Add HasStatus instance for Headers (that defers StatusOf to underlying value) (#1649)

* Add HasStatus instance for Headers (that defers StatusOf to underlying value)

* changelog.d/1649

.github/workflows/master.yml

@@ -13,12 +13,14 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        cabal: ["3.4"]
+        cabal: ["3.6"]
         ghc:
           - "8.6.5"
           - "8.8.4"
           - "8.10.7"
-          - "9.0.1"
+          - "9.0.2"
+          - "9.2.2"
+          - "9.4.2"
 
     steps:
     - uses: actions/checkout@v2
@@ -47,10 +49,7 @@ jobs:
 
     - name: Configure
       run: |
-        # Using separate store-dir because default one already has 'ghc-paths' package installed
+        cabal install --ignore-project -j2 doctest --constraint='doctest ^>=0.20'
-        # with hardcoded path to ghcup's GHC path (which it was built with). This leads to failure in
-        # doctest, as it tries to invoke that GHC, and it doesn't exist here.
-        cabal --store-dir /tmp/cabal-store install --ignore-project -j2 doctest --constraint='doctest ^>=0.18'
 
     - name: Build
       run: |
@@ -61,66 +60,56 @@ jobs:
         cabal test all
 
     - name: Run doctests
-      # doctests are broken on GHC 9 due to compiler bug:
-      # https://gitlab.haskell.org/ghc/ghc/-/issues/19460
-      continue-on-error: ${{ matrix.ghc == '9.0.1' }}
       run: |
         # Necessary for doctest to be found in $PATH
         export PATH="$HOME/.cabal/bin:$PATH"
 
-        # Filter out base-compat-batteries from .ghc.environment.*, as its modules
+        DOCTEST="cabal repl --with-ghc=doctest --ghc-options=-w"
-        # conflict with those of base-compat.
+        (cd servant && eval $DOCTEST)
-        #
+        (cd servant-client && eval $DOCTEST)
-        # FIXME: This is an ugly hack. Ultimately, we'll want to use cabal-doctest
+        (cd servant-client-core && eval $DOCTEST)
-        # (or cabal v2-doctest, if it ever lands) to provide a clean GHC environment.
+        (cd servant-http-streams && eval $DOCTEST)
-        # This might allow running doctests in GHCJS build as well.
+        (cd servant-docs && eval $DOCTEST)
-        perl -i -e 'while (<ARGV>) { print unless /package-id\s+(base-compat-batteries)-\d+(\.\d+)*/; }' .ghc.environment.*
+        (cd servant-foreign && eval $DOCTEST)
+        (cd servant-server && eval $DOCTEST)
+        (cd servant-machines && eval $DOCTEST)
+        (cd servant-conduit && eval $DOCTEST)
+        (cd servant-pipes && eval $DOCTEST)
 
-        (cd servant && doctest src)
+  # stack:
-        (cd servant-client && doctest src)
+  #   name: stack / ghc ${{ matrix.ghc }}
-        (cd servant-client-core && doctest src)
+  #   runs-on: ubuntu-latest
-        (cd servant-http-streams && doctest src)
+  #   strategy:
-        (cd servant-docs && doctest src)
+  #     matrix:
-        (cd servant-foreign && doctest src)
+  #       stack: ["2.7.5"]
-        (cd servant-server && doctest src)
+  #       ghc: ["8.10.7"]
-        (cd servant-machines && doctest src)
-        (cd servant-conduit && doctest src)
-        (cd servant-pipes && doctest src)
 
-  stack:
+  #   steps:
-    name: stack / ghc ${{ matrix.ghc }}
+  #   - uses: actions/checkout@v2
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        stack: ["2.7.3"]
-        ghc: ["8.10.4"]
 
-    steps:
+  #   - uses: haskell/actions/setup@v1
-    - uses: actions/checkout@v2
+  #     name: Setup Haskell Stack
+  #     with:
+  #       ghc-version: ${{ matrix.ghc }}
+  #       stack-version: ${{ matrix.stack }}
 
-    - uses: haskell/actions/setup@v1
+  #   - uses: actions/cache@v2.1.3
-      name: Setup Haskell Stack
+  #     name: Cache ~/.stack
-      with:
+  #     with:
-        ghc-version: ${{ matrix.ghc }}
+  #       path: ~/.stack
-        stack-version: ${{ matrix.stack }}
+  #       key: ${{ runner.os }}-${{ matrix.ghc }}-stack
 
-    - uses: actions/cache@v2.1.3
+  #   - name: Install dependencies
-      name: Cache ~/.stack
+  #     run: |
-      with:
+  #       stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks --only-dependencies
-        path: ~/.stack
-        key: ${{ runner.os }}-${{ matrix.ghc }}-stack
 
-    - name: Install dependencies
+  #   - name: Build
-      run: |
+  #     run: |
-        stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks --only-dependencies
+  #       stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks
 
-    - name: Build
+  #   - name: Test
-      run: |
+  #     run: |
-        stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks
+  #       stack test --system-ghc
-
-    - name: Test
-      run: |
-        stack test --system-ghc
 
   ghcjs:
     name: ubuntu-latest / ghcjs 8.6

.gitignore

@@ -31,6 +31,7 @@ doc/venv
 doc/tutorial/static/api.js
 doc/tutorial/static/jq.js
 shell.nix
+.hspec-failures
 
 # nix
 result*

CONTRIBUTING.md

@@ -79,8 +79,10 @@ not been a timely response to a PR, you can ping the Maintainers group (with
 We encourage people to experiment with new combinators and instances - it is
 one of the most powerful ways of using `servant`, and a wonderful way of
 getting to know it better. If you do write a new combinator, we would love to
-know about it! Either hop on #servant on freenode and let us know, or open an
+know about it! Either hop on
-issue with the `news` tag (which we will close when we read it).
+[#haskell-servant on libera.chat](https://web.libera.chat/#haskell-servant) and
+let us know, or open an issue with the `news` tag (which we will close when we
+read it).
 
 As for adding them to the main repo: maintaining combinators can be expensive,
 since official combinators must have instances for all classes (and new classes

cabal.project

@@ -12,6 +12,7 @@ packages:
   servant-docs/
   servant-foreign/
   servant-server/
+  servant-swagger/
   doc/tutorial/
 
 -- servant streaming
@@ -46,30 +47,8 @@ packages:
   doc/cookbook/using-custom-monad
   doc/cookbook/using-free-client
   -- doc/cookbook/open-id-connect
+  doc/cookbook/managed-resource
 
 tests: True
 optimization: False
 -- reorder-goals: True
-
-constraints:
-  -- see https://github.com/haskell-infra/hackage-trustees/issues/119
-  foundation >=0.0.14,
-  memory <0.14.12 || >0.14.12
-
-constraints: base-compat ^>=0.11
-constraints: semigroups ^>=0.19
-
--- allow-newer: sqlite-simple-0.4.16.0:semigroups
--- allow-newer: direct-sqlite-2.3.24:semigroups
-
--- needed for doctests
-write-ghc-environment-files: always
-
--- https://github.com/chordify/haskell-servant-pagination/pull/12
-allow-newer: servant-pagination-2.2.2:servant
-allow-newer: servant-pagination-2.2.2:servant-server
-
-allow-newer: servant-js:servant
-
--- ghc 9
-allow-newer: tdigest:base

changelog.d/1469

@@ -0,0 +1,11 @@
+synopsis: Derive HasClient good response status from Verb status
+prs: #1469
+description: {
+`HasClient` instances for the `Verb` datatype use `runRequest` in
+`clientWithRoute` definitions.
+This means that a request performed with `runClientM` will be successful if and
+only if the endpoint specify a response status code >=200 and <300.
+This change replaces `runRequest` with `runRequestAcceptStatus` in `Verb`
+instances for the `HasClient` class, deriving the good response status from
+the `Verb` status.
+}

changelog.d/1529

@@ -0,0 +1,10 @@
+synopsis: Fix performRequest in servant-client-ghcjs
+prs: #1529
+
+description: {
+
+performRequest function in servant-client-ghcjs was not compatible with the
+latest RunClient typeclass. Added the acceptStatus parameter and fixed the
+functionality to match what servant-client provides.
+
+}

changelog.d/1556

@@ -0,0 +1,81 @@
+synopsis: Display capture hints in router layout
+prs: #1556
+
+description: {
+
+This PR enhances the `Servant.Server.layout` function, which produces a textual description of the routing layout of an API. More precisely, it changes `<capture>` blocks, so that they display the name and type of the variable being captured instead.
+
+Example:
+
+For the following API
+```haskell
+type API =
+       "a" :> "d" :> Get '[JSON] NoContent
+  :<|> "b" :> Capture "x" Int :> Get '[JSON] Bool
+  :<|> "a" :> "e" :> Get '[JSON] Int
+```
+
+we previously got the following output:
+
+```
+/
+├─ a/
+│  ├─ d/
+│  │  └─•
+│  └─ e/
+│     └─•
+└─ b/
+   └─ <capture>/
+      ├─•
+      ┆
+      └─•
+```
+
+now we get:
+
+```
+/
+├─ a/
+│  ├─ d/
+│  │  └─•
+│  └─ e/
+│     └─•
+└─ b/
+   └─ <x::Int>/
+      ├─•
+      ┆
+      └─•
+```
+
+This change is achieved by the introduction of a CaptureHint type, which is passed as an extra argument to the CaptureRouter and CaptureAllRouter constructors for the Router' type.
+CaptureHint values are then used in routerLayout, to display the name and type of captured values, instead of just `<capture>` previously.
+
+N.B.:
+Because the choice smart constructor for routers can aggregate Capture combinators with different capture hints, the Capture*Router constructors actually take a list of CaptureHint, instead of a single one.
+
+This PR also introduces Spec tests for the routerLayout function.
+
+Warning:
+This change is potentially breaking, because it adds the constraint `Typeable a` to all types that are to be captured. Because all types are typeable since GHC 7.10, this is not as bad as it sounds ; it only break expressions where `a` is quantified in an expression with `Capture a`.
+In those cases, the fix is easy: it suffices to add `Typeable a` to the left-hand side of the quantification constraint.
+
+For instance, the following code will no longer compile:
+```haskell
+type MyAPI a = Capture "foo" a :> Get '[JSON] ()
+
+myServer :: forall a. Server (MyAPI a)
+myServer = const $ return ()
+
+myApi :: forall a. Proxy (MyAPI a)
+myApi = Proxy
+
+app :: forall a. (FromHttpApiData a) => Application
+app = serve (myApi @a) (myServer @a)
+```
+
+Indeed, `app` should be replaced with:
+```haskell
+app :: forall a. (FromHttpApiData a, Typeable a) => Application
+app = serve (myApi @a) (myServer @a)
+```
+}

changelog.d/1569

@@ -0,0 +1,13 @@
+synopsis: Encode captures using toEncodedUrlPiece
+prs: #1569
+issues: #1511
+
+description: {
+The `servant-client` library now makes direct use of `toEncodedUrlPiece` from `ToHttpApiData`
+to encode captured values when building the request path. It gives user freedom to implement
+URL-encoding however they need.
+
+Previous behavior was to use `toUrlPiece` and URL-encode its output using `toEncodedUrlPiece`
+from the `Text` instance of `ToHttpApiData`. The issue with this approach is that
+`ToHttpApiData Text` is overly zealous and also encodes characters, such as `*`, which are perfectly valid in a URL.
+}

changelog.d/1573

@@ -0,0 +1,2 @@
+synopsis: Add API docs for ServerT
+prs: #1573

changelog.d/1580

@@ -0,0 +1,12 @@
+synopsis: Allow IO in validationKeys
+prs: #1580
+issues: #1579
+
+description: {
+
+Currently validationKeys are a fixed JWKSet. This does not work with OIDC
+providers such as AWS Cognito or Okta, which regularly fetching jwks_uri to
+discover new and expired keys.
+
+This change alters the type of validationKeys from JWKSet to IO JWKSet.
+}

changelog.d/1589

@@ -0,0 +1,2 @@
+synopsis: Only include question mark for nonempty query strings
+prs: 1589

changelog.d/1595

@@ -0,0 +1,2 @@
+synopsis: Run ClientEnv's makeClientRequest in IO.
+prs: #1595

changelog.d/1606

@@ -0,0 +1,10 @@
+synopsis: Handle Cookies correctly for RunStreamingClient
+prs: #1606
+issues: #1605
+
+description: {
+
+Makes performWithStreamingRequest take into consideration the
+CookieJar, which it previously didn't.
+
+}

changelog.d/1638

@@ -0,0 +1,2 @@
+synopsis: Add Functor instance to AuthHandler.
+prs: #1638

changelog.d/1649

@@ -0,0 +1,8 @@
+synopsis: Add HasStatus instance for Headers (that defers StatusOf to underlying value)
+prs: #1649
+
+description: {
+
+Adds a new HasStatus (Headers hs a) instance (StatusOf (Headers hs a) = StatusOf a)
+
+}

doc/Makefile

@@ -10,7 +10,7 @@ BUILDDIR      = _build
 
 # Put it first so that "make" without argument is like "make help".
 help:
-	@if [ ! -d venv ]; then echo "WARNING: There is no venv directory, did you forget to 'virtualenv venv'. Check building-the-docs file."; fi
+	@if [ ! -d venv ]; then echo "WARNING: There is no venv directory, did you forget to 'virtualenv venv'. Check README.md."; fi
 	@if [ ! "z$$(which $(SPHINXBUILD))" = "z$$(pwd)/venv/bin/sphinx-build" ]; then echo "WARNING: Did you forgot to 'source venv/bin/activate'"; fi
 	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
 

doc/conf.py

@@ -46,7 +46,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = u'Servant'
-copyright = u'2018, Servant Contributors'
+copyright = u'2022, Servant Contributors'
 author = u'Servant Contributors'
 
 # The version info for the project you're documenting, acts as replacement for
@@ -169,4 +169,3 @@ texinfo_documents = [
 source_parsers = {
     '.lhs': CommonMarkParser,
 }
-

doc/cookbook/basic-auth/basic-auth.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-basic-auth
 version:             0.1
 synopsis:            Basic Authentication cookbook example
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-basic-auth

doc/cookbook/basic-streaming/basic-streaming.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-basic-streaming
 version:             2.1
 synopsis:            Streaming in servant without streaming libs
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-basic-streaming

doc/cookbook/curl-mock/curl-mock.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-curl-mock
 version:             0.1
 synopsis:            Generate curl mock requests cookbook example
@@ -7,10 +8,12 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbock-curl-mock
+  if impl(ghc >= 9.2)
+    -- generic-arbitrary is incompatible
+    buildable: False
   main-is:             CurlMock.lhs
   build-depends:       base == 4.*
                      , aeson

doc/cookbook/custom-errors/custom-errors.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-custom-errors
 version:             0.1
 synopsis:            Return custom error messages from combinators
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-custom-errors

doc/cookbook/db-mysql-basics/mysql-basics.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                mysql-basics
 version:             0.1.0.0
 synopsis:            Simple MySQL API cookbook example
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 
 executable run
   hs-source-dirs:      .

doc/cookbook/db-postgres-pool/db-postgres-pool.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-db-postgres-pool
 version:             0.1
 synopsis:            Simple PostgreSQL connection pool cookbook example
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-db-postgres-pool

doc/cookbook/db-sqlite-simple/db-sqlite-simple.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-db-sqlite-simple
 version:             0.1
 synopsis:            Simple SQLite DB cookbook example
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-db-sqlite-simple

doc/cookbook/file-upload/file-upload.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-file-upload
 version:             0.1
 synopsis:            File upload cookbook example
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-file-upload

doc/cookbook/generic/generic.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-generic
 version:             0.1
 synopsis:            Using custom monad to pass a state between handlers
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-using-custom-monad

doc/cookbook/hoist-server-with-context/hoist-server-with-context.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-hoist-server-with-context
 version:             0.0.1
 synopsis:            JWT and basic access authentication with a Custom Monad cookbook example
@@ -10,7 +11,6 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 category:            Servant
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-hoist-server-with-context

doc/cookbook/https/https.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-https
 version:             0.1
 synopsis:            HTTPS cookbook example
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-https

doc/cookbook/index.rst

@@ -6,8 +6,8 @@ how to solve many common problems with servant. If you're
 interested in contributing examples of your own, feel free
 to open an issue or a pull request on
 `our github repository <https://github.com/haskell-servant/servant>`_
-or even to just get in touch with us on the **#servant** IRC channel
+or even to just get in touch with us on the `**#haskell-servant** IRC channel
-on freenode or on
+on libera.chat <https://web.libera.chat/#haskell-servant>_ or on
 `the mailing list <https://groups.google.com/forum/#!forum/haskell-servant>`_.
 
 The scope is very wide. Simple and fancy authentication schemes,
@@ -37,3 +37,4 @@ you name it!
   sentry/Sentry.lhs
   testing/Testing.lhs
   open-id-connect/OpenIdConnect.lhs
+  managed-resource/ManagedResource.lhs

doc/cookbook/jwt-and-basic-auth/jwt-and-basic-auth.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-jwt-and-basic-auth
 version:             0.0.1
 synopsis:            JWT and basic access authentication cookbook example
@@ -10,7 +11,6 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 category:            Servant
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-jwt-and-basic-auth

doc/cookbook/managed-resource/ManagedResource.lhs

@@ -0,0 +1,114 @@
+# Request-lifetime Managed Resources
+
+Let's see how we can write a handle that uses a resource managed by Servant. The resource is created automatically by Servant when the server recieves a request, and the resource is automatically destroyed when the server is finished handling a request.
+
+As usual, we start with a little bit of throat clearing.
+
+
+``` haskell
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE TypeOperators #-}
+import Control.Concurrent
+import Control.Exception (bracket, throwIO)
+import Control.Monad.IO.Class
+import Control.Monad.Trans.Resource
+import Data.Acquire
+import Network.HTTP.Client (newManager, defaultManagerSettings)
+import Network.Wai.Handler.Warp
+import Servant
+import Servant.Client
+import System.IO
+```
+
+Here we define an API type that uses the `WithResource` combinator. The server handler for an endpoint with a `WithResource res` component will receive a value of that type as an argument.
+
+``` haskell
+type API = WithResource Handle :> ReqBody '[PlainText] String :> Post '[JSON] NoContent
+
+api :: Proxy API
+api = Proxy
+```
+
+But this resource value has to come from somewhere. Servant obtains the value using an Acquire provided in the context. The Acquire knows how to both create and destroy resources of a particular type.
+
+``` haskell
+appContext :: Context '[Acquire Handle]
+appContext = acquireHandle :. EmptyContext
+
+acquireHandle :: Acquire Handle
+acquireHandle = mkAcquire newHandle closeHandle
+
+newHandle :: IO Handle
+newHandle = do
+  putStrLn "opening file"
+  h <- openFile "test.txt" AppendMode
+  putStrLn "opened file"
+  return h
+
+closeHandle :: Handle -> IO ()
+closeHandle h = do
+  putStrLn "closing file"
+  hClose h
+  putStrLn "closed file"
+```
+
+Now we create the handler which will use this resource. This handler will write the request message to the System.IO.Handle which was provided to us. In some situations the handler will succeed, but in some in will fail. In either case, Servant will clean up the resource for us.
+
+``` haskell
+server :: Server API
+server = writeToFile
+
+  where writeToFile :: (ReleaseKey, Handle) -> String -> Handler NoContent
+        writeToFile (_, h) msg = case msg of
+          "illegal" -> error "wait, that's illegal!"
+          legalMsg -> liftIO $ do
+            putStrLn "writing file"
+            hPutStrLn h legalMsg
+            putStrLn "wrote file"
+            return NoContent
+```
+
+Finally we run the server in the background while we post messages to it.
+
+``` haskell
+runApp :: IO ()
+runApp = run 8080 (serveWithContext api appContext $ server)
+
+postMsg :: String -> ClientM NoContent
+postMsg = client api
+
+main :: IO ()
+main = do
+  mgr <- newManager defaultManagerSettings
+  bracket (forkIO $ runApp) killThread $ \_ -> do
+    ms <- flip runClientM (mkClientEnv mgr (BaseUrl Http "localhost" 8080 "")) $ do
+      liftIO $ putStrLn "sending hello message"
+      _ <- postMsg "hello"
+      liftIO $ putStrLn "sending illegal message"
+      _ <- postMsg "illegal"
+      liftIO $ putStrLn "done"
+    print ms
+```
+
+This program prints
+
+```
+sending hello message
+opening file
+opened file
+writing file
+wrote file
+closing file
+closed file
+sending illegal message
+opening file
+opened file
+closing file
+closed file
+wait, that's illegal!
+CallStack (from HasCallStack):
+  error, called at ManagedResource.lhs:63:24 in main:Main
+Left (FailureResponse (Request {requestPath = (BaseUrl {baseUrlScheme = Http, baseUrlHost = "localhost", baseUrlPort = 8080, baseUrlPath = ""},""), requestQueryString = fromList [], requestBody = Just ((),text/plain;charset=utf-8), requestAccept = fromList [], requestHeaders = fromList [], requestHttpVersion = HTTP/1.1, requestMethod = "POST"}) (Response {responseStatusCode = Status {statusCode = 500, statusMessage = "Internal Server Error"}, responseHeaders = fromList [("Transfer-Encoding","chunked"),("Date","Thu, 24 Nov 2022 21:04:47 GMT"),("Server","Warp/3.3.23"),("Content-Type","text/plain; charset=utf-8")], responseHttpVersion = HTTP/1.1, responseBody = "Something went wrong"}))
+```
+
+and appends to a file called `test.txt`. We can see from the output that when a legal message is sent, the file is opened, written to, and closed. We can also see that when an illegal message is sent, the file is opened but not written to. Crucially, it is still closed even though the handler threw an exception.

doc/cookbook/managed-resource/managed-resource.cabal

@@ -0,0 +1,30 @@
+cabal-version:       2.2
+name:                cookbook-managed-resource
+version:             0.1
+synopsis:            Simple managed resource cookbook example
+homepage:            http://docs.servant.dev/
+license:             BSD-3-Clause
+license-file:        ../../../servant/LICENSE
+author:              Servant Contributors
+maintainer:          haskell-servant-maintainers@googlegroups.com
+build-type:          Simple
+tested-with:         GHC==9.4.2
+
+executable cookbook-managed-resource
+  main-is:             ManagedResource.lhs
+  build-depends:       base == 4.*
+                     , text >= 1.2
+                     , aeson >= 1.2
+                     , servant
+                     , servant-client
+                     , servant-server
+                     , warp >= 3.2
+                     , wai >= 3.2
+                     , http-types >= 0.12
+                     , markdown-unlit >= 0.4
+                     , http-client >= 0.5
+                     , transformers
+                     , resourcet
+  default-language:    Haskell2010
+  ghc-options:         -Wall -pgmL markdown-unlit
+  build-tool-depends: markdown-unlit:markdown-unlit

doc/cookbook/open-id-connect/OpenIdConnect.cabal

@@ -1,3 +1,4 @@
+cabal-version:  2.2
 name:           open-id-connect
 version:        0.1
 synopsis:       OpenId Connect with Servant example
@@ -7,7 +8,6 @@ license-file:   ../../../servant/LICENSE
 author:         Servant Contributors
 maintainer:     haskell-servant-maintainers@googlegroups.com
 build-type:     Simple
-cabal-version:  >= 1.10
 tested-with:    GHC==8.6.5
 
 executable cookbook-openidconnect

doc/cookbook/open-id-connect/OpenIdConnect.lhs

@@ -330,7 +330,7 @@ data Customer = Customer {
 ```
 
 Here is the code that displays the homepage.
-It should contain a link to the the `/login` URL.
+It should contain a link to the `/login` URL.
 When the user clicks on this link it will be redirected to Google login page
 with some generated information.
 

doc/cookbook/pagination/pagination.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-pagination
 version:             2.1
 synopsis:            Pagination with Servant example
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-pagination

doc/cookbook/sentry/sentry.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-sentry
 version:             0.1
 synopsis:            Collecting runtime exceptions using Sentry
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-sentry

doc/cookbook/structuring-apis/structuring-apis.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-structuring-apis
 version:             0.1
 synopsis:            Example that shows how APIs can be structured
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-structuring-apis

doc/cookbook/testing/testing.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-testing
 version:             0.0.1
 synopsis:            Common testing patterns in Servant apps
@@ -9,7 +10,6 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 category:            Servant
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-testing

doc/cookbook/using-custom-monad/using-custom-monad.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-using-custom-monad
 version:             0.1
 synopsis:            Using custom monad to pass a state between handlers
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-using-custom-monad

doc/cookbook/using-free-client/UsingFreeClient.lhs

@@ -119,7 +119,7 @@ Now we can use `servant-client`'s internals to convert servant's `Request`
 to http-client's `Request`, and we can inspect it:
 
 ```haskell
-        let req' = I.defaultMakeClientRequest burl req
+        req' <- I.defaultMakeClientRequest burl req
         putStrLn $ "Making request: " ++ show req'
 ```
 

doc/cookbook/using-free-client/using-free-client.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-using-free-client
 version:             0.1
 synopsis:            Using Free client
@@ -7,7 +8,6 @@ license-file:        ../../../servant/LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
 
 executable cookbook-using-free-client

doc/cookbook/uverb/UVerb.lhs

@@ -199,7 +199,7 @@ parsers in the hope that the ones that should will always error out so
 you can try until the right one returns a value.)
 
 [servant-exceptions](https://github.com/ch1bo/servant-exceptions) is
-another shot at at the problem.  It is inspired by
+another shot at the problem.  It is inspired by
 servant-checked-exceptions, so it may be worth taking a closer look.
 The README claims that
 [cardano-sl](https://github.com/input-output-hk/cardano-sl) also has

doc/cookbook/uverb/uverb.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                cookbook-uverb
 version:             0.0.1
 synopsis:            How to use the 'UVerb' type.
@@ -9,7 +10,6 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 category:            Servant
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:         GHC==8.6.5, GHC==8.8.4, GHC==8.10.7
 
 executable cookbook-uverb

doc/links.rst

@@ -12,7 +12,7 @@ Helpful Links
   `https://github.com/haskell-servant/servant/issues <https://github.com/haskell-servant/servant/issues>`_
 
 - the irc channel:
-  ``#servant`` on freenode
+  `#haskell-servant on libera.chat <https://web.libera.chat/#haskell-servant>`_
 
 - the mailing list:
   `groups.google.com/forum/#!forum/haskell-servant <https://groups.google.com/forum/#!forum/haskell-servant>`_

doc/requirements.txt

@@ -1,3 +1,4 @@
 recommonmark==0.5.0
 Sphinx==1.8.4
 sphinx_rtd_theme>=0.4.2
+jinja2<3.1.0

doc/tutorial/install.rst

@@ -40,3 +40,29 @@ nix
 `Nix <https://nixos.org/nix/>`_ users should feel free to take a look at
 the `nix/shell.nix` file in the repository and use it to provision a suitable
 environment to build and run the examples.
+
+Note for Ubuntu users
+--------
+
+Ubuntu's packages for `ghc`, `cabal`, and `stack` are years out of date.
+If the instructions above fail for you,
+try replacing the Ubuntu packages with up-to-date versions.
+First remove the installed versions:
+
+.. code-block:: bash
+
+   # remove the obsolete versions
+   $ sudo apt remove ghc haskell-stack cabal-install
+
+Then install fresh versions of the Haskell toolchain
+using the `ghcup <https://www.haskell.org/ghcup/install/>`_ installer.
+
+As of February 2022, one easy way to do this is by running a bootstrap script:
+
+.. code-block:: bash
+
+   $ curl --proto '=https' --tlsv1.2 -sSf https://get-ghcup.haskell.org | sh
+
+The script is interactive and will prompt you for details about what
+you want installed and where.  To install manually,
+see `the detailed instructions <https://www.haskell.org/ghcup/install/#manual-install>`_.

doc/tutorial/tutorial.cabal

@@ -1,3 +1,4 @@
+cabal-version:       2.2
 name:                tutorial
 version:             0.10
 synopsis:            The servant tutorial
@@ -11,7 +12,6 @@ license-file:        LICENSE
 author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 build-type:          Simple
-cabal-version:       >=1.10
 tested-with:
   GHC==8.6.5
   GHC==8.8.3, GHC ==8.10.7
@@ -64,7 +64,7 @@ library
     , blaze-markup >= 0.8.0.0 && < 0.9
     , cookie       >= 0.4.3   && < 0.5
     , js-jquery    >= 3.3.1   && < 3.4
-    , lucid        >= 2.9.11  && < 2.10
+    , lucid        >= 2.9.11  && < 2.12
     , random       >= 1.1     && < 1.3
     , servant-js   >= 0.9     && < 0.10
     , time         >= 1.6.0.1 && < 1.13

servant-auth/servant-auth-client/servant-auth-client.cabal

@@ -1,3 +1,4 @@
+cabal-version:  2.2
 name:           servant-auth-client
 version:        0.4.1.0
 synopsis:       servant-client/servant-auth compatibility
@@ -6,9 +7,9 @@ description:    This package provides instances that allow generating clients fr
                 APIs that use
                 <https://hackage.haskell.org/package/servant-auth servant-auth's> @Auth@ combinator.
                 .
-                For a quick overview of the usage, see the <http://github.com/haskell-servant/servant/servant-auth#readme README>.
+                For a quick overview of the usage, see the <https://github.com/haskell-servant/servant/tree/master/servant-auth#readme README>.
 category:       Web, Servant, Authentication
-homepage:       http://github.com/haskell-servant/servant/servant-auth#readme
+homepage:       https://github.com/haskell-servant/servant/tree/master/servant-auth#readme
 bug-reports:    https://github.com/haskell-servant/servant/issues
 author:         Julian K. Arni
 maintainer:     jkarni@gmail.com
@@ -17,7 +18,6 @@ license:        BSD-3-Clause
 license-file:   LICENSE
 tested-with:    GHC ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1
 build-type:     Simple
-cabal-version:  >= 1.10
 extra-source-files:
     CHANGELOG.md
 
@@ -31,12 +31,12 @@ library
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
   build-depends:
-      base                >= 4.10     && < 4.16
+      base                >= 4.10     && < 4.18
-    , bytestring          >= 0.10.6.0 && < 0.11
+    , bytestring          >= 0.10.6.0 && < 0.12
     , containers          >= 0.5.6.2  && < 0.7
     , servant-auth        == 0.4.*
-    , servant             >= 0.13     && < 0.19
+    , servant             >= 0.13     && < 0.20
-    , servant-client-core >= 0.13     && < 0.19
+    , servant-client-core >= 0.13     && < 0.20
 
   exposed-modules:
       Servant.Auth.Client
@@ -50,7 +50,7 @@ test-suite spec
       test
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
-  build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.9
+  build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.10
 
   -- dependencies with bounds inherited from the library stanza
   build-depends:
@@ -62,19 +62,19 @@ test-suite spec
  
   -- test dependencies
   build-depends:
-      hspec                >= 2.5.5    && < 2.9
+      hspec                >= 2.5.5    && < 2.10
     , QuickCheck           >= 2.11.3   && < 2.15
-    , aeson                >= 1.3.1.1  && < 1.6
+    , aeson                >= 1.3.1.1  && < 3
-    , bytestring           >= 0.10.6.0 && < 0.11
+    , bytestring           >= 0.10.6.0 && < 0.12
     , http-client          >= 0.5.13.1 && < 0.8
     , http-types           >= 0.12.2   && < 0.13
     , servant-auth-server  >= 0.4.2.0  && < 0.5
-    , servant-server       >= 0.13     && < 0.19
+    , servant-server       >= 0.13     && < 0.20
     , time                 >= 1.5.0.1  && < 1.13
     , transformers         >= 0.4.2.0  && < 0.6
     , wai                  >= 3.2.1.2  && < 3.3
     , warp                 >= 3.2.25   && < 3.4
-    , jose                 >= 0.7.0.0  && < 0.9
+    , jose                 >= 0.10     && < 0.11
   other-modules:
       Servant.Auth.ClientSpec
   default-language: Haskell2010

servant-auth/servant-auth-docs/servant-auth-docs.cabal

@@ -1,3 +1,4 @@
+cabal-version:  2.2
 name:           servant-auth-docs
 version:        0.2.10.0
 synopsis:       servant-docs/servant-auth compatibility
@@ -6,9 +7,9 @@ description:    This package provides instances that allow generating docs from
                 APIs that use
                 <https://hackage.haskell.org/package/servant-auth servant-auth's> @Auth@ combinator.
                 .
-                For a quick overview of the usage, see the <http://github.com/haskell-servant/servant/servant-auth#readme README>.
+                For a quick overview of the usage, see the <https://github.com/haskell-servant/servant/tree/master/servant-auth#readme README>.
 category:       Web, Servant, Authentication
-homepage:       http://github.com/haskell-servant/servant/servant-auth#readme
+homepage:       https://github.com/haskell-servant/servant/tree/master/servant-auth#readme
 bug-reports:    https://github.com/haskell-servant/servant/issues
 author:         Julian K. Arni
 maintainer:     jkarni@gmail.com
@@ -17,7 +18,6 @@ license:        BSD-3-Clause
 license-file:   LICENSE
 tested-with:    GHC ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1
 build-type:     Custom
-cabal-version:  >= 1.10
 extra-source-files:
     CHANGELOG.md
 
@@ -35,11 +35,11 @@ library
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
   build-depends:
-      base         >= 4.10    && < 4.16
+      base         >= 4.10    && < 4.18
-    , servant-docs >= 0.11.2  && < 0.12
+    , servant-docs >= 0.11.2  && < 0.13
-    , servant      >= 0.13    && < 0.19
+    , servant      >= 0.13    && < 0.20
     , servant-auth == 0.4.*
-    , lens         >= 4.16.1  && <5.1
+    , lens         >= 4.16.1  && <5.3
   exposed-modules:
       Servant.Auth.Docs
   default-language: Haskell2010
@@ -50,7 +50,7 @@ test-suite doctests
   build-depends:
     base,
     servant-auth-docs,
-    doctest             >= 0.16   && < 0.19,
+    doctest             >= 0.16   && < 0.21,
     QuickCheck          >= 2.11.3 && < 2.15,
     template-haskell
   ghc-options:         -Wall -threaded
@@ -64,7 +64,7 @@ test-suite spec
       test
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
-  build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.9
+  build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.10
 
   -- dependencies with bounds inherited from the library stanza
   build-depends:
@@ -78,7 +78,7 @@ test-suite spec
   -- test dependencies
   build-depends:
       servant-auth-docs
-    , hspec             >= 2.5.5  && < 2.9
+    , hspec             >= 2.5.5  && < 2.10
     , QuickCheck        >= 2.11.3 && < 2.15
 
   default-language: Haskell2010

servant-auth/servant-auth-server/servant-auth-server.cabal

@@ -1,14 +1,15 @@
+cabal-version:  2.2
 name:           servant-auth-server
-version: 0.4.6.0
+version: 0.4.7.0
 synopsis:       servant-server/servant-auth compatibility
 description:    This package provides the required instances for using the @Auth@ combinator
                 in your 'servant' server.
                 .
                 Both cookie- and token- (REST API) based authentication is provided.
                 .
-                For a quick overview of the usage, see the <http://github.com/haskell-servant/servant/servant-auth#readme README>.
+                For a quick overview of the usage, see the <https://github.com/haskell-servant/servant/tree/master/servant-auth#readme README>.
 category:       Web, Servant, Authentication
-homepage:       http://github.com/haskell-servant/servant/servant-auth#readme
+homepage:       https://github.com/haskell-servant/servant/tree/master/servant-auth#readme
 bug-reports:    https://github.com/haskell-servant/servant/issues
 author:         Julian K. Arni
 maintainer:     jkarni@gmail.com
@@ -17,7 +18,6 @@ license:        BSD-3-Clause
 license-file:   LICENSE
 tested-with:    GHC ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1
 build-type:     Simple
-cabal-version:  >= 1.10
 extra-source-files:
     CHANGELOG.md
 
@@ -31,27 +31,27 @@ library
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
   build-depends:
-      base                    >= 4.10     && < 4.16
+      base                    >= 4.10     && < 4.18
-    , aeson                   >= 1.3.1.1  && < 1.6
+    , aeson                   >= 1.0.0.1  && < 3
-    , base64-bytestring       >= 1.0.0.1  && < 1.3
+    , base64-bytestring       >= 1.0.0.1  && < 2
     , blaze-builder           >= 0.4.1.0  && < 0.5
-    , bytestring              >= 0.10.6.0 && < 0.11
+    , bytestring              >= 0.10.6.0 && < 0.12
     , case-insensitive        >= 1.2.0.11 && < 1.3
     , cookie                  >= 0.4.4    && < 0.5
     , data-default-class      >= 0.1.2.0  && < 0.2
     , entropy                 >= 0.4.1.3  && < 0.5
     , http-types              >= 0.12.2   && < 0.13
-    , jose                    >= 0.7.0.0  && < 0.9
+    , jose                    >= 0.10     && < 0.11
-    , lens                    >= 4.16.1   && < 5.1
+    , lens                    >= 4.16.1   && < 5.3
-    , memory                  >= 0.14.16  && < 0.17
+    , memory                  >= 0.14.16  && < 0.19
     , monad-time              >= 0.3.1.0  && < 0.4
-    , mtl                     >= 2.2.2    && < 2.3
+    , mtl                     ^>= 2.2.2   || ^>= 2.3.1
-    , servant                 >= 0.13     && < 0.19
+    , servant                 >= 0.13     && < 0.20
     , servant-auth            == 0.4.*
-    , servant-server          >= 0.13     && < 0.19
+    , servant-server          >= 0.13     && < 0.20
     , tagged                  >= 0.8.4    && < 0.9
-    , text                    >= 1.2.3.0  && < 1.3
+    , text                    >= 1.2.3.0  && < 2.1
-    , time                    >= 1.5.0.1  && < 1.10
+    , time                    >= 1.5.0.1  && < 1.13
     , unordered-containers    >= 0.2.9.0  && < 0.3
     , wai                     >= 3.2.1.2  && < 3.3
 
@@ -102,7 +102,7 @@ test-suite spec
       test
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
-  build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.8
+  build-tool-depends: hspec-discover:hspec-discover >=2.5.5 && <2.10
 
   -- dependencies with bounds inherited from the library stanza
   build-depends:
@@ -123,10 +123,10 @@ test-suite spec
   -- test dependencies
   build-depends:
       servant-auth-server
-    , hspec       >= 2.5.5     && < 2.8
+    , hspec       >= 2.5.5     && < 2.10
     , QuickCheck  >= 2.11.3    && < 2.15
     , http-client >= 0.5.13.1  && < 0.8
-    , lens-aeson  >= 1.0.2     && < 1.2
+    , lens-aeson  >= 1.0.2     && < 1.3
     , warp        >= 3.2.25    && < 3.4
     , wreq        >= 0.5.2.1   && < 0.6
   other-modules:

servant-auth/servant-auth-server/src/Servant/Auth/Server/Internal/AddSetCookie.hs

@@ -11,6 +11,8 @@ import           Data.Tagged              (Tagged (..))
 import qualified Network.HTTP.Types       as HTTP
 import           Network.Wai              (mapResponseHeaders)
 import           Servant
+import           Servant.API.Generic
+import           Servant.Server.Generic
 import           Web.Cookie
 
 -- What are we doing here? Well, the idea is to add headers to the response,
@@ -34,6 +36,7 @@ type family AddSetCookieApiVerb a where
 type family AddSetCookieApi a :: *
 type instance AddSetCookieApi (a :> b) = a :> AddSetCookieApi b
 type instance AddSetCookieApi (a :<|> b) = AddSetCookieApi a :<|> AddSetCookieApi b
+type instance AddSetCookieApi (NamedRoutes api) = AddSetCookieApi (ToServantApi api)
 type instance AddSetCookieApi (Verb method stat ctyps a)
   = Verb method stat ctyps (AddSetCookieApiVerb a)
 type instance AddSetCookieApi Raw = Raw
@@ -72,6 +75,15 @@ instance {-# OVERLAPS #-}
   => AddSetCookies ('S n) (a :<|> b) (a' :<|> b') where
   addSetCookies cookies (a :<|> b) = addSetCookies cookies a :<|> addSetCookies cookies b
 
+instance {-# OVERLAPS #-}
+  ( AddSetCookies ('S n) (ServerT (ToServantApi api) m) cookiedApi
+  , Generic (api (AsServerT m))
+  , GServantProduct (Rep (api (AsServerT m)))
+  , ToServant api (AsServerT m) ~ ServerT (ToServantApi api) m
+  )
+  => AddSetCookies ('S n) (api (AsServerT m)) cookiedApi where
+  addSetCookies cookies = addSetCookies cookies . toServant
+
 -- | for @servant <0.11@
 instance
   AddSetCookies ('S n) Application Application where

servant-auth/servant-auth-server/src/Servant/Auth/Server/Internal/ConfigTypes.hs

@@ -33,7 +33,7 @@ data JWTSettings = JWTSettings
   -- | Algorithm used to sign JWT.
   , jwtAlg          :: Maybe Jose.Alg
   -- | Keys used to validate JWT.
-  , validationKeys  :: Jose.JWKSet
+  , validationKeys  :: IO Jose.JWKSet
   -- | An @aud@ predicate. The @aud@ is a string or URI that identifies the
   -- intended recipient of the JWT.
   , audienceMatches :: Jose.StringOrURI -> IsMatch
@@ -44,7 +44,7 @@ defaultJWTSettings :: Jose.JWK -> JWTSettings
 defaultJWTSettings k = JWTSettings
    { signingKey = k
    , jwtAlg = Nothing
-   , validationKeys = Jose.JWKSet [k]
+   , validationKeys = pure $ Jose.JWKSet [k]
    , audienceMatches = const Matches }
 
 -- | The policies to use when generating cookies.

servant-auth/servant-auth-server/src/Servant/Auth/Server/Internal/Cookie.hs

@@ -2,6 +2,7 @@
 module Servant.Auth.Server.Internal.Cookie where
 
 import           Blaze.ByteString.Builder (toByteString)
+import           Control.Monad (MonadPlus(..), guard)
 import           Control.Monad.Except
 import           Control.Monad.Reader
 import qualified Crypto.JOSE              as Jose

servant-auth/servant-auth-server/src/Servant/Auth/Server/Internal/JWT.hs

@@ -1,18 +1,14 @@
 module Servant.Auth.Server.Internal.JWT where
 
 import           Control.Lens
-import           Control.Monad.Except
+import           Control.Monad (MonadPlus(..), guard)
 import           Control.Monad.Reader
 import qualified Crypto.JOSE          as Jose
 import qualified Crypto.JWT           as Jose
-import           Data.Aeson           (FromJSON, Result (..), ToJSON, fromJSON,
-                                       toJSON)
 import           Data.ByteArray       (constEq)
 import qualified Data.ByteString      as BS
 import qualified Data.ByteString.Lazy as BSL
-import qualified Data.HashMap.Strict  as HM
 import           Data.Maybe           (fromMaybe)
-import qualified Data.Text            as T
 import           Data.Time            (UTCTime)
 import           Network.Wai          (requestHeaders)
 
@@ -42,7 +38,7 @@ jwtAuthCheck jwtSettings = do
 -- token expires.
 makeJWT :: ToJWT a
   => a -> JWTSettings -> Maybe UTCTime -> IO (Either Jose.Error BSL.ByteString)
-makeJWT v cfg expiry = runExceptT $ do
+makeJWT v cfg expiry = Jose.runJOSE $ do
   bestAlg <- Jose.bestJWSAlg $ signingKey cfg
   let alg = fromMaybe bestAlg $ jwtAlg cfg
   ejwt <- Jose.signClaims (signingKey cfg)
@@ -58,14 +54,15 @@ makeJWT v cfg expiry = runExceptT $ do
 
 verifyJWT :: FromJWT a => JWTSettings -> BS.ByteString -> IO (Maybe a)
 verifyJWT jwtCfg input = do
-  verifiedJWT <- liftIO $ runExceptT $ do
+  keys <- validationKeys jwtCfg
+  verifiedJWT <- Jose.runJOSE $ do
     unverifiedJWT <- Jose.decodeCompact (BSL.fromStrict input)
     Jose.verifyClaims
       (jwtSettingsToJwtValidationSettings jwtCfg)
-      (validationKeys jwtCfg)
+      keys
       unverifiedJWT
   return $ case verifiedJWT of
     Left (_ :: Jose.JWTError) -> Nothing
     Right v -> case decodeJWT v of
       Left _ -> Nothing
-      Right v' -> Just v'
+      Right v' -> Just v'

servant-auth/servant-auth-server/src/Servant/Auth/Server/Internal/ThrowAll.hs

@@ -8,7 +8,10 @@ module Servant.Auth.Server.Internal.ThrowAll where
 
 import Control.Monad.Error.Class
 import Data.Tagged               (Tagged (..))
-import Servant                   ((:<|>) (..), ServerError(..))
+import Servant                   ((:<|>) (..), ServerError(..), NamedRoutes(..))
+import Servant.API.Generic
+import Servant.Server.Generic
+import Servant.Server
 import Network.HTTP.Types
 import Network.Wai
 
@@ -26,6 +29,12 @@ class ThrowAll a where
 instance (ThrowAll a, ThrowAll b) => ThrowAll (a :<|> b) where
   throwAll e = throwAll e :<|> throwAll e
 
+instance
+  ( ThrowAll (ToServant api (AsServerT m)) , GenericServant api (AsServerT m)) =>
+  ThrowAll (api (AsServerT m)) where
+
+  throwAll = fromServant . throwAll
+
 -- Really this shouldn't be necessary - ((->) a) should be an instance of
 -- MonadError, no?
 instance {-# OVERLAPPING #-} ThrowAll b => ThrowAll (a -> b) where

servant-auth/servant-auth-server/src/Servant/Auth/Server/Internal/Types.hs

@@ -2,6 +2,7 @@
 module Servant.Auth.Server.Internal.Types where
 
 import Control.Applicative
+import Control.Monad        (MonadPlus(..), ap)
 import Control.Monad.Reader
 import Control.Monad.Time
 import Data.Monoid          (Monoid (..))

servant-auth/servant-auth-server/test/Servant/Auth/ServerSpec.hs

@@ -6,13 +6,12 @@ module Servant.Auth.ServerSpec (spec) where
 #endif
 
 import           Control.Lens
-import           Control.Monad.Except                (runExceptT)
 import           Control.Monad.IO.Class              (liftIO)
 import           Crypto.JOSE                         (Alg (HS256, None), Error,
                                                       JWK, JWSHeader,
                                                       KeyMaterialGenParam (OctGenParam),
                                                       ToCompact, encodeCompact,
-                                                      genJWK, newJWSHeader)
+                                                      genJWK, newJWSHeader, runJOSE)
 import           Crypto.JWT                          (Audience (..), ClaimsSet,
                                                       NumericDate (NumericDate),
                                                       SignedJWT,
@@ -50,6 +49,7 @@ import           Network.Wreq                        (Options, auth, basicAuth,
 import           Network.Wreq.Types                  (Postable(..))
 import           Servant                             hiding (BasicAuth,
                                                       IsSecure (..), header)
+import           Servant.API.Generic                 ((:-))
 import           Servant.Auth.Server
 import           Servant.Auth.Server.Internal.Cookie (expireTime)
 import           Servant.Auth.Server.SetCookieOrphan ()
@@ -405,6 +405,7 @@ type API auths
     = Auth auths User :>
         ( Get '[JSON] Int
        :<|> ReqBody '[JSON] Int :> Post '[JSON] Int
+       :<|> NamedRoutes DummyRoutes
        :<|> "header" :> Get '[JSON] (Headers '[Header "Blah" Int] Int)
 #if MIN_VERSION_servant_server(0,15,0)
        :<|> "stream" :> StreamGet NoFraming OctetStream (SourceIO BS.ByteString)
@@ -416,6 +417,10 @@ type API auths
       :<|> "logout" :> Get '[JSON] (Headers '[ Header "Set-Cookie" SetCookie
                                              , Header "Set-Cookie" SetCookie ] NoContent)
 
+data DummyRoutes mode = DummyRoutes
+  { dummyInt :: mode :- "dummy" :> Get '[JSON] Int
+  } deriving Generic
+
 jwtOnlyApi :: Proxy (API '[Servant.Auth.Server.JWT])
 jwtOnlyApi = Proxy
 
@@ -476,6 +481,7 @@ server ccfg =
     (\authResult -> case authResult of
         Authenticated usr -> getInt usr
                         :<|> postInt usr
+                        :<|> DummyRoutes { dummyInt = getInt usr }
                         :<|> getHeaderInt
 #if MIN_VERSION_servant_server(0,15,0)
                         :<|> return (S.source ["bytestring"])
@@ -533,7 +539,7 @@ addJwtToHeader jwt = case jwt of
     $ defaults & header "Authorization" .~ ["Bearer " <> BSL.toStrict v]
 
 createJWT :: JWK -> JWSHeader () -> ClaimsSet -> IO (Either Error Crypto.JWT.SignedJWT)
-createJWT k a b = runExceptT $ signClaims k a b
+createJWT k a b = runJOSE $ signClaims k a b
 
 addJwtToCookie :: ToCompact a => CookieSettings -> Either Error a -> IO Options
 addJwtToCookie ccfg jwt = case jwt >>= (return . encodeCompact) of

servant-auth/servant-auth-swagger/servant-auth-swagger.cabal

@@ -1,3 +1,4 @@
+cabal-version:  2.2
 name:           servant-auth-swagger
 version:        0.2.10.1
 synopsis:       servant-swagger/servant-auth compatibility
@@ -6,9 +7,9 @@ description:    This package provides instances that allow generating swagger2 s
                 APIs that use
                 <https://hackage.haskell.org/package/servant-auth servant-auth's> @Auth@ combinator.
                 .
-                For a quick overview of the usage, see the <http://github.com/haskell-servant/servant/servant-auth#readme README>.
+                For a quick overview of the usage, see the <https://github.com/haskell-servant/servant/tree/master/servant-auth#readme README>.
 category:       Web, Servant, Authentication
-homepage:       http://github.com/haskell-servant/servant/servant-auth#readme
+homepage:       https://github.com/haskell-servant/servant/tree/master/servant-auth#readme
 bug-reports:    https://github.com/haskell-servant/servant/issues
 author:         Julian K. Arni
 maintainer:     jkarni@gmail.com
@@ -17,7 +18,6 @@ license:        BSD-3-Clause
 license-file:   LICENSE
 tested-with:    GHC ==8.6.5 || ==8.8.4 || ==8.10.4
 build-type:     Simple
-cabal-version:  >= 1.10
 extra-source-files:
     CHANGELOG.md
 
@@ -31,15 +31,13 @@ library
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
   build-depends:
-      base            >= 4.10    && < 4.16
+      base            >= 4.10    && < 4.18
-    , text            >= 1.2.3.0 && < 1.3
+    , text            >= 1.2.3.0 && < 2.1
-    , servant-swagger >= 1.1.5   && < 1.8
+    , servant-swagger >= 1.1.5   && < 2
-    , swagger2        >= 2.2.2   && < 2.7
+    , swagger2        >= 2.2.2   && < 3
-    , servant         >= 0.13    && < 0.19
+    , servant         >= 0.13    && < 0.20
     , servant-auth    == 0.4.*
-    , lens            >= 4.16.1  && < 5.1  
+    , lens            >= 4.16.1  && < 5.3
-  if impl(ghc >= 9)
-    buildable: False
   exposed-modules:
       Servant.Auth.Swagger
   default-language: Haskell2010
@@ -51,7 +49,7 @@ test-suite spec
       test
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
-  build-tool-depends: hspec-discover:hspec-discover >= 2.5.5 && <2.9
+  build-tool-depends: hspec-discover:hspec-discover >= 2.5.5 && <2.10
   -- dependencies with bounds inherited from the library stanza
   build-depends:
       base
@@ -61,13 +59,11 @@ test-suite spec
     , servant
     , servant-auth
     , lens
-  if impl(ghc >= 9)
+
-    buildable: False
-    
   -- test dependencies
   build-depends:
       servant-auth-swagger
-    , hspec      >= 2.5.5  && < 2.9
+    , hspec      >= 2.5.5  && < 2.10
     , QuickCheck >= 2.11.3 && < 2.15
   other-modules:
       Servant.Auth.SwaggerSpec

servant-auth/servant-auth/servant-auth.cabal

@@ -1,5 +1,6 @@
+cabal-version:  2.2
 name:           servant-auth
-version:        0.4.0.0
+version:        0.4.1.0
 synopsis:       Authentication combinators for servant
 description:    This package provides an @Auth@ combinator for 'servant'. This combinator
                 allows using different authentication schemes in a straightforward way,
@@ -8,9 +9,9 @@ description:    This package provides an @Auth@ combinator for 'servant'. This c
                 'servant-auth' additionally provides concrete authentication schemes, such
                 as Basic Access Authentication, JSON Web Tokens, and Cookies.
                 .
-                For more details on how to use this, see the <http://github.com/haskell-servant/servant/servant-auth#readme README>.
+                For more details on how to use this, see the <https://github.com/haskell-servant/servant/tree/master/servant-auth#readme README>.
 category:       Web, Servant, Authentication
-homepage:       http://github.com/haskell-servant/servant/servant-auth#readme
+homepage:       https://github.com/haskell-servant/servant/tree/master/servant-auth#readme
 bug-reports:    https://github.com/haskell-servant/servant/issues
 author:         Julian K. Arni
 maintainer:     jkarni@gmail.com
@@ -19,7 +20,6 @@ license:        BSD-3-Clause
 license-file:   LICENSE
 tested-with:    GHC ==8.6.5 || ==8.8.4 || ==8.10.4 || ==9.0.1
 build-type:     Simple
-cabal-version:  >= 1.10
 extra-source-files:
     CHANGELOG.md
 
@@ -33,12 +33,13 @@ library
   default-extensions: ConstraintKinds DataKinds DefaultSignatures DeriveFoldable DeriveFunctor DeriveGeneric DeriveTraversable FlexibleContexts FlexibleInstances FunctionalDependencies GADTs KindSignatures MultiParamTypeClasses OverloadedStrings RankNTypes ScopedTypeVariables TypeFamilies TypeOperators
   ghc-options: -Wall
   build-depends:
-      base                    >= 4.10     && < 4.16
+      base                    >= 4.10     && < 4.18
-    , aeson                   >= 1.3.1.1  && < 1.6
+    , containers              >= 0.6      && < 0.7
-    , jose                    >= 0.7.0.0  && < 0.9
+    , aeson                   >= 1.3.1.1  && < 3
-    , lens                    >= 4.16.1   && < 5.1
+    , jose                    >= 0.10     && < 0.11
-    , servant                 >= 0.15     && < 0.19
+    , lens                    >= 4.16.1   && < 5.3
-    , text                    >= 1.2.3.0  && < 1.3
+    , servant                 >= 0.15     && < 0.20
+    , text                    >= 1.2.3.0  && < 2.1
     , unordered-containers    >= 0.2.9.0  && < 0.3
   exposed-modules:
       Servant.Auth

servant-auth/servant-auth/src/Servant/Auth.hs

@@ -27,7 +27,7 @@ instance HasLink sub => HasLink (Auth (tag :: [*]) value :> sub) where
 
 -- ** Combinators
 
--- | A JSON Web Token (JWT) in the the Authorization header:
+-- | A JSON Web Token (JWT) in the Authorization header:
 --
 --    @Authorization: Bearer \<token\>@
 --

servant-auth/servant-auth/src/Servant/Auth/JWT.hs

@@ -1,10 +1,17 @@
+{-# LANGUAGE CPP #-}
+
 module Servant.Auth.JWT where
 
 import           Control.Lens         ((^.))
 import qualified Crypto.JWT           as Jose
 import           Data.Aeson           (FromJSON, Result (..), ToJSON, fromJSON,
                                        toJSON)
-import qualified Data.HashMap.Strict  as HM
+#if MIN_VERSION_aeson(2,0,0)                                                                                    
+import qualified Data.Map as KM                                                                        
+#else                                                                                                           
+import qualified Data.HashMap.Strict as KM                                                                      
+#endif
+
 import qualified Data.Text            as T
 
 
@@ -17,7 +24,7 @@ import qualified Data.Text            as T
 class FromJWT a where
   decodeJWT :: Jose.ClaimsSet -> Either T.Text a
   default decodeJWT :: FromJSON a => Jose.ClaimsSet -> Either T.Text a
-  decodeJWT m = case HM.lookup "dat" (m ^. Jose.unregisteredClaims) of
+  decodeJWT m = case KM.lookup "dat" (m ^. Jose.unregisteredClaims) of
     Nothing -> Left "Missing 'dat' claim"
     Just v  -> case fromJSON v of
       Error e -> Left $ T.pack e

servant-client-core/CHANGELOG.md

@@ -1,6 +1,37 @@
 [The latest version of this document is on GitHub.](https://github.com/haskell-servant/servant/blob/master/servant-client-core/CHANGELOG.md)
 [Changelog for `servant` package contains significant entries for all core packages.](https://github.com/haskell-servant/servant/blob/master/servant/CHANGELOG.md)
 
+Package versions follow the [Package Versioning Policy](https://pvp.haskell.org/): in A.B.C, bumps to either A or B represent major versions.
+
+0.19
+----
+
+### Significant changes
+
+- Drop support for GHC < 8.6.
+- Support GHC 9.0 (GHC 9.2 should work as well, but isn't fully tested yet).
+- Support Aeson 2 ([#1475](https://github.com/haskell-servant/servant/pull/1475)),
+  which fixes a [DOS vulnerability](https://github.com/haskell/aeson/issues/864)
+  related to hash collisions.
+- Add `NamedRoutes` combinator, making support for records first-class in Servant
+  ([#1388](https://github.com/haskell-servant/servant/pull/1388)).
+- Add custom type errors for partially applied combinators
+  ([#1289](https://github.com/haskell-servant/servant/pull/1289),
+  [#1486](https://github.com/haskell-servant/servant/pull/1486)).
+- *servant-client* / *servant-client-core* / *servant-http-streams*: Fix
+  erroneous behavior, where only 2XX status codes would be considered
+  successful, irrelevant of the status parameter specified by the verb
+  combinator. ([#1469](https://github.com/haskell-servant/servant/pull/1469))
+- *servant-client* / *servant-client-core*: Fix `Show` instance for
+  `Servant.Client.Core.Request`.
+- *servant-client* /  *servant-client-core*: Allow passing arbitrary binary data
+  in Query parameters.
+  ([#1432](https://github.com/haskell-servant/servant/pull/1432)).
+
+### Other changes
+
+- Various version bumps.
+
 0.18.3
 ------
 

servant-client-core/servant-client-core.cabal

@@ -1,6 +1,6 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-client-core
-version:             0.18.3
+version:             0.19
 
 synopsis:            Core functionality and class for client function generation for servant APIs
 category:            Servant, Web
@@ -50,14 +50,14 @@ library
   --
   -- note: mtl lower bound is so low because of GHC-7.8
   build-depends:
-      base                  >= 4.9      && < 4.16
+      base                  >= 4.9      && < 4.18
     , bytestring            >= 0.10.8.1 && < 0.12
     , constraints           >= 0.2      && < 0.14
     , containers            >= 0.5.7.1  && < 0.7
     , deepseq               >= 1.4.2.0  && < 1.5
-    , text                  >= 1.2.3.0  && < 1.3
+    , text                  >= 1.2.3.0  && < 2.1
-    , transformers          >= 0.5.2.0  && < 0.6
+    , transformers          >= 0.5.2.0  && < 0.7
-    , template-haskell      >= 2.11.1.0 && < 2.18
+    , template-haskell      >= 2.11.1.0 && < 2.20
 
   if !impl(ghc >= 8.2)
     build-depends:
@@ -65,13 +65,13 @@ library
 
   -- Servant dependencies
   build-depends:
-      servant            >= 0.18.3 && <0.19
+      servant            >= 0.19
 
   -- Other dependencies: Lower bound around what is in the latest Stackage LTS.
   -- Here can be exceptions if we really need features from the newer versions.
   build-depends:
-      aeson                 >= 1.4.1.0  && < 1.6
+      aeson                 >= 1.4.1.0  && < 3
-    , base-compat           >= 0.10.5   && < 0.12
+    , base-compat           >= 0.10.5   && < 0.13
     , base64-bytestring     >= 1.0.0.1  && < 1.3
     , exceptions            >= 0.10.0   && < 0.11
     , free                  >= 5.1      && < 5.2
@@ -104,8 +104,8 @@ test-suite spec
   -- Additional dependencies
   build-depends:
       deepseq    >= 1.4.2.0  && < 1.5
-    , hspec      >= 2.6.0    && < 2.9
+    , hspec      >= 2.6.0    && < 2.10
     , QuickCheck >= 2.12.6.1 && < 2.15
 
   build-tool-depends:
-    hspec-discover:hspec-discover >= 2.6.0 && <2.9
+    hspec-discover:hspec-discover >= 2.6.0 && <2.10

servant-client-core/src/Servant/Client/Core.hs

@@ -59,6 +59,7 @@ module Servant.Client.Core
   , appendToPath
   , setRequestBodyLBS
   , setRequestBody
+  , encodeQueryParamValue
   ) where
 import           Servant.Client.Core.Auth
 import           Servant.Client.Core.BaseUrl

servant-client-core/src/Servant/Client/Core/HasClient.hs

@@ -33,9 +33,7 @@ import           Control.Arrow
 import           Control.Monad
                  (unless)
 import qualified Data.ByteString as BS
-import           Data.ByteString.Builder
+import qualified Data.ByteString.Lazy as BL
-                 (toLazyByteString)
-import qualified Data.ByteString.Lazy                     as BL
 import           Data.Either
                  (partitionEithers)
 import           Data.Constraint (Dict(..))
@@ -65,7 +63,7 @@ import           Data.Text
 import           Data.Proxy
                  (Proxy (Proxy))
 import           GHC.TypeLits
-                 (KnownSymbol, symbolVal)
+                 (KnownNat, KnownSymbol, TypeError, symbolVal)
 import           Network.HTTP.Types
                  (Status)
 import qualified Network.HTTP.Types                       as H
@@ -79,16 +77,19 @@ import           Servant.API
                  NoContentVerb, QueryFlag, QueryParam', QueryParams, Raw,
                  ReflectMethod (..), RemoteHost, ReqBody', SBoolI, Stream,
                  StreamBody', Summary, ToHttpApiData, ToSourceIO (..), Vault,
-                 Verb, WithNamedContext, WithStatus (..), contentType, getHeadersHList,
+                 Verb, WithNamedContext, WithResource, WithStatus (..), contentType, getHeadersHList,
                  getResponse, toEncodedUrlPiece, toUrlPiece, NamedRoutes)
 import           Servant.API.Generic
                  (GenericMode(..), ToServant, ToServantApi
                  , GenericServant, toServant, fromServant)
 import           Servant.API.ContentTypes
                  (contentTypes, AllMime (allMime), AllMimeUnrender (allMimeUnrender))
+import           Servant.API.Status
+                 (statusFromNat)
 import           Servant.API.TypeLevel (FragmentUnique, AtLeastOneFragment)
 import           Servant.API.Modifiers
                  (FoldRequired, RequiredArgument, foldRequiredArgument)
+import           Servant.API.TypeErrors
 import           Servant.API.UVerb
                  (HasStatus, HasStatuses (Statuses, statuses), UVerb, Union, Unique, inject, statusOf, foldMapUnion, matchUnion)
 
@@ -207,7 +208,7 @@ instance (KnownSymbol capture, ToHttpApiData a, HasClient m api)
     clientWithRoute pm (Proxy :: Proxy api)
                     (appendToPath p req)
 
-    where p = (toUrlPiece val)
+    where p = toEncodedUrlPiece val
 
   hoistClientMonad pm _ f cl = \a ->
     hoistClientMonad pm (Proxy :: Proxy api) f (cl a)
@@ -242,7 +243,7 @@ instance (KnownSymbol capture, ToHttpApiData a, HasClient m sublayout)
     clientWithRoute pm (Proxy :: Proxy sublayout)
                     (foldl' (flip appendToPath) req ps)
 
-    where ps = map (toUrlPiece) vals
+    where ps = map toEncodedUrlPiece vals
 
   hoistClientMonad pm _ f cl = \as ->
     hoistClientMonad pm (Proxy :: Proxy sublayout) f (cl as)
@@ -250,10 +251,11 @@ instance (KnownSymbol capture, ToHttpApiData a, HasClient m sublayout)
 instance {-# OVERLAPPABLE #-}
   -- Note [Non-Empty Content Types]
   ( RunClient m, MimeUnrender ct a, ReflectMethod method, cts' ~ (ct ': cts)
+  , KnownNat status
   ) => HasClient m (Verb method status cts' a) where
   type Client m (Verb method status cts' a) = m a
   clientWithRoute _pm Proxy req = do
-    response <- runRequest req
+    response <- runRequestAcceptStatus (Just [status]) req
       { requestAccept = fromList $ toList accept
       , requestMethod = method
       }
@@ -261,18 +263,20 @@ instance {-# OVERLAPPABLE #-}
     where
       accept = contentTypes (Proxy :: Proxy ct)
       method = reflectMethod (Proxy :: Proxy method)
+      status = statusFromNat (Proxy :: Proxy status)
 
   hoistClientMonad _ _ f ma = f ma
 
 instance {-# OVERLAPPING #-}
-  ( RunClient m, ReflectMethod method
+  ( RunClient m, ReflectMethod method, KnownNat status
   ) => HasClient m (Verb method status cts NoContent) where
   type Client m (Verb method status cts NoContent)
     = m NoContent
   clientWithRoute _pm Proxy req = do
-    _response <- runRequest req { requestMethod = method }
+    _response <- runRequestAcceptStatus (Just [status]) req { requestMethod = method }
     return NoContent
       where method = reflectMethod (Proxy :: Proxy method)
+            status = statusFromNat (Proxy :: Proxy status)
 
   hoistClientMonad _ _ f ma = f ma
 
@@ -289,13 +293,13 @@ instance (RunClient m, ReflectMethod method) =>
 
 instance {-# OVERLAPPING #-}
   -- Note [Non-Empty Content Types]
-  ( RunClient m, MimeUnrender ct a, BuildHeadersTo ls
+  ( RunClient m, MimeUnrender ct a, BuildHeadersTo ls, KnownNat status
   , ReflectMethod method, cts' ~ (ct ': cts)
   ) => HasClient m (Verb method status cts' (Headers ls a)) where
   type Client m (Verb method status cts' (Headers ls a))
     = m (Headers ls a)
   clientWithRoute _pm Proxy req = do
-    response <- runRequest req
+    response <- runRequestAcceptStatus (Just [status]) req
        { requestMethod = method
        , requestAccept = fromList $ toList accept
        }
@@ -303,22 +307,26 @@ instance {-# OVERLAPPING #-}
     return $ Headers { getResponse = val
                      , getHeadersHList = buildHeadersTo . toList $ responseHeaders response
                      }
-      where method = reflectMethod (Proxy :: Proxy method)
+    where
-            accept = contentTypes (Proxy :: Proxy ct)
+      method = reflectMethod (Proxy :: Proxy method)
+      accept = contentTypes (Proxy :: Proxy ct)
+      status = statusFromNat (Proxy :: Proxy status)
 
   hoistClientMonad _ _ f ma = f ma
 
 instance {-# OVERLAPPING #-}
-  ( RunClient m, BuildHeadersTo ls, ReflectMethod method
+  ( RunClient m, BuildHeadersTo ls, ReflectMethod method, KnownNat status
   ) => HasClient m (Verb method status cts (Headers ls NoContent)) where
   type Client m (Verb method status cts (Headers ls NoContent))
     = m (Headers ls NoContent)
   clientWithRoute _pm Proxy req = do
-    let method = reflectMethod (Proxy :: Proxy method)
+    response <- runRequestAcceptStatus (Just [status]) req { requestMethod = method }
-    response <- runRequest req { requestMethod = method }
     return $ Headers { getResponse = NoContent
                      , getHeadersHList = buildHeadersTo . toList $ responseHeaders response
                      }
+    where
+      method = reflectMethod (Proxy :: Proxy method)
+      status = statusFromNat (Proxy :: Proxy status)
 
   hoistClientMonad _ _ f ma = f ma
 
@@ -561,7 +569,7 @@ instance (KnownSymbol sym, ToHttpApiData a, HasClient m api, SBoolI (FoldRequire
       (Proxy :: Proxy mods) add (maybe req add) mparam
     where
       add :: a -> Request
-      add param = appendToQueryString pname (Just $ encodeQueryParam param) req
+      add param = appendToQueryString pname (Just $ encodeQueryParamValue param) req
 
       pname :: Text
       pname  = pack $ symbolVal (Proxy :: Proxy sym)
@@ -569,9 +577,6 @@ instance (KnownSymbol sym, ToHttpApiData a, HasClient m api, SBoolI (FoldRequire
   hoistClientMonad pm _ f cl = \arg ->
     hoistClientMonad pm (Proxy :: Proxy api) f (cl arg)
 
-encodeQueryParam :: ToHttpApiData a => a  -> BS.ByteString
-encodeQueryParam = BL.toStrict . toLazyByteString . toEncodedUrlPiece
-
 -- | If you use a 'QueryParams' in one of your endpoints in your API,
 -- the corresponding querying function will automatically take
 -- an additional argument, a list of values of the type specified
@@ -613,7 +618,7 @@ instance (KnownSymbol sym, ToHttpApiData a, HasClient m api)
                     )
 
     where pname = pack $ symbolVal (Proxy :: Proxy sym)
-          paramlist' = map (Just . encodeQueryParam) paramlist
+          paramlist' = map (Just . encodeQueryParamValue) paramlist
 
   hoistClientMonad pm _ f cl = \as ->
     hoistClientMonad pm (Proxy :: Proxy api) f (cl as)
@@ -735,7 +740,7 @@ instance (KnownSymbol path, HasClient m api) => HasClient m (path :> api) where
      clientWithRoute pm (Proxy :: Proxy api)
                      (appendToPath p req)
 
-    where p = pack $ symbolVal (Proxy :: Proxy path)
+    where p = toEncodedUrlPiece $ pack $ symbolVal (Proxy :: Proxy path)
 
   hoistClientMonad pm _ f cl = hoistClientMonad pm (Proxy :: Proxy api) f cl
 
@@ -771,6 +776,14 @@ instance HasClient m subapi =>
 
   hoistClientMonad pm _ f cl = hoistClientMonad pm (Proxy :: Proxy subapi) f cl
 
+instance HasClient m subapi =>
+  HasClient m (WithResource res :> subapi) where
+
+  type Client m (WithResource res :> subapi) = Client m subapi
+  clientWithRoute pm Proxy = clientWithRoute pm (Proxy :: Proxy subapi)
+
+  hoistClientMonad pm _ f cl = hoistClientMonad pm (Proxy :: Proxy subapi) f cl
+
 instance ( HasClient m api
          ) => HasClient m (AuthProtect tag :> api) where
   type Client m (AuthProtect tag :> api)
@@ -784,7 +797,7 @@ instance ( HasClient m api
 
 -- | Ignore @'Fragment'@ in client functions.
 -- See <https://ietf.org/rfc/rfc2616.html#section-15.1.3> for more details.
--- 
+--
 -- Example:
 --
 -- > type MyApi = "books" :> Fragment Text :> Get '[JSON] [Book]
@@ -801,7 +814,7 @@ instance (AtLeastOneFragment api, FragmentUnique (Fragment a :> api), HasClient
 
   type Client m (Fragment a :> api) = Client m api
 
-  clientWithRoute pm _ = clientWithRoute pm (Proxy :: Proxy api) 
+  clientWithRoute pm _ = clientWithRoute pm (Proxy :: Proxy api)
 
   hoistClientMonad pm _ = hoistClientMonad pm (Proxy :: Proxy api)
 
@@ -869,7 +882,7 @@ infixl 2 /:
 --
 -- Example:
 --
--- @@
+-- @
 -- type Api = NamedRoutes RootApi
 --
 -- data RootApi mode = RootApi
@@ -889,8 +902,8 @@ infixl 2 /:
 -- rootClient = client api
 --
 -- endpointClient :: ClientM Person
--- endpointClient = client // subApi // endpoint
+-- endpointClient = client \/\/ subApi \/\/ endpoint
--- @@
+-- @
 (//) :: a -> (a -> b) -> b
 x // f = f x
 
@@ -901,7 +914,7 @@ x // f = f x
 --
 -- Example:
 --
--- @@
+-- @
 -- type Api = NamedRoutes RootApi
 --
 -- data RootApi mode = RootApi
@@ -922,11 +935,11 @@ x // f = f x
 -- rootClient = client api
 --
 -- hello :: String -> ClientM String
--- hello name = rootClient // hello /: name
+-- hello name = rootClient \/\/ hello \/: name
 --
 -- endpointClient :: ClientM Person
--- endpointClient = client // subApi /: "foobar123" // endpoint
+-- endpointClient = client \/\/ subApi \/: "foobar123" \/\/ endpoint
--- @@
+-- @
 (/:) :: (a -> b -> c) -> b -> a -> c
 (/:) = flip
 
@@ -970,3 +983,19 @@ decodedAs response ct = do
     Right val -> return val
   where
     accept = toList $ contentTypes ct
+
+-------------------------------------------------------------------------------
+-- Custom type errors
+-------------------------------------------------------------------------------
+
+-- Erroring instance for HasClient' when a combinator is not fully applied
+instance (RunClient m, TypeError (PartialApplication HasClient arr)) => HasClient m ((arr :: a -> b) :> sub)
+  where
+    type Client m (arr :> sub) = TypeError (PartialApplication HasClient arr)
+    clientWithRoute _ _ _ = error "unreachable"
+    hoistClientMonad _ _ _ _ = error "unreachable"
+
+-- Erroring instances for 'HasClient' for unknown API combinators
+instance {-# OVERLAPPABLE #-} (RunClient m, TypeError (NoInstanceForSub (HasClient m) ty)) => HasClient m (ty :> sub)
+
+instance {-# OVERLAPPABLE #-} (RunClient m, TypeError (NoInstanceFor (HasClient m api))) => HasClient m api

servant-client-core/src/Servant/Client/Core/Request.hs

@@ -17,6 +17,7 @@ module Servant.Client.Core.Request (
     addHeader,
     appendToPath,
     appendToQueryString,
+    encodeQueryParamValue,
     setRequestBody,
     setRequestBodyLBS,
     ) where
@@ -33,6 +34,8 @@ import           Data.Bifunctor
 import           Data.Bitraversable
                  (Bitraversable (..), bifoldMapDefault, bimapDefault)
 import qualified Data.ByteString                      as BS
+import           Data.ByteString.Builder
+                 (Builder)
 import qualified Data.ByteString.Builder              as Builder
 import qualified Data.ByteString.Lazy                 as LBS
 import qualified Data.Sequence                        as Seq
@@ -78,12 +81,13 @@ instance (Show a, Show b) =>
         . showString ", requestAccept = "
         . showsPrec 0 (requestAccept req)
         . showString ", requestHeaders = "
-        . showsPrec 0 (redactSensitiveHeader <$> requestHeaders req))
+        . showsPrec 0 (redactSensitiveHeader <$> requestHeaders req)
         . showString ", requestHttpVersion = "
         . showsPrec 0 (requestHttpVersion req)
         . showString ", requestMethod = "
         . showsPrec 0 (requestMethod req)
         . showString "}"
+        )
        where
         redactSensitiveHeader :: Header -> Header
         redactSensitiveHeader ("Authorization", _) = ("Authorization", "<REDACTED>")
@@ -110,7 +114,7 @@ instance (NFData path, NFData body) => NFData (RequestF body path) where
         rnfB Nothing        = ()
         rnfB (Just (b, mt)) = rnf b `seq` mediaTypeRnf mt
 
-type Request = RequestF RequestBody Builder.Builder
+type Request = RequestF RequestBody Builder
 
 -- | The request body. R replica of the @http-client@ @RequestBody@.
 data RequestBody
@@ -141,18 +145,30 @@ defaultRequest = Request
   , requestMethod = methodGet
   }
 
-appendToPath :: Text -> Request -> Request
+-- | Append extra path to the request being constructed.
+--
+-- Warning: This function assumes that the path fragment is already URL-encoded.
+appendToPath :: Builder -> Request -> Request
 appendToPath p req
-  = req { requestPath = requestPath req <> "/" <> toEncodedUrlPiece p }
+  = req { requestPath = requestPath req <> "/" <> p }
 
-appendToQueryString :: Text             -- ^ param name
+-- | Append a query parameter to the request being constructed.
-                    -> Maybe BS.ByteString -- ^ param value
+--
+appendToQueryString :: Text                -- ^ query param name
+                    -> Maybe BS.ByteString -- ^ query param value
                     -> Request
                     -> Request
 appendToQueryString pname pvalue req
   = req { requestQueryString = requestQueryString req
                         Seq.|> (encodeUtf8 pname, pvalue)}
 
+-- | Encode a query parameter value.
+--
+encodeQueryParamValue :: ToHttpApiData a => a  -> BS.ByteString
+encodeQueryParamValue = LBS.toStrict . Builder.toLazyByteString . toEncodedUrlPiece
+
+-- | Add header to the request being constructed.
+--
 addHeader :: ToHttpApiData a => HeaderName -> a -> Request -> Request
 addHeader name val req
   = req { requestHeaders = requestHeaders req Seq.|> (name, toHeader val)}

servant-client-core/test/Servant/Client/Core/RequestSpec.hs

@@ -10,10 +10,22 @@ import           Data.List (isInfixOf)
 import           Servant.Client.Core.Request
 import           Test.Hspec
 
+newtype DataWithRequest = DataWithRequest (RequestF RequestBody ())
+  deriving Show
+
 spec :: Spec
 spec = do
   describe "Request" $ do
     describe "show" $ do
+      it "has parenthesis correctly positioned" $ do
+        let d = DataWithRequest (void defaultRequest)
+        show d `shouldBe` "DataWithRequest (Request {requestPath = ()\
+                                                  \, requestQueryString = fromList []\
+                                                  \, requestBody = Nothing\
+                                                  \, requestAccept = fromList []\
+                                                  \, requestHeaders = fromList []\
+                                                  \, requestHttpVersion = HTTP/1.1\
+                                                  \, requestMethod = \"GET\"})"
       it "redacts the authorization header" $ do
         let request = void $ defaultRequest { requestHeaders = pure ("authorization", "secret") }
         isInfixOf "secret" (show request) `shouldBe` False

servant-client-ghcjs/servant-client-ghcjs.cabal

@@ -1,4 +1,4 @@
-cabal-version:      >=1.10
+cabal-version:      2.2
 name:               servant-client-ghcjs
 version:            0.16
 synopsis:
@@ -38,7 +38,7 @@ library
     Servant.Client.Internal.XhrClient
 
   build-depends:
-      base                >=4.11    && <4.12
+      base                >=4.11    && <5
     , bytestring          >=0.10    && <0.12
     , case-insensitive    >=1.2.0.0 && <1.3.0.0
     , containers          >=0.5     && <0.7
@@ -48,7 +48,7 @@ library
     , http-media          >=0.6.2   && <0.9
     , http-types          >=0.12    && <0.13
     , monad-control       >=1.0.0.4 && <1.1
-    , mtl                 >=2.2.2   && <2.3
+    , mtl                 ^>=2.2.2  || ^>=2.3.1
     , semigroupoids       >=5.3     && <5.4
     , string-conversions  >=0.3     && <0.5
     , transformers        >=0.3     && <0.6
@@ -56,8 +56,8 @@ library
 
   -- strict, as we re-export stuff
   build-depends:
-      servant              >=0.16 && <0.17
+      servant              >=0.16 && <0.20
-    , servant-client-core  >=0.16 && <0.16.1
+    , servant-client-core  >=0.16 && <0.20
 
   hs-source-dirs:   src
   default-language: Haskell2010

servant-client-ghcjs/src/Servant/Client/Internal/XhrClient.hs

@@ -120,7 +120,7 @@ instance Exception StreamingNotSupportedException where
   displayException _ = "streamingRequest: streaming is not supported!"
 
 instance RunClient ClientM where
-  runRequest = performRequest
+  runRequestAcceptStatus = performRequest
   throwClientError = throwError
 
 runClientMOrigin :: ClientM a -> ClientEnv -> IO (Either ClientError a)
@@ -152,15 +152,18 @@ runClientM m = do
 
     runClientMOrigin m (ClientEnv (BaseUrl protocol hostname port ""))
 
-performRequest :: Request -> ClientM Response
+performRequest :: Maybe [Status] -> Request -> ClientM Response
-performRequest req = do
+performRequest acceptStatus req = do
   xhr <- liftIO initXhr
   burl <- asks baseUrl
   liftIO $ performXhr xhr burl req
   resp <- toResponse xhr
 
-  let status = statusCode (responseStatusCode resp)
+  let status = responseStatusCode resp
-  unless (status >= 200 && status < 300) $ do
+      goodStatus = case acceptStatus of
+        Nothing -> statusIsSuccessful status
+        Just good -> status `elem` good
+  unless goodStatus $ do
     let f b = (burl, BL.toStrict $ toLazyByteString b)
     throwError $ FailureResponse (bimap (const ()) f req) resp
 

servant-client/CHANGELOG.md

@@ -1,6 +1,37 @@
 [The latest version of this document is on GitHub.](https://github.com/haskell-servant/servant/blob/master/servant-client/CHANGELOG.md)
 [Changelog for `servant` package contains significant entries for all core packages.](https://github.com/haskell-servant/servant/blob/master/servant/CHANGELOG.md)
 
+Package versions follow the [Package Versioning Policy](https://pvp.haskell.org/): in A.B.C, bumps to either A or B represent major versions.
+
+0.19
+----
+
+### Significant changes
+
+- Drop support for GHC < 8.6.
+- Support GHC 9.0 (GHC 9.2 should work as well, but isn't fully tested yet).
+- Support Aeson 2 ([#1475](https://github.com/haskell-servant/servant/pull/1475)),
+  which fixes a [DOS vulnerability](https://github.com/haskell/aeson/issues/864)
+  related to hash collisions.
+- Add `NamedRoutes` combinator, making support for records first-class in Servant
+  ([#1388](https://github.com/haskell-servant/servant/pull/1388)).
+- Add custom type errors for partially applied combinators
+  ([#1289](https://github.com/haskell-servant/servant/pull/1289),
+  [#1486](https://github.com/haskell-servant/servant/pull/1486)).
+- *servant-client* / *servant-client-core* / *servant-http-streams*: Fix
+  erroneous behavior, where only 2XX status codes would be considered
+  successful, irrelevant of the status parameter specified by the verb
+  combinator. ([#1469](https://github.com/haskell-servant/servant/pull/1469))
+- *servant-client* / *servant-client-core*: Fix `Show` instance for
+  `Servant.Client.Core.Request`.
+- *servant-client* /  *servant-client-core*: Allow passing arbitrary binary data
+  in Query parameters.
+  ([#1432](https://github.com/haskell-servant/servant/pull/1432)).
+
+### Other changes
+
+- Various version bumps.
+
 0.18.3
 ------
 

servant-client/servant-client.cabal

@@ -1,6 +1,6 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-client
-version:             0.18.3
+version:             0.19
 
 synopsis:            Automatic derivation of querying functions for servant
 category:            Servant, Web
@@ -41,15 +41,15 @@ library
   -- Bundled with GHC: Lower bound to not force re-installs
   -- text and mtl are bundled starting with GHC-8.4
   build-depends:
-      base                  >= 4.9      && < 4.16
+      base                  >= 4.9      && < 4.18
     , bytestring            >= 0.10.8.1 && < 0.12
     , containers            >= 0.5.7.1  && < 0.7
     , deepseq               >= 1.4.2.0  && < 1.5
-    , mtl                   >= 2.2.2    && < 2.3
+    , mtl                   ^>= 2.2.2   || ^>= 2.3.1
     , stm                   >= 2.4.5.1  && < 2.6
-    , text                  >= 1.2.3.0  && < 1.3
+    , text                  >= 1.2.3.0  && < 2.1
-    , time                  >= 1.6.0.1  && < 1.10
+    , time                  >= 1.6.0.1  && < 1.13
-    , transformers          >= 0.5.2.0  && < 0.6
+    , transformers          >= 0.5.2.0  && < 0.7
 
   if !impl(ghc >= 8.2)
     build-depends:
@@ -58,13 +58,13 @@ library
   -- Servant dependencies.
   -- Strict dependency on `servant-client-core` as we re-export things.
   build-depends:
-      servant               == 0.18.*
+      servant               >= 0.18 && < 0.20
-    , servant-client-core   >= 0.18.3 && <0.18.4
+    , servant-client-core   >= 0.19 && < 0.19.1
 
   -- Other dependencies: Lower bound around what is in the latest Stackage LTS.
   -- Here can be exceptions if we really need features from the newer versions.
   build-depends:
-      base-compat           >= 0.10.5   && < 0.12
+      base-compat           >= 0.10.5   && < 0.13
     , http-client           >= 0.5.13.1 && < 0.8
     , http-media            >= 0.7.1.3  && < 0.9
     , http-types            >= 0.12.2   && < 0.13
@@ -89,6 +89,7 @@ test-suite spec
   main-is: Spec.hs
   other-modules:
       Servant.BasicAuthSpec
+      Servant.BrokenSpec
       Servant.ClientTestUtils
       Servant.ConnectionErrorSpec
       Servant.FailSpec
@@ -123,16 +124,16 @@ test-suite spec
   -- Additional dependencies
   build-depends:
       entropy           >= 0.4.1.3  && < 0.5
-    , hspec             >= 2.6.0    && < 2.9
+    , hspec             >= 2.6.0    && < 2.10
     , HUnit             >= 1.6.0.0  && < 1.7
     , network           >= 2.8.0.0  && < 3.2
     , QuickCheck        >= 2.12.6.1 && < 2.15
-    , servant           == 0.18.*
+    , servant           == 0.19.*
-    , servant-server    == 0.18.*
+    , servant-server    == 0.19.*
     , tdigest           >= 0.2     && < 0.3
 
   build-tool-depends:
-    hspec-discover:hspec-discover >= 2.6.0 && < 2.9
+    hspec-discover:hspec-discover >= 2.6.0 && < 2.10
 
 test-suite readme
   type:           exitcode-stdio-1.0

servant-client/src/Servant/Client/Internal/HttpClient.hs

@@ -24,7 +24,7 @@ import           Control.Monad
 import           Control.Monad.Base
                  (MonadBase (..))
 import           Control.Monad.Catch
-                 (MonadCatch, MonadThrow)
+                 (MonadCatch, MonadThrow, MonadMask)
 import           Control.Monad.Error.Class
                  (MonadError (..))
 import           Control.Monad.IO.Class
@@ -63,7 +63,7 @@ import           GHC.Generics
 import           Network.HTTP.Media
                  (renderHeader)
 import           Network.HTTP.Types
-                 (hContentType, renderQuery, statusCode, urlEncode, Status)
+                 (hContentType, renderQuery, statusIsSuccessful, urlEncode, Status)
 import           Servant.Client.Core
 
 import qualified Network.HTTP.Client         as Client
@@ -80,7 +80,7 @@ data ClientEnv
   { manager :: Client.Manager
   , baseUrl :: BaseUrl
   , cookieJar :: Maybe (TVar Client.CookieJar)
-  , makeClientRequest :: BaseUrl -> Request -> Client.Request
+  , makeClientRequest :: BaseUrl -> Request -> IO Client.Request
   -- ^ this function can be used to customize the creation of @http-client@ requests from @servant@ requests. Default value: 'defaultMakeClientRequest'
   --   Note that:
   --      1. 'makeClientRequest' exists to allow overriding operational semantics e.g. 'responseTimeout' per request,
@@ -136,7 +136,7 @@ newtype ClientM a = ClientM
   { unClientM :: ReaderT ClientEnv (ExceptT ClientError IO) a }
   deriving ( Functor, Applicative, Monad, MonadIO, Generic
            , MonadReader ClientEnv, MonadError ClientError, MonadThrow
-           , MonadCatch)
+           , MonadCatch, MonadMask)
 
 instance MonadBase IO ClientM where
   liftBase = ClientM . liftBase
@@ -162,7 +162,7 @@ runClientM cm env = runExceptT $ flip runReaderT env $ unClientM cm
 performRequest :: Maybe [Status] -> Request -> ClientM Response
 performRequest acceptStatus req = do
   ClientEnv m burl cookieJar' createClientRequest <- ask
-  let clientRequest = createClientRequest burl req
+  clientRequest <- liftIO $ createClientRequest burl req
   request <- case cookieJar' of
     Nothing -> pure clientRequest
     Just cj -> liftIO $ do
@@ -179,10 +179,9 @@ performRequest acceptStatus req = do
 
   response <- maybe (requestWithoutCookieJar m request) (requestWithCookieJar m request) cookieJar'
   let status = Client.responseStatus response
-      status_code = statusCode status
       ourResponse = clientResponseToResponse id response
       goodStatus = case acceptStatus of
-        Nothing -> status_code >= 200 && status_code < 300
+        Nothing -> statusIsSuccessful status
         Just good -> status `elem` good
   unless goodStatus $ do
     throwError $ mkFailureResponse burl req ourResponse
@@ -230,8 +229,8 @@ clientResponseToResponse f r = Response
 -- | Create a @http-client@ 'Client.Request' from a @servant@ 'Request'
 --    The 'Client.host', 'Client.path' and 'Client.port' fields are extracted from the 'BaseUrl'
 --    otherwise the body, headers and query string are derived from the @servant@ 'Request'
-defaultMakeClientRequest :: BaseUrl -> Request -> Client.Request
+defaultMakeClientRequest :: BaseUrl -> Request -> IO Client.Request
-defaultMakeClientRequest burl r = Client.defaultRequest
+defaultMakeClientRequest burl r = return Client.defaultRequest
     { Client.method = requestMethod r
     , Client.host = fromString $ baseUrlHost burl
     , Client.port = baseUrlPort burl
@@ -247,7 +246,7 @@ defaultMakeClientRequest burl r = Client.defaultRequest
   where
     -- Content-Type and Accept are specified by requestBody and requestAccept
     headers = filter (\(h, _) -> h /= "Accept" && h /= "Content-Type") $
-        toList $requestHeaders r
+        toList $ requestHeaders r
 
     acceptHdr
         | null hs   = Nothing
@@ -290,7 +289,8 @@ defaultMakeClientRequest burl r = Client.defaultRequest
         Https -> True
 
     -- Query string builder which does not do any encoding
-    buildQueryString = ("?" <>) . foldl' addQueryParam mempty
+    buildQueryString [] = mempty
+    buildQueryString qps = "?" <> foldl' addQueryParam mempty qps
 
     addQueryParam qs (k, v) =
           qs <> (if BS.null qs then mempty else "&") <> urlEncode True k <> foldMap ("=" <>) v

servant-client/src/Servant/Client/Internal/HttpClient/Streaming.hs

@@ -24,7 +24,8 @@ import           Control.DeepSeq
                  (NFData, force)
 import           Control.Exception
                  (evaluate, throwIO)
-import           Control.Monad ()
+import           Control.Monad
+                 (unless)
 import           Control.Monad.Base
                  (MonadBase (..))
 import           Control.Monad.Codensity
@@ -47,7 +48,7 @@ import           Data.Time.Clock
                  (getCurrentTime)
 import           GHC.Generics
 import           Network.HTTP.Types
-                 (Status, statusCode)
+                 (Status, statusIsSuccessful)
 
 import qualified Network.HTTP.Client                as Client
 
@@ -140,7 +141,7 @@ performRequest :: Maybe [Status] -> Request -> ClientM Response
 performRequest acceptStatus req = do
     -- TODO: should use Client.withResponse here too
   ClientEnv m burl cookieJar' createClientRequest <- ask
-  let clientRequest = createClientRequest burl req
+  clientRequest <- liftIO $ createClientRequest burl req
   request <- case cookieJar' of
     Nothing -> pure clientRequest
     Just cj -> liftIO $ do
@@ -163,10 +164,9 @@ performRequest acceptStatus req = do
         now' <- getCurrentTime
         atomically $ modifyTVar' cj (fst . Client.updateCookieJar response request now')
       let status = Client.responseStatus response
-          status_code = statusCode status
           ourResponse = clientResponseToResponse id response
           goodStatus = case acceptStatus of
-            Nothing -> status_code >= 200 && status_code < 300
+            Nothing -> statusIsSuccessful status
             Just good -> status `elem` good
       unless goodStatus $ do
         throwError $ mkFailureResponse burl req ourResponse
@@ -175,17 +175,27 @@ performRequest acceptStatus req = do
 -- | TODO: support UVerb ('acceptStatus' argument, like in 'performRequest' above).
 performWithStreamingRequest :: Request -> (StreamingResponse -> IO a) -> ClientM a
 performWithStreamingRequest req k = do
-  m <- asks manager
+  ClientEnv m burl cookieJar' createClientRequest <- ask
-  burl <- asks baseUrl
+  clientRequest <- liftIO $ createClientRequest burl req
-  createClientRequest <- asks makeClientRequest
+  request <- case cookieJar' of
-  let request = createClientRequest burl req
+    Nothing -> pure clientRequest
+    Just cj -> liftIO $ do
+      now <- getCurrentTime
+      atomically $ do
+        oldCookieJar <- readTVar cj
+        let (newRequest, newCookieJar) =
+              Client.insertCookiesIntoRequest
+                clientRequest
+                oldCookieJar
+                now
+        writeTVar cj newCookieJar
+        pure newRequest
   ClientM $ lift $ lift $ Codensity $ \k1 ->
       Client.withResponse request m $ \res -> do
           let status = Client.responseStatus res
-              status_code = statusCode status
 
           -- we throw FailureResponse in IO :(
-          unless (status_code >= 200 && status_code < 300) $ do
+          unless (statusIsSuccessful status) $ do
               b <- BSL.fromChunks <$> Client.brConsume (Client.responseBody res)
               throwIO $ mkFailureResponse burl req (clientResponseToResponse (const b) res)
 

servant-client/test/Servant/BrokenSpec.hs

@@ -0,0 +1,71 @@
+{-# LANGUAGE DataKinds                   #-}
+{-# LANGUAGE TypeOperators               #-}
+{-# OPTIONS_GHC -freduction-depth=100    #-}
+{-# OPTIONS_GHC -fno-warn-orphans        #-}
+{-# OPTIONS_GHC -fno-warn-name-shadowing #-}
+
+module Servant.BrokenSpec (spec) where
+
+import           Prelude ()
+import           Prelude.Compat
+
+import           Data.Monoid ()
+import           Data.Proxy
+import qualified Network.HTTP.Types as HTTP
+import           Test.Hspec
+
+import           Servant.API
+                 ((:<|>) ((:<|>)), (:>), JSON, Verb, Get, StdMethod (GET))
+import           Servant.Client
+import           Servant.ClientTestUtils
+import           Servant.Server
+
+-- * api for testing inconsistencies between client and server
+
+type Get201 = Verb 'GET 201
+type Get301 = Verb 'GET 301
+
+type BrokenAPI =
+  -- the server should respond with 200, but returns 201
+       "get200" :> Get201 '[JSON] ()
+  -- the server should respond with 307, but returns 301
+  :<|> "get307" :> Get301 '[JSON] ()
+
+brokenApi :: Proxy BrokenAPI
+brokenApi = Proxy
+
+brokenServer :: Application
+brokenServer = serve brokenApi (pure () :<|> pure ())
+
+type PublicAPI =
+  -- the client expects 200
+       "get200" :> Get '[JSON] ()
+  -- the client expects 307
+  :<|> "get307" :> Get307 '[JSON] ()
+
+publicApi :: Proxy PublicAPI
+publicApi = Proxy
+
+get200Client :: ClientM ()
+get307Client :: ClientM ()
+get200Client :<|> get307Client = client publicApi
+
+
+spec :: Spec
+spec = describe "Servant.BrokenSpec" $ do
+    brokenSpec
+
+brokenSpec :: Spec
+brokenSpec = beforeAll (startWaiApp brokenServer) $ afterAll endWaiApp $ do
+    context "client returns errors for inconsistencies between client and server api" $ do
+      it "reports FailureResponse with wrong 2xx status code" $ \(_, baseUrl) -> do
+        res <- runClient get200Client baseUrl
+        case res of
+          Left (FailureResponse _ r) | responseStatusCode r == HTTP.status201 -> return ()
+          _ -> fail $ "expected 201 broken response, but got " <> show res
+
+      it "reports FailureResponse with wrong 3xx status code" $ \(_, baseUrl) -> do
+        res <- runClient get307Client baseUrl
+        case res of
+          Left (FailureResponse _ r) | responseStatusCode r == HTTP.status301 -> return ()
+          _ -> fail $ "expected 301 broken response, but got " <> show res

servant-client/test/Servant/ClientTestUtils.hs

@@ -64,7 +64,7 @@ import           Servant.API
                  JSON, MimeRender (mimeRender), MimeUnrender (mimeUnrender),
                  NoContent (NoContent), PlainText, Post, QueryFlag, QueryParam,
                  QueryParams, Raw, ReqBody, StdMethod (GET), ToHttpApiData (..), UVerb, Union,
-                 WithStatus (WithStatus), NamedRoutes, addHeader)
+                 Verb, WithStatus (WithStatus), NamedRoutes, addHeader)
 import           Servant.API.Generic ((:-))
 import           Servant.Client
 import qualified Servant.Client.Core.Auth         as Auth
@@ -118,9 +118,16 @@ data OtherRoutes mode = OtherRoutes
   { something :: mode :- "something" :> Get '[JSON] [String]
   } deriving Generic
 
+-- Get for HTTP 307 Temporary Redirect
+type Get307 = Verb 'GET 307
+
 type Api =
   Get '[JSON] Person
   :<|> "get" :> Get '[JSON] Person
+  -- This endpoint returns a response with status code 307 Temporary Redirect,
+  -- different from the ones in the 2xx successful class, to test derivation
+  -- of clients' api.
+  :<|> "get307" :> Get307 '[PlainText] Text
   :<|> "deleteEmpty" :> DeleteNoContent
   :<|> "capture" :> Capture "name" String :> Get '[JSON,FormUrlEncoded] Person
   :<|> "captureAll" :> CaptureAll "names" String :> Get '[JSON] [Person]
@@ -153,13 +160,14 @@ type Api =
                                       WithStatus 301 Text]
   :<|> "uverb-get-created" :> UVerb 'GET '[PlainText] '[WithStatus 201 Person]
   :<|> NamedRoutes RecordRoutes
-
+  :<|> "captureVerbatim" :> Capture "someString" Verbatim :> Get '[PlainText] Text
 
 api :: Proxy Api
 api = Proxy
 
 getRoot         :: ClientM Person
 getGet          :: ClientM Person
+getGet307       :: ClientM Text
 getDeleteEmpty  :: ClientM NoContent
 getCapture      :: String -> ClientM Person
 getCaptureAll   :: [String] -> ClientM [Person]
@@ -186,6 +194,7 @@ recordRoutes :: RecordRoutes (AsClientT ClientM)
 
 getRoot
   :<|> getGet
+  :<|> getGet307
   :<|> getDeleteEmpty
   :<|> getCapture
   :<|> getCaptureAll
@@ -206,12 +215,14 @@ getRoot
   :<|> EmptyClient
   :<|> uverbGetSuccessOrRedirect
   :<|> uverbGetCreated
-  :<|> recordRoutes = client api
+  :<|> recordRoutes
+  :<|> captureVerbatim = client api
 
 server :: Application
 server = serve api (
        return carol
   :<|> return alice
+  :<|> return "redirecting"
   :<|> return NoContent
   :<|> (\ name -> return $ Person name 0)
   :<|> (\ names -> return (zipWith Person names [0..]))
@@ -250,8 +261,11 @@ server = serve api (
              { something = pure ["foo", "bar", "pweet"]
              }
          }
+  :<|> pure . decodeUtf8 . unVerbatim
   )
 
+-- * api for testing failures
+
 type FailApi =
        "get" :> Raw
   :<|> "capture" :> Capture "name" String :> Raw
@@ -266,7 +280,7 @@ failServer = serve failApi (
   :<|> (\ _capture -> Tagged $ \_request respond -> respond $ Wai.responseLBS HTTP.ok200 [("content-type", "application/json")] "")
   :<|> (Tagged $ \_request respond -> respond $ Wai.responseLBS HTTP.ok200 [("content-type", "fooooo")] "")
   :<|> (Tagged $ \_request respond -> respond $ Wai.responseLBS HTTP.ok200 [("content-type", "application/x-www-form-urlencoded"), ("X-Example1", "1"), ("X-Example2", "foo")] "")
- )
+  )
 
 -- * basic auth stuff
 
@@ -359,3 +373,12 @@ instance ToHttpApiData UrlEncodedByteString where
 
 instance FromHttpApiData UrlEncodedByteString where
     parseUrlPiece = pure . UrlEncodedByteString . HTTP.urlDecode True . encodeUtf8
+
+newtype Verbatim = Verbatim { unVerbatim :: ByteString }
+
+instance ToHttpApiData Verbatim where
+    toEncodedUrlPiece = byteString . unVerbatim
+    toUrlPiece = decodeUtf8 . unVerbatim
+
+instance FromHttpApiData Verbatim where
+    parseUrlPiece = pure . Verbatim . encodeUtf8

servant-client/test/Servant/FailSpec.hs

@@ -38,14 +38,14 @@ failSpec = beforeAll (startWaiApp failServer) $ afterAll endWaiApp $ do
 
     context "client returns errors appropriately" $ do
       it "reports FailureResponse" $ \(_, baseUrl) -> do
-        let (_ :<|> _ :<|> getDeleteEmpty :<|> _) = client api
+        let (_ :<|> _ :<|> _ :<|> getDeleteEmpty :<|> _) = client api
         Left res <- runClient getDeleteEmpty baseUrl
         case res of
           FailureResponse _ r | responseStatusCode r == HTTP.status404 -> return ()
           _ -> fail $ "expected 404 response, but got " <> show res
 
       it "reports DecodeFailure" $ \(_, baseUrl) -> do
-        let (_ :<|> _ :<|> _ :<|> getCapture :<|> _) = client api
+        let (_ :<|> _ :<|> _ :<|> _ :<|> getCapture :<|> _) = client api
         Left res <- runClient (getCapture "foo") baseUrl
         case res of
           DecodeFailure _ _ -> return ()
@@ -72,7 +72,7 @@ failSpec = beforeAll (startWaiApp failServer) $ afterAll endWaiApp $ do
           _ -> fail $ "expected UnsupportedContentType, but got " <> show res
 
       it "reports InvalidContentTypeHeader" $ \(_, baseUrl) -> do
-        let (_ :<|> _ :<|> _ :<|> _ :<|> _ :<|> getBody :<|> _) = client api
+        let (_ :<|> _ :<|> _ :<|> _ :<|> _ :<|> _ :<|> getBody :<|> _) = client api
         Left res <- runClient (getBody alice) baseUrl
         case res of
           InvalidContentTypeHeader _ -> return ()

servant-client/test/Servant/SuccessSpec.hs

@@ -36,6 +36,8 @@ import           Data.Maybe
 import           Data.Monoid ()
 import           Data.Text
                  (Text)
+import           Data.Text.Encoding
+                 (encodeUtf8)
 import qualified Network.HTTP.Client                as C
 import qualified Network.HTTP.Types                 as HTTP
 import           Test.Hspec
@@ -59,11 +61,15 @@ spec = describe "Servant.SuccessSpec" $ do
 
 successSpec :: Spec
 successSpec = beforeAll (startWaiApp server) $ afterAll endWaiApp $ do
-    it "Servant.API.Get root" $ \(_, baseUrl) -> do
+    describe "Servant.API.Get" $ do
-      left show <$> runClient getRoot baseUrl  `shouldReturn` Right carol
+      it "get root endpoint" $ \(_, baseUrl) -> do
+        left show <$> runClient getRoot baseUrl  `shouldReturn` Right carol
 
-    it "Servant.API.Get" $ \(_, baseUrl) -> do
+      it "get simple endpoint" $ \(_, baseUrl) -> do
-      left show <$> runClient getGet baseUrl  `shouldReturn` Right alice
+        left show <$> runClient getGet baseUrl  `shouldReturn` Right alice
+
+      it "get redirection endpoint" $ \(_, baseUrl) -> do
+        left show <$> runClient getGet307 baseUrl `shouldReturn` Right "redirecting"
 
     describe "Servant.API.Delete" $ do
       it "allows empty content type" $ \(_, baseUrl) -> do
@@ -111,6 +117,7 @@ successSpec = beforeAll (startWaiApp server) $ afterAll endWaiApp $ do
 
     it "Servant.API.Fragment" $ \(_, baseUrl) -> do
       left id <$> runClient getFragment baseUrl `shouldReturn` Right alice
+
     it "Servant.API.Raw on success" $ \(_, baseUrl) -> do
       res <- runClient (getRawSuccess HTTP.methodGet) baseUrl
       case res of
@@ -155,8 +162,9 @@ successSpec = beforeAll (startWaiApp server) $ afterAll endWaiApp $ do
       mgr <- C.newManager C.defaultManagerSettings
       -- In proper situation, extra headers should probably be visible in API type.
       -- However, testing for response timeout is difficult, so we test with something which is easy to observe
-      let createClientRequest url r = (defaultMakeClientRequest url r) { C.requestHeaders = [("X-Added-Header", "XXX")] }
+      let createClientRequest url r = fmap (\req -> req { C.requestHeaders = [("X-Added-Header", "XXX")] })
-      let clientEnv = (mkClientEnv mgr baseUrl) { makeClientRequest = createClientRequest }
+                                           (defaultMakeClientRequest url r)
+          clientEnv = (mkClientEnv mgr baseUrl) { makeClientRequest = createClientRequest }
       res <- runClientM (getRawSuccessPassHeaders HTTP.methodGet) clientEnv
       case res of
         Left e ->
@@ -191,3 +199,10 @@ successSpec = beforeAll (startWaiApp server) $ afterAll endWaiApp $ do
         case eitherResponse of
           Left clientError -> fail $ show clientError
           Right response -> matchUnion response `shouldBe` Just (WithStatus @201 carol)
+
+    it "encodes URL pieces following ToHttpApiData instance" $ \(_, baseUrl) -> do
+      let textOrig = "*"
+      eitherResponse <- runClient (captureVerbatim $ Verbatim $ encodeUtf8 textOrig) baseUrl
+      case eitherResponse of
+        Left clientError -> fail $ show clientError
+        Right textBack -> textBack `shouldBe` textOrig

servant-conduit/servant-conduit.cabal

@@ -1,4 +1,4 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-conduit
 version:             0.15.1
 
@@ -23,7 +23,7 @@ extra-source-files:
 
 source-repository head
   type: git
-  location: http://github.com/haskell-servant/servant-conduit.git
+  location: http://github.com/haskell-servant/servant.git
 
 library
   exposed-modules:     Servant.Conduit
@@ -31,9 +31,9 @@ library
       base          >=4.9      && <5
     , bytestring    >=0.10.8.1 && <0.12
     , conduit       >=1.3.1    && <1.4
-    , mtl           >=2.2.2    && <2.3
+    , mtl           ^>=2.2.2   || ^>=2.3.1
-    , resourcet     >=1.2.2    && <1.3
+    , resourcet     >=1.2.2    && <1.4
-    , servant       >=0.15     && <0.19
+    , servant       >=0.15     && <0.20
     , unliftio-core >=0.1.2.0  && <0.3
   hs-source-dirs:      src
   default-language:    Haskell2010
@@ -54,8 +54,8 @@ test-suite example
     , resourcet
     , servant
     , servant-conduit
-    , servant-server >=0.15     && <0.19
+    , servant-server >=0.15     && <0.20
-    , servant-client >=0.15     && <0.19
+    , servant-client >=0.15     && <0.20
     , wai            >=3.2.1.2  && <3.3
     , warp           >=3.2.25   && <3.4
     , http-client

servant-docs/CHANGELOG.md

@@ -1,6 +1,15 @@
 [The latest version of this document is on GitHub.](https://github.com/haskell-servant/servant/blob/master/servant-docs/CHANGELOG.md)
 [Changelog for `servant` package contains significant entries for all core packages.](https://github.com/haskell-servant/servant/blob/master/servant/CHANGELOG.md)
 
+0.12
+----
+
+### Significant changes
+
+- Generate sample cURL requests
+  ([#1401](https://github.com/haskell-servant/servant/pull/1401/files)).
+  Breaking change: requires sample header values to be supplied with `headers`.
+
 0.11.9
 ------
 

servant-docs/golden/comprehensive.md

@@ -530,6 +530,24 @@
 
 ```
 
+## GET /resource
+
+### Response:
+
+- Status code 200
+- Headers: []
+
+- Supported content types are:
+
+    - `application/json;charset=utf-8`
+    - `application/json`
+
+- Example (`application/json;charset=utf-8`, `application/json`):
+
+```javascript
+
+```
+
 ## GET /streaming
 
 ### Request:

servant-docs/servant-docs.cabal

@@ -1,6 +1,6 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-docs
-version:             0.11.9
+version:             0.12
 
 synopsis:            generate API docs for your servant webservice
 category:            Servant, Web
@@ -41,25 +41,25 @@ library
   --
   -- note: mtl lower bound is so low because of GHC-7.8
   build-depends:
-      base       >= 4.9      && < 4.16
+      base       >= 4.9      && < 4.18
     , bytestring >= 0.10.8.1 && < 0.12
-    , text       >= 1.2.3.0  && < 1.3
+    , text       >= 1.2.3.0  && < 2.1
 
   -- Servant dependencies
   build-depends:
-      servant            >= 0.18 && <0.19
+      servant            >= 0.18 && <0.20
 
   -- Other dependencies: Lower bound around what is in the latest Stackage LTS.
   -- Here can be exceptions if we really need features from the newer versions.
   build-depends:
-      aeson                >= 1.4.1.0  && < 1.6
+      aeson                >= 1.4.1.0  && < 3
     , aeson-pretty         >= 0.8.5    && < 0.9
-    , base-compat          >= 0.10.5   && < 0.12
+    , base-compat          >= 0.10.5   && < 0.13
     , case-insensitive     >= 1.2.0.11 && < 1.3
-    , hashable             >= 1.2.7.0  && < 1.4
+    , hashable             >= 1.2.7.0  && < 1.5
     , http-media           >= 0.7.1.3  && < 0.9
     , http-types           >= 0.12.2   && < 0.13
-    , lens                 >= 4.17     && < 5.1
+    , lens                 >= 4.17     && < 5.3
     , string-conversions   >= 0.4.0.1  && < 0.5
     , universe-base        >= 1.1.1    && < 1.2
     , unordered-containers >= 0.2.9.0  && < 0.3

servant-docs/src/Servant/Docs/Internal.hs

@@ -62,6 +62,7 @@ import           GHC.TypeLits
 import           Servant.API
 import           Servant.API.ContentTypes
 import           Servant.API.TypeLevel
+import           Servant.API.Generic
 
 import qualified Data.Universe.Helpers      as U
 
@@ -446,7 +447,7 @@ docsWith opts intros (ExtraInfo endpoints) p =
       & apiEndpoints %~ HM.unionWith (flip combineAction) endpoints
 
 
--- | Generate the docs for a given API that implements 'HasDocs' with with any
+-- | Generate the docs for a given API that implements 'HasDocs' with any
 -- number of introduction(s)
 docsWithIntros :: HasDocs api => [DocIntro] -> Proxy api -> API
 docsWithIntros intros = docsWith defaultDocOptions intros mempty
@@ -1143,6 +1144,9 @@ instance HasDocs api => HasDocs (Vault :> api) where
 instance HasDocs api => HasDocs (WithNamedContext name context api) where
   docsFor Proxy = docsFor (Proxy :: Proxy api)
 
+instance HasDocs api => HasDocs (WithResource res :> api) where
+  docsFor Proxy = docsFor (Proxy :: Proxy api)
+
 instance (ToAuthInfo (BasicAuth realm usr), HasDocs api) => HasDocs (BasicAuth realm usr :> api) where
   docsFor Proxy (endpoint, action) =
     docsFor (Proxy :: Proxy api) (endpoint, action')
@@ -1150,6 +1154,9 @@ instance (ToAuthInfo (BasicAuth realm usr), HasDocs api) => HasDocs (BasicAuth r
         authProxy = Proxy :: Proxy (BasicAuth realm usr)
         action' = over authInfo (|> toAuthInfo authProxy) action
 
+instance HasDocs (ToServantApi api) => HasDocs (NamedRoutes api) where
+  docsFor Proxy = docsFor (Proxy :: Proxy (ToServantApi api))
+
 -- ToSample instances for simple types
 instance ToSample NoContent
 instance ToSample Bool

servant-foreign/servant-foreign.cabal

@@ -1,4 +1,4 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-foreign
 version:             0.15.4
 
@@ -41,18 +41,18 @@ library
   --
   -- note: mtl lower bound is so low because of GHC-7.8
   build-depends:
-      base        >= 4.9     && < 4.16
+      base        >= 4.9     && < 4.18
-    , text        >= 1.2.3.0 && < 1.3
+    , text        >= 1.2.3.0 && < 2.1
 
   -- Servant dependencies
   build-depends:
-      servant            >=0.18 && <0.19
+      servant            >=0.18 && <0.20
 
   -- Other dependencies: Lower bound around what is in the latest Stackage LTS.
   -- Here can be exceptions if we really need features from the newer versions.
   build-depends:
-      base-compat >= 0.10.5  && < 0.12
+      base-compat >= 0.10.5  && < 0.13
-    , lens        >= 4.17    && < 5.1
+    , lens        >= 4.17    && < 5.3
     , http-types  >= 0.12.2  && < 0.13
 
   hs-source-dirs:      src
@@ -74,7 +74,7 @@ test-suite spec
 
   -- Additional dependencies
   build-depends:
-    hspec >= 2.6.0 && <2.9
+    hspec >= 2.6.0 && <2.10
   build-tool-depends:
-    hspec-discover:hspec-discover >=2.6.0 && <2.9
+    hspec-discover:hspec-discover >=2.6.0 && <2.10
   default-language:  Haskell2010

servant-foreign/src/Servant/Foreign/Internal.hs

@@ -487,6 +487,13 @@ instance HasForeign lang ftype api =>
 
   foreignFor lang ftype Proxy = foreignFor lang ftype (Proxy :: Proxy api)
 
+instance HasForeign lang ftype api =>
+  HasForeign lang ftype (WithResource res :> api) where
+
+  type Foreign ftype (WithResource res :> api) = Foreign ftype api
+
+  foreignFor lang ftype Proxy = foreignFor lang ftype (Proxy :: Proxy api)
+
 instance HasForeign lang ftype api
   => HasForeign lang ftype (HttpVersion :> api) where
   type Foreign ftype (HttpVersion :> api) = Foreign ftype api

servant-http-streams/CHANGELOG.md

@@ -1,6 +1,16 @@
   [The latest version of this document is on GitHub.](https://github.com/haskell-servant/servant/blob/master/servant-http-streams/CHANGELOG.md)
 [Changelog for `servant` package contains significant entries for all core packages.](https://github.com/haskell-servant/servant/blob/master/servant/CHANGELOG.md)
 
+0.18.4
+------
+
+### Significant changes
+
+- *servant-client* / *servant-client-core* / *servant-http-streams*:
+  Fix erroneous behavior, where only 2XX status codes would be considered
+  successful, irrelevant of the status parameter specified by the verb
+  combinator. ([#1469](https://github.com/haskell-servant/servant/pull/1469))
+
 0.18.3
 ------
 

servant-http-streams/servant-http-streams.cabal

@@ -1,6 +1,6 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-http-streams
-version:             0.18.3
+version:             0.18.4
 
 synopsis:            Automatic derivation of querying functions for servant
 category:            Servant, Web
@@ -38,14 +38,14 @@ library
   -- Bundled with GHC: Lower bound to not force re-installs
   -- text and mtl are bundled starting with GHC-8.4
   build-depends:
-      base                  >= 4.9      && < 4.16
+      base                  >= 4.9      && < 4.18
     , bytestring            >= 0.10.8.1 && < 0.12
     , containers            >= 0.5.7.1  && < 0.7
     , deepseq               >= 1.4.2.0  && < 1.5
-    , mtl                   >= 2.2.2    && < 2.3
+    , mtl                   ^>= 2.2.2   || ^>= 2.3.1
-    , text                  >= 1.2.3.0  && < 1.3
+    , text                  >= 1.2.3.0  && < 2.1
-    , time                  >= 1.6.0.1  && < 1.10
+    , time                  >= 1.6.0.1  && < 1.13
-    , transformers          >= 0.5.2.0  && < 0.6
+    , transformers          >= 0.5.2.0  && < 0.7
 
   if !impl(ghc >= 8.2)
     build-depends:
@@ -54,25 +54,25 @@ library
   -- Servant dependencies.
   -- Strict dependency on `servant-client-core` as we re-export things.
   build-depends:
-      servant               == 0.18.*
+      servant               >= 0.18 && < 0.20
-    , servant-client-core   >= 0.18.3 && <0.18.4
+    , servant-client-core   >= 0.18.3 && <0.20
 
   -- Other dependencies: Lower bound around what is in the latest Stackage LTS.
   -- Here can be exceptions if we really need features from the newer versions.
   build-depends:
-      base-compat           >= 0.10.5   && < 0.12
+      base-compat           >= 0.10.5   && < 0.13
     , case-insensitive
     , http-streams          >= 0.8.6.1  && < 0.9
     , http-media            >= 0.7.1.3  && < 0.9
     , io-streams            >= 1.5.0.1  && < 1.6
     , http-types            >= 0.12.2   && < 0.13
-    , http-common           >= 0.8.2.0  && < 0.8.3
+    , http-common           >= 0.8.2.0  && < 0.9
     , exceptions            >= 0.10.0   && < 0.11
     , kan-extensions        >= 5.2      && < 5.3
     , monad-control         >= 1.0.2.3  && < 1.1
     , semigroupoids         >= 5.3.1    && < 5.4
     , transformers-base     >= 0.4.5.2  && < 0.5
-    , transformers-compat   >= 0.6.2    && < 0.7
+    , transformers-compat   >= 0.6.2    && < 0.8
 
   hs-source-dirs: src
   default-language: Haskell2010
@@ -112,16 +112,16 @@ test-suite spec
   -- Additional dependencies
   build-depends:
       entropy           >= 0.4.1.3  && < 0.5
-    , hspec             >= 2.6.0    && < 2.9
+    , hspec             >= 2.6.0    && < 2.10
     , HUnit             >= 1.6.0.0  && < 1.7
     , network           >= 2.8.0.0  && < 3.2
     , QuickCheck        >= 2.12.6.1 && < 2.15
-    , servant           == 0.18.*
+    , servant           == 0.19.*
-    , servant-server    == 0.18.*
+    , servant-server    == 0.19.*
     , tdigest           >= 0.2     && < 0.3
 
   build-tool-depends:
-    hspec-discover:hspec-discover >= 2.6.0 && < 2.9
+    hspec-discover:hspec-discover >= 2.6.0 && < 2.10
 
 test-suite readme
   type:           exitcode-stdio-1.0

servant-http-streams/src/Servant/HttpStreams/Internal.hs

@@ -57,7 +57,7 @@ import           GHC.Generics
 import           Network.HTTP.Media
                  (renderHeader)
 import           Network.HTTP.Types
-                 (Status (..), hContentType, http11, renderQuery)
+                 (Status (..), hContentType, http11, renderQuery, statusIsSuccessful)
 import           Servant.Client.Core
 
 import qualified Network.Http.Client        as Client
@@ -160,12 +160,12 @@ performRequest acceptStatus req = do
     x <- ClientM $ lift $ lift $ Codensity $ \k -> do
         Client.sendRequest conn req' body
         Client.receiveResponse conn $ \res' body' -> do
-            let sc = Client.getStatusCode res'
+            let status = toEnum $ Client.getStatusCode res'
             lbs <- BSL.fromChunks <$> Streams.toList body'
             let res'' = clientResponseToResponse res' lbs
                 goodStatus = case acceptStatus of
-                  Nothing -> sc >= 200 && sc < 300
+                  Nothing -> statusIsSuccessful status
-                  Just good -> sc `elem` (statusCode <$> good)
+                  Just good -> status `elem` good
             if goodStatus
             then k (Right res'')
             else k (Left (mkFailureResponse burl req res''))
@@ -180,8 +180,8 @@ performWithStreamingRequest req k = do
         Client.sendRequest conn req' body
         Client.receiveResponseRaw conn $ \res' body' -> do
             -- check status code
-            let sc = Client.getStatusCode res'
+            let status = toEnum $ Client.getStatusCode res'
-            unless (sc >= 200 && sc < 300) $ do
+            unless (statusIsSuccessful status) $ do
                 lbs <- BSL.fromChunks <$> Streams.toList body'
                 throwIO $ mkFailureResponse burl req (clientResponseToResponse res' lbs)
 

servant-machines/servant-machines.cabal

@@ -1,4 +1,4 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-machines
 version:             0.15.1
 
@@ -23,7 +23,7 @@ extra-source-files:
 
 source-repository head
   type: git
-  location: http://github.com/haskell-servant/servant-machines.git
+  location: http://github.com/haskell-servant/servant.git
 
 library
   exposed-modules:     Servant.Machines
@@ -31,8 +31,8 @@ library
       base          >=4.9      && <5
     , bytestring    >=0.10.8.1 && <0.12
     , machines      >=0.6.4    && <0.8
-    , mtl           >=2.2.2    && <2.3
+    , mtl           ^>=2.2.2   || ^>=2.3.1
-    , servant       >=0.15     && <0.19
+    , servant       >=0.15     && <0.20
   hs-source-dirs:      src
   default-language:    Haskell2010
   ghc-options: -Wall
@@ -51,8 +51,8 @@ test-suite example
     , servant
     , machines
     , servant-machines
-    , servant-server >=0.15     && <0.19
+    , servant-server >=0.15     && <0.20
-    , servant-client >=0.15     && <0.19
+    , servant-client >=0.15     && <0.20
     , wai            >=3.2.1.2  && <3.3
     , warp           >=3.2.25   && <3.4
     , http-client

servant-pipes/servant-pipes.cabal

@@ -1,4 +1,4 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-pipes
 version:             0.15.3
 
@@ -23,7 +23,7 @@ extra-source-files:
 
 source-repository head
   type: git
-  location: http://github.com/haskell-servant/servant-pipes.git
+  location: http://github.com/haskell-servant/servant.git
 
 library
   exposed-modules:     Servant.Pipes
@@ -32,9 +32,9 @@ library
     , bytestring    >=0.10.8.1 && <0.12
     , pipes         >=4.3.9    && <4.4
     , pipes-safe    >=2.3.1    && <2.4
-    , mtl           >=2.2.2    && <2.3
+    , mtl           ^>=2.2.2   || ^>=2.3.1
     , monad-control >=1.0.2.3  && <1.1
-    , servant       >=0.15     && <0.19
+    , servant       >=0.15     && <0.20
   hs-source-dirs:      src
   default-language:    Haskell2010
   ghc-options: -Wall
@@ -51,12 +51,12 @@ test-suite example
     , bytestring
     , http-media
     , servant
-    , pipes 
+    , pipes
     , pipes-safe
     , servant-pipes
     , pipes-bytestring  >=2.1.6    && <2.2
-    , servant-server    >=0.15     && <0.19
+    , servant-server    >=0.15     && <0.20
-    , servant-client    >=0.15     && <0.19
+    , servant-client    >=0.15     && <0.20
     , wai               >=3.2.1.2  && <3.3
     , warp              >=3.2.25   && <3.4
     , http-client

servant-server/CHANGELOG.md

@@ -1,6 +1,36 @@
 [The latest version of this document is on GitHub.](https://github.com/haskell-servant/servant/blob/master/servant-server/CHANGELOG.md)
 [Changelog for `servant` package contains significant entries for all core packages.](https://github.com/haskell-servant/servant/blob/master/servant/CHANGELOG.md)
 
+Package versions follow the [Package Versioning Policy](https://pvp.haskell.org/): in A.B.C, bumps to either A or B represent major versions.
+
+0.19.2
+------
+
+Compatibility with GHC 9.4, see [PR #1592](https://github.com/haskell-servant/servant/pull/1592).
+
+0.19.1
+------
+
+- Add `MonadFail` instance for `Handler` wrt [#1545](https://github.com/haskell-servant/servant/issues/1545)
+- Support GHC 9.2 [#1525](https://github.com/haskell-servant/servant/issues/1525)
+- Add capture hints in `Router` type for debug and display purposes [PR #1556] (https://github.com/haskell-servant/servant/pull/1556)
+
+0.19
+----
+
+### Significant changes
+
+- Drop support for GHC < 8.6.
+- Support GHC 9.0 (GHC 9.2 should work as well, but isn't fully tested yet).
+- Support Aeson 2 ([#1475](https://github.com/haskell-servant/servant/pull/1475)),
+  which fixes a [DOS vulnerability](https://github.com/haskell/aeson/issues/864)
+  related to hash collisions.
+- Add `NamedRoutes` combinator, making support for records first-class in Servant
+  ([#1388](https://github.com/haskell-servant/servant/pull/1388)).
+- Add custom type errors for partially applied combinators
+  ([#1289](https://github.com/haskell-servant/servant/pull/1289),
+  [#1486](https://github.com/haskell-servant/servant/pull/1486)).
+
 0.18.3
 ------
 

servant-server/example/greet.hs

@@ -18,7 +18,6 @@ import           Network.Wai.Handler.Warp
 
 import           Servant
 import           Servant.Server.Generic ()
-import           Servant.API.Generic
 
 -- * Example
 

servant-server/servant-server.cabal

@@ -1,6 +1,6 @@
-cabal-version:       >=1.10
+cabal-version:       2.2
 name:                servant-server
-version:             0.18.3
+version:             0.19.2
 
 synopsis:            A family of combinators for defining webservices APIs and serving them
 category:            Servant, Web
@@ -23,7 +23,7 @@ author:              Servant Contributors
 maintainer:          haskell-servant-maintainers@googlegroups.com
 copyright:           2014-2016 Zalora South East Asia Pte Ltd, 2016-2019 Servant Contributors
 build-type:          Simple
-tested-with: GHC ==8.6.5 || ==8.8.4 || ==8.10.2 || ==9.0.1
+tested-with: GHC ==8.6.5 || ==8.8.4 || ==8.10.7 || ==9.0.2 || ==9.2.4 || ==9.4.3
 
 extra-source-files:
   CHANGELOG.md
@@ -60,25 +60,25 @@ library
   -- Bundled with GHC: Lower bound to not force re-installs
   -- text and mtl are bundled starting with GHC-8.4
   build-depends:
-      base                >= 4.9      && < 4.16
+      base                >= 4.9      && < 4.18
     , bytestring          >= 0.10.8.1 && < 0.12
     , constraints         >= 0.2      && < 0.14
     , containers          >= 0.5.7.1  && < 0.7
-    , mtl                 >= 2.2.2    && < 2.3
+    , mtl                 ^>= 2.2.2   || ^>= 2.3.1
-    , text                >= 1.2.3.0  && < 1.3
+    , text                >= 1.2.3.0  && < 2.1
-    , transformers        >= 0.5.2.0  && < 0.6
+    , transformers        >= 0.5.2.0  && < 0.7
     , filepath            >= 1.4.1.1  && < 1.5
 
   -- Servant dependencies
   -- strict dependency as we re-export 'servant' things.
   build-depends:
-      servant             >= 0.18.3   && < 0.18.4
+      servant             >= 0.19     && < 0.20
-    , http-api-data       >= 0.4.1    && < 0.4.4
+    , http-api-data       >= 0.4.1    && < 0.5.1
 
   -- Other dependencies: Lower bound around what is in the latest Stackage LTS.
   -- Here can be exceptions if we really need features from the newer versions.
   build-depends:
-      base-compat         >= 0.10.5   && < 0.12
+      base-compat         >= 0.10.5   && < 0.13
     , base64-bytestring   >= 1.0.0.1  && < 1.3
     , exceptions          >= 0.10.0   && < 0.11
     , http-media          >= 0.7.1.3  && < 0.9
@@ -88,10 +88,10 @@ library
     , network             >= 2.8      && < 3.2
     , sop-core            >= 0.4.0.0  && < 0.6
     , string-conversions  >= 0.4.0.1  && < 0.5
-    , resourcet           >= 1.2.2    && < 1.3
+    , resourcet           >= 1.2.2    && < 1.4
     , tagged              >= 0.8.6    && < 0.9
     , transformers-base   >= 0.4.5.2  && < 0.5
-    , wai                 >= 3.2.1.2  && < 3.3
+    , wai                 >= 3.2.2.1  && < 3.3
     , wai-app-static      >= 3.1.6.2  && < 3.2
     , word8               >= 0.1.3    && < 0.2
 
@@ -114,7 +114,7 @@ executable greet
     , text
 
   build-depends:
-      aeson               >= 1.4.1.0  && < 1.6
+      aeson               >= 1.4.1.0  && < 3
     , warp                >= 3.2.25   && < 3.4
 
 test-suite spec
@@ -157,9 +157,9 @@ test-suite spec
 
   -- Additional dependencies
   build-depends:
-      aeson                >= 1.4.1.0  && < 1.6
+      aeson                >= 1.4.1.0  && < 3
     , directory            >= 1.3.0.0  && < 1.4
-    , hspec                >= 2.6.0    && < 2.9
+    , hspec                >= 2.6.0    && < 2.10
     , hspec-wai            >= 0.10.1   && < 0.12
     , QuickCheck           >= 2.12.6.1 && < 2.15
     , should-not-typecheck >= 2.1.0    && < 2.2
@@ -167,4 +167,4 @@ test-suite spec
     , wai-extra            >= 3.0.24.3 && < 3.2
 
   build-tool-depends:
-    hspec-discover:hspec-discover >= 2.6.0 && <2.9
+    hspec-discover:hspec-discover >= 2.6.0 && <2.10

servant-server/src/Servant/Server.hs

@@ -235,7 +235,7 @@ hoistServer p = hoistServerWithContext p (Proxy :: Proxy '[])
 -- > │  └─ e/
 -- > │     └─•
 -- > ├─ b/
--- > │  └─ <capture>/
+-- > │  └─ <x::Int>/
 -- > │     ├─•
 -- > │     ┆
 -- > │     └─•
@@ -252,7 +252,8 @@ hoistServer p = hoistServerWithContext p (Proxy :: Proxy '[])
 --
 -- [@─•@] Leaves reflect endpoints.
 --
--- [@\<capture\>/@] This is a delayed capture of a path component.
+-- [@\<x::Int\>/@] This is a delayed capture of a single
+-- path component named @x@, of expected type @Int@.
 --
 -- [@\<raw\>@] This is a part of the API we do not know anything about.
 --

servant-server/src/Servant/Server/Experimental/Auth.hs

@@ -1,5 +1,6 @@
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 {-# LANGUAGE DeriveDataTypeable    #-}
+{-# LANGUAGE DeriveFunctor #-}
 {-# LANGUAGE DeriveGeneric         #-}
 {-# LANGUAGE FlexibleContexts      #-}
 {-# LANGUAGE FlexibleInstances     #-}
@@ -44,7 +45,7 @@ type family AuthServerData a :: *
 -- NOTE: THIS API IS EXPERIMENTAL AND SUBJECT TO CHANGE
 newtype AuthHandler r usr = AuthHandler
   { unAuthHandler :: r -> Handler usr }
-  deriving (Generic, Typeable)
+  deriving (Functor, Generic, Typeable)
 
 -- | NOTE: THIS API IS EXPERIMENTAL AND SUBJECT TO CHANGE
 mkAuthHandler :: (r -> Handler usr) -> AuthHandler r usr

servant-server/src/Servant/Server/Internal.hs

@@ -1,5 +1,6 @@
 {-# LANGUAGE AllowAmbiguousTypes   #-}
 {-# LANGUAGE ConstraintKinds       #-}
+{-# LANGUAGE CPP                   #-}
 {-# LANGUAGE DataKinds             #-}
 {-# LANGUAGE DeriveDataTypeable    #-}
 {-# LANGUAGE FlexibleContexts      #-}
@@ -34,14 +35,15 @@ module Servant.Server.Internal
 import           Control.Monad
                  (join, when)
 import           Control.Monad.Trans
-                 (liftIO)
+                 (liftIO, lift)
 import           Control.Monad.Trans.Resource
-                 (runResourceT)
+                 (runResourceT, ReleaseKey)
+import           Data.Acquire
 import qualified Data.ByteString                            as B
 import qualified Data.ByteString.Builder                    as BB
 import qualified Data.ByteString.Char8                      as BC8
 import qualified Data.ByteString.Lazy                       as BL
-import           Data.Constraint (Dict(..))
+import           Data.Constraint (Constraint, Dict(..))
 import           Data.Either
                  (partitionEithers)
 import           Data.Maybe
@@ -56,7 +58,7 @@ import qualified Data.Text                                  as T
 import           Data.Typeable
 import           GHC.Generics
 import           GHC.TypeLits
-                 (KnownNat, KnownSymbol, natVal, symbolVal)
+                 (KnownNat, KnownSymbol, TypeError, symbolVal)
 import qualified Network.HTTP.Media                         as NHM
 import           Network.HTTP.Types                         hiding
                  (Header, ResponseHeaders)
@@ -76,7 +78,7 @@ import           Servant.API
                  QueryParam', QueryParams, Raw, ReflectMethod (reflectMethod),
                  RemoteHost, ReqBody', SBool (..), SBoolI (..), SourceIO,
                  Stream, StreamBody', Summary, ToSourceIO (..), Vault, Verb,
-                 WithNamedContext, NamedRoutes)
+                 WithNamedContext, WithResource, NamedRoutes)
 import           Servant.API.Generic (GenericMode(..), ToServant, ToServantApi, GServantProduct, toServant, fromServant)
 import           Servant.API.ContentTypes
                  (AcceptHeader (..), AllCTRender (..), AllCTUnrender (..),
@@ -87,10 +89,15 @@ import           Servant.API.Modifiers
                  unfoldRequestArgument)
 import           Servant.API.ResponseHeaders
                  (GetHeaders, Headers, getHeaders, getResponse)
+import           Servant.API.Status
+                 (statusFromNat)
 import qualified Servant.Types.SourceT                      as S
+import           Servant.API.TypeErrors
 import           Web.HttpApiData
                  (FromHttpApiData, parseHeader, parseQueryParam, parseUrlPiece,
                  parseUrlPieces)
+import           Data.Kind
+                 (Type)
 
 import           Servant.Server.Internal.BasicAuth
 import           Servant.Server.Internal.Context
@@ -109,6 +116,10 @@ import           Servant.API.TypeLevel
                  (AtLeastOneFragment, FragmentUnique)
 
 class HasServer api context where
+  -- | The type of a server for this API, given a monad to run effects in.
+  --
+  -- Note that the result kind is @*@, so it is /not/ a monad transformer, unlike
+  -- what the @T@ in the name might suggest.
   type ServerT api (m :: * -> *) :: *
 
   route ::
@@ -170,7 +181,7 @@ instance (HasServer a context, HasServer b context) => HasServer (a :<|> b) cont
 -- > server = getBook
 -- >   where getBook :: Text -> Handler Book
 -- >         getBook isbn = ...
-instance (KnownSymbol capture, FromHttpApiData a
+instance (KnownSymbol capture, FromHttpApiData a, Typeable a
          , HasServer api context, SBoolI (FoldLenient mods)
          , HasContextEntry (MkContextWithErrorFormatter context) ErrorFormatters
          )
@@ -182,7 +193,7 @@ instance (KnownSymbol capture, FromHttpApiData a
   hoistServerWithContext _ pc nt s = hoistServerWithContext (Proxy :: Proxy api) pc nt . s
 
   route Proxy context d =
-    CaptureRouter $
+    CaptureRouter [hint] $
         route (Proxy :: Proxy api)
               context
               (addCapture d $ \ txt -> withRequest $ \ request ->
@@ -194,6 +205,7 @@ instance (KnownSymbol capture, FromHttpApiData a
     where
       rep = typeRep (Proxy :: Proxy Capture')
       formatError = urlParseErrorFormatter $ getContextEntry (mkContextWithErrorFormatter context)
+      hint = CaptureHint (T.pack $ symbolVal $ Proxy @capture) (typeRep (Proxy :: Proxy a))
 
 -- | If you use 'CaptureAll' in one of the endpoints for your API,
 -- this automatically requires your server-side handler to be a
@@ -212,7 +224,7 @@ instance (KnownSymbol capture, FromHttpApiData a
 -- > server = getSourceFile
 -- >   where getSourceFile :: [Text] -> Handler Book
 -- >         getSourceFile pathSegments = ...
-instance (KnownSymbol capture, FromHttpApiData a
+instance (KnownSymbol capture, FromHttpApiData a, Typeable a
          , HasServer api context
          , HasContextEntry (MkContextWithErrorFormatter context) ErrorFormatters
          )
@@ -224,7 +236,7 @@ instance (KnownSymbol capture, FromHttpApiData a
   hoistServerWithContext _ pc nt s = hoistServerWithContext (Proxy :: Proxy api) pc nt . s
 
   route Proxy context d =
-    CaptureAllRouter $
+    CaptureAllRouter [hint] $
         route (Proxy :: Proxy api)
               context
               (addCapture d $ \ txts -> withRequest $ \ request ->
@@ -235,6 +247,43 @@ instance (KnownSymbol capture, FromHttpApiData a
     where
       rep = typeRep (Proxy :: Proxy CaptureAll)
       formatError = urlParseErrorFormatter $ getContextEntry (mkContextWithErrorFormatter context)
+      hint = CaptureHint (T.pack $ symbolVal $ Proxy @capture) (typeRep (Proxy :: Proxy [a]))
+
+-- | If you use 'WithResource' in one of the endpoints for your API Servant
+-- will provide the handler for this endpoint an argument of the specified type.
+-- The lifespan of this resource will be automatically managed by Servant. This
+-- resource will be created before the handler starts and it will be destoyed
+-- after it ends. A new resource is created for each request to the endpoint.
+
+-- The creation and destruction are done using a 'Data.Acquire.Acquire'
+-- provided via server 'Context'.
+--
+-- Example
+--
+-- > type MyApi = WithResource Handle :> "writeToFile" :> Post '[JSON] NoContent
+-- >
+-- > server :: Server MyApi
+-- > server = writeToFile
+-- >   where writeToFile :: (ReleaseKey, Handle) -> Handler NoContent
+-- >         writeToFile (_, h) = hPutStrLn h "message"
+--
+-- In addition to the resource, the handler will also receive a 'ReleaseKey'
+-- which can be used to deallocate the resource before the end of the request
+-- if desired.
+
+instance (HasServer api ctx, HasContextEntry ctx (Acquire a))
+      => HasServer (WithResource a :> api) ctx where
+
+  type ServerT (WithResource a :> api) m = (ReleaseKey, a) -> ServerT api m
+
+  hoistServerWithContext _ pc nt s = hoistServerWithContext (Proxy @api) pc nt . s
+
+  route Proxy context d = route (Proxy @api) context (d `addParameterCheck` allocateResource)
+    where
+      allocateResource :: DelayedIO (ReleaseKey, a)
+      allocateResource = DelayedIO $ lift $ allocateAcquire (getContextEntry context)
+
+
 
 allowedMethodHead :: Method -> Request -> Bool
 allowedMethodHead method request = method == methodGet && requestMethod request == methodHead
@@ -298,7 +347,7 @@ instance {-# OVERLAPPABLE #-}
 
   route Proxy _ = methodRouter ([],) method (Proxy :: Proxy ctypes) status
     where method = reflectMethod (Proxy :: Proxy method)
-          status = toEnum . fromInteger $ natVal (Proxy :: Proxy status)
+          status = statusFromNat (Proxy :: Proxy status)
 
 instance {-# OVERLAPPING #-}
          ( AllCTRender ctypes a, ReflectMethod method, KnownNat status
@@ -310,7 +359,7 @@ instance {-# OVERLAPPING #-}
 
   route Proxy _ = methodRouter (\x -> (getHeaders x, getResponse x)) method (Proxy :: Proxy ctypes) status
     where method = reflectMethod (Proxy :: Proxy method)
-          status = toEnum . fromInteger $ natVal (Proxy :: Proxy status)
+          status = statusFromNat (Proxy :: Proxy status)
 
 instance (ReflectMethod method) =>
          HasServer (NoContentVerb method) context where
@@ -331,7 +380,7 @@ instance {-# OVERLAPPABLE #-}
 
   route Proxy _ = streamRouter ([],) method status (Proxy :: Proxy framing) (Proxy :: Proxy ctype)
       where method = reflectMethod (Proxy :: Proxy method)
-            status = toEnum . fromInteger $ natVal (Proxy :: Proxy status)
+            status = statusFromNat (Proxy :: Proxy status)
 
 
 instance {-# OVERLAPPING #-}
@@ -345,7 +394,7 @@ instance {-# OVERLAPPING #-}
 
   route Proxy _ = streamRouter (\x -> (getHeaders x, getResponse x)) method status (Proxy :: Proxy framing) (Proxy :: Proxy ctype)
       where method = reflectMethod (Proxy :: Proxy method)
-            status = toEnum . fromInteger $ natVal (Proxy :: Proxy status)
+            status = statusFromNat (Proxy :: Proxy status)
 
 
 streamRouter :: forall ctype a c chunk env framing. (MimeRender ctype chunk, FramingRender framing, ToSourceIO chunk a) =>
@@ -812,38 +861,19 @@ instance (HasContextEntry context (NamedContext name subContext), HasServer subA
   hoistServerWithContext _ _ nt s = hoistServerWithContext (Proxy :: Proxy subApi) (Proxy :: Proxy subContext) nt s
 
 -------------------------------------------------------------------------------
--- TypeError helpers
+-- Custom type errors
 -------------------------------------------------------------------------------
 
--- | This instance catches mistakes when there are non-saturated
+-- Erroring instance for 'HasServer' when a combinator is not fully applied
--- type applications on LHS of ':>'.
+instance TypeError (PartialApplication 
---
+#if __GLASGOW_HASKELL__ >= 904
--- >>> serve (Proxy :: Proxy (Capture "foo" :> Get '[JSON] Int)) (error "...")
+                    @(Type -> [Type] -> Constraint) 
--- ...
+#endif
--- ...Expected something of kind Symbol or *, got: k -> l on the LHS of ':>'.
+                    HasServer arr) => HasServer ((arr :: a -> b) :> sub) context
--- ...Maybe you haven't applied enough arguments to
--- ...Capture' '[] "foo"
--- ...
---
--- >>> undefined :: Server (Capture "foo" :> Get '[JSON] Int)
--- ...
--- ...Expected something of kind Symbol or *, got: k -> l on the LHS of ':>'.
--- ...Maybe you haven't applied enough arguments to
--- ...Capture' '[] "foo"
--- ...
---
-instance TypeError (HasServerArrowKindError arr) => HasServer ((arr :: k -> l) :> api) context
   where
-    type ServerT (arr :> api) m = TypeError (HasServerArrowKindError arr)
+    type ServerT (arr :> sub) _ = TypeError (PartialApplication (HasServer :: * -> [*] -> Constraint) arr)
-    -- it doesn't really matter what sub route we peak
+    route = error "unreachable"
-    route _ _ _ = error "servant-server panic: impossible happened in HasServer (arr :> api)"
+    hoistServerWithContext _ _ _ _ = error "unreachable"
-    hoistServerWithContext _ _ _ = id
-
--- Cannot have TypeError here, otherwise use of this symbol will error :)
-type HasServerArrowKindError arr =
-    'Text "Expected something of kind Symbol or *, got: k -> l on the LHS of ':>'."
-    ':$$: 'Text "Maybe you haven't applied enough arguments to"
-    ':$$: 'ShowType arr
 
 -- | This instance prevents from accidentally using '->' instead of ':>'
 --
@@ -878,6 +908,19 @@ type HasServerArrowTypeError a b =
     ':$$: 'Text "and"
     ':$$: 'ShowType b
 
+-- Erroring instances for 'HasServer' for unknown API combinators
+
+-- XXX: This omits the @context@ parameter, e.g.:
+--
+-- "There is no instance for HasServer (Bool :> …)". Do we care ?
+instance {-# OVERLAPPABLE #-} TypeError (NoInstanceForSub 
+#if __GLASGOW_HASKELL__ >= 904
+                                         @(Type -> [Type] -> Constraint) 
+#endif
+                                         HasServer ty) => HasServer (ty :> sub) context
+
+instance {-# OVERLAPPABLE #-} TypeError (NoInstanceFor (HasServer api context)) => HasServer api context
+
 -- | Ignore @'Fragment'@ in server handlers.
 -- See <https://ietf.org/rfc/rfc2616.html#section-15.1.3> for more details.
 --

servant-server/src/Servant/Server/Internal/Handler.hs

@@ -13,17 +13,19 @@ import           Control.Monad.Base
 import           Control.Monad.Catch
                  (MonadCatch, MonadMask, MonadThrow)
 import           Control.Monad.Error.Class
-                 (MonadError)
+                 (MonadError, throwError)
 import           Control.Monad.IO.Class
                  (MonadIO)
 import           Control.Monad.Trans.Control
                  (MonadBaseControl (..))
 import           Control.Monad.Trans.Except
                  (ExceptT, runExceptT)
+import           Data.String
+                 (fromString)
 import           GHC.Generics
                  (Generic)
 import           Servant.Server.Internal.ServerError
-                 (ServerError)
+                 (ServerError, errBody, err500)
 
 newtype Handler a = Handler { runHandler' :: ExceptT ServerError IO a }
   deriving
@@ -32,6 +34,9 @@ newtype Handler a = Handler { runHandler' :: ExceptT ServerError IO a }
     , MonadThrow, MonadCatch, MonadMask
     )
 
+instance MonadFail Handler where
+  fail str = throwError err500 { errBody = fromString str }
+
 instance MonadBase IO Handler where
   liftBase = Handler . liftBase
 

servant-server/src/Servant/Server/Internal/Router.hs

@@ -9,12 +9,16 @@ import           Prelude.Compat
 
 import           Data.Function
                  (on)
+import           Data.List
+                 (nub)
 import           Data.Map
                  (Map)
 import qualified Data.Map                                   as M
 import           Data.Text
                  (Text)
 import qualified Data.Text                                  as T
+import           Data.Typeable
+                 (TypeRep)
 import           Network.Wai
                  (Response, pathInfo)
 import           Servant.Server.Internal.ErrorFormatter
@@ -24,6 +28,21 @@ import           Servant.Server.Internal.ServerError
 
 type Router env = Router' env RoutingApplication
 
+-- | Holds information about pieces of url that are captured as variables.
+data CaptureHint = CaptureHint
+  { captureName :: Text
+  -- ^ Holds the name of the captured variable
+  , captureType :: TypeRep
+  -- ^ Holds the type of the captured variable
+  }
+  deriving (Show, Eq)
+
+toCaptureTag :: CaptureHint -> Text
+toCaptureTag hint = captureName hint <> "::" <> (T.pack . show) (captureType hint)
+
+toCaptureTags :: [CaptureHint] -> Text
+toCaptureTags hints = "<" <> T.intercalate "|" (map toCaptureTag hints) <> ">"
+
 -- | Internal representation of a router.
 --
 -- The first argument describes an environment type that is
@@ -36,12 +55,23 @@ data Router' env a =
       -- ^ the map contains routers for subpaths (first path component used
       --   for lookup and removed afterwards), the list contains handlers
       --   for the empty path, to be tried in order
-  | CaptureRouter (Router' (Text, env) a)
+  | CaptureRouter [CaptureHint] (Router' (Text, env) a)
       -- ^ first path component is passed to the child router in its
-      --   environment and removed afterwards
+      --   environment and removed afterwards.
-  | CaptureAllRouter (Router' ([Text], env) a)
+      --   The first argument is a list of hints for all variables that can be
+      --   captured by the router. The fact that it is a list is counter-intuitive,
+      --   because the 'Capture' combinator only allows to capture a single varible,
+      --   with a single name and a single type. However, the 'choice' smart
+      --   constructor may merge two 'Capture' combinators with different hints, thus
+      --   forcing the type to be '[CaptureHint]'.
+      --   Because 'CaptureRouter' is built from a 'Capture' combinator, the list of
+      --   hints should always be non-empty.
+  | CaptureAllRouter [CaptureHint] (Router' ([Text], env) a)
       -- ^ all path components are passed to the child router in its
       --   environment and are removed afterwards
+      --   The first argument is a hint for the list of variables that can be
+      --   captured by the router. Note that the 'captureType' field of the hint
+      --   should always be '[a]' for some 'a'.
   | RawRouter     (env -> a)
       -- ^ to be used for routes we do not know anything about
   | Choice        (Router' env a) (Router' env a)
@@ -69,8 +99,8 @@ leafRouter l = StaticRouter M.empty [l]
 choice :: Router' env a -> Router' env a -> Router' env a
 choice (StaticRouter table1 ls1) (StaticRouter table2 ls2) =
   StaticRouter (M.unionWith choice table1 table2) (ls1 ++ ls2)
-choice (CaptureRouter router1)   (CaptureRouter router2)   =
+choice (CaptureRouter hints1 router1)   (CaptureRouter hints2 router2)   =
-  CaptureRouter (choice router1 router2)
+  CaptureRouter (nub $ hints1 ++ hints2) (choice router1 router2)
 choice router1 (Choice router2 router3) = Choice (choice router1 router2) router3
 choice router1 router2 = Choice router1 router2
 
@@ -84,7 +114,11 @@ choice router1 router2 = Choice router1 router2
 --
 data RouterStructure =
     StaticRouterStructure  (Map Text RouterStructure) Int
-  | CaptureRouterStructure RouterStructure
+  | CaptureRouterStructure [CaptureHint] RouterStructure
+  -- ^ The first argument holds information about variables
+  -- that are captured by the router. There may be several hints
+  -- if several routers have been aggregated by the 'choice'
+  -- smart constructor.
   | RawRouterStructure
   | ChoiceStructure        RouterStructure RouterStructure
   deriving (Eq, Show)
@@ -98,11 +132,11 @@ data RouterStructure =
 routerStructure :: Router' env a -> RouterStructure
 routerStructure (StaticRouter m ls) =
   StaticRouterStructure (fmap routerStructure m) (length ls)
-routerStructure (CaptureRouter router) =
+routerStructure (CaptureRouter hints router) =
-  CaptureRouterStructure $
+  CaptureRouterStructure hints $
     routerStructure router
-routerStructure (CaptureAllRouter router) =
+routerStructure (CaptureAllRouter hints router) =
-  CaptureRouterStructure $
+  CaptureRouterStructure hints $
     routerStructure router
 routerStructure (RawRouter _) =
   RawRouterStructure
@@ -114,8 +148,8 @@ routerStructure (Choice r1 r2) =
 -- | Compare the structure of two routers.
 --
 sameStructure :: Router' env a -> Router' env b -> Bool
-sameStructure r1 r2 =
+sameStructure router1 router2 =
-  routerStructure r1 == routerStructure r2
+    routerStructure router1 == routerStructure router2
 
 -- | Provide a textual representation of the
 -- structure of a router.
@@ -126,7 +160,8 @@ routerLayout router =
   where
     mkRouterLayout :: Bool -> RouterStructure -> [Text]
     mkRouterLayout c (StaticRouterStructure m n) = mkSubTrees c (M.toList m) n
-    mkRouterLayout c (CaptureRouterStructure r)  = mkSubTree c "<capture>" (mkRouterLayout False r)
+    mkRouterLayout c (CaptureRouterStructure hints r) =
+      mkSubTree c (toCaptureTags hints) (mkRouterLayout False r)
     mkRouterLayout c  RawRouterStructure         =
       if c then ["├─ <raw>"] else ["└─ <raw>"]
     mkRouterLayout c (ChoiceStructure r1 r2)     =
@@ -169,7 +204,7 @@ runRouterEnv fmt router env request respond  =
           -> let request' = request { pathInfo = rest }
              in  runRouterEnv fmt router' env request' respond
         _ -> respond $ Fail $ fmt request
-    CaptureRouter router' ->
+    CaptureRouter _ router' ->
       case pathInfo request of
         []   -> respond $ Fail $ fmt request
         -- This case is to handle trailing slashes.
@@ -177,7 +212,7 @@ runRouterEnv fmt router env request respond  =
         first : rest
           -> let request' = request { pathInfo = rest }
              in  runRouterEnv fmt router' (first, env) request' respond
-    CaptureAllRouter router' ->
+    CaptureAllRouter _ router' ->
       let segments = pathInfo request
           request' = request { pathInfo = [] }
       in runRouterEnv fmt router' (segments, env) request' respond

servant-server/test/Servant/Server/RouterSpec.hs

@@ -9,7 +9,9 @@ import           Control.Monad
 import           Data.Proxy
                  (Proxy (..))
 import           Data.Text
-                 (unpack)
+                 (Text, unpack)
+import           Data.Typeable
+                 (typeRep)
 import           Network.HTTP.Types
                  (Status (..))
 import           Network.Wai
@@ -27,6 +29,7 @@ spec :: Spec
 spec = describe "Servant.Server.Internal.Router" $ do
   routerSpec
   distributivitySpec
+  serverLayoutSpec
 
 routerSpec :: Spec
 routerSpec = do
@@ -51,7 +54,7 @@ routerSpec = do
         toApp = toApplication . runRouter (const err404)
 
         cap :: Router ()
-        cap = CaptureRouter $
+        cap = CaptureRouter [hint] $
           let delayed = addCapture (emptyDelayed $ Route pure) (const $ delayedFail err400)
           in leafRouter
              $ \env req res ->
@@ -59,6 +62,9 @@ routerSpec = do
                  . const
                  $ Route success
 
+        hint :: CaptureHint
+        hint = CaptureHint "anything" $ typeRep (Proxy :: Proxy ())
+
         router :: Router ()
         router = leafRouter (\_ _ res -> res $ Route success)
           `Choice` cap
@@ -98,12 +104,30 @@ distributivitySpec =
     it "properly handles mixing static paths at different levels" $ do
       level `shouldHaveSameStructureAs` levelRef
 
+serverLayoutSpec :: Spec
+serverLayoutSpec =
+  describe "serverLayout" $ do
+    it "correctly represents the example API" $ do
+      exampleLayout `shouldHaveLayout` expectedExampleLayout
+    it "aggregates capture hints when different" $ do
+      captureDifferentTypes `shouldHaveLayout` expectedCaptureDifferentTypes
+    it "nubs capture hints when equal" $ do
+      captureSameType `shouldHaveLayout` expectedCaptureSameType
+    it "properly displays CaptureAll hints" $ do
+      captureAllLayout `shouldHaveLayout` expectedCaptureAllLayout
+
 shouldHaveSameStructureAs ::
   (HasServer api1 '[], HasServer api2 '[]) => Proxy api1 -> Proxy api2 -> Expectation
 shouldHaveSameStructureAs p1 p2 =
   unless (sameStructure (makeTrivialRouter p1) (makeTrivialRouter p2)) $
     expectationFailure ("expected:\n" ++ unpack (layout p2) ++ "\nbut got:\n" ++ unpack (layout p1))
 
+shouldHaveLayout ::
+  (HasServer api '[]) => Proxy api -> Text -> Expectation
+shouldHaveLayout p l =
+  unless (routerLayout (makeTrivialRouter p) == l) $
+    expectationFailure ("expected:\n" ++ unpack l ++ "\nbut got:\n" ++ unpack (layout p))
+
 makeTrivialRouter :: (HasServer layout '[]) => Proxy layout -> Router ()
 makeTrivialRouter p =
   route p EmptyContext (emptyDelayed (FailFatal err501))
@@ -144,12 +168,12 @@ staticRef = Proxy
 -- structure:
 
 type Dynamic =
-       "a" :> Capture "foo" Int  :> "b" :> End
+       "a" :> Capture "foo" Int :> "b" :> End
-  :<|> "a" :> Capture "bar" Bool :> "c" :> End
+  :<|> "a" :> Capture "foo" Int :> "c" :> End
-  :<|> "a" :> Capture "baz" Char :> "d" :> End
+  :<|> "a" :> Capture "foo" Int :> "d" :> End
 
 type DynamicRef =
-  "a" :> Capture "anything" () :>
+  "a" :> Capture "foo" Int :>
     ("b" :> End :<|> "c" :> End :<|> "d" :> End)
 
 dynamic :: Proxy Dynamic
@@ -339,3 +363,100 @@ level = Proxy
 
 levelRef :: Proxy LevelRef
 levelRef = Proxy
+
+-- The example API for the 'layout' function.
+-- Should get factorized by the 'choice' smart constructor.
+type ExampleLayout =
+       "a" :> "d" :> Get '[JSON] NoContent
+  :<|> "b" :> Capture "x" Int :> Get '[JSON] Bool
+  :<|> "c" :> Put '[JSON] Bool
+  :<|> "a" :> "e" :> Get '[JSON] Int
+  :<|> "b" :> Capture "x" Int :> Put '[JSON] Bool
+  :<|> Raw
+
+exampleLayout :: Proxy ExampleLayout
+exampleLayout = Proxy
+
+-- The expected representation of the example API layout
+--
+expectedExampleLayout :: Text
+expectedExampleLayout =
+  "/\n\
+  \├─ a/\n\
+  \│  ├─ d/\n\
+  \│  │  └─•\n\
+  \│  └─ e/\n\
+  \│     └─•\n\
+  \├─ b/\n\
+  \│  └─ <x::Int>/\n\
+  \│     ├─•\n\
+  \│     ┆\n\
+  \│     └─•\n\
+  \├─ c/\n\
+  \│  └─•\n\
+  \┆\n\
+  \└─ <raw>\n"
+
+-- A capture API with all capture types being the same
+--
+type CaptureSameType =
+       "a" :> Capture "foo" Int :> "b" :> End
+  :<|> "a" :> Capture "foo" Int :> "c" :> End
+  :<|> "a" :> Capture "foo" Int :> "d" :> End
+
+captureSameType :: Proxy CaptureSameType
+captureSameType = Proxy
+
+-- The expected representation of the CaptureSameType API layout.
+--
+expectedCaptureSameType :: Text
+expectedCaptureSameType =
+  "/\n\
+  \└─ a/\n\
+  \   └─ <foo::Int>/\n\
+  \      ├─ b/\n\
+  \      │  └─•\n\
+  \      ├─ c/\n\
+  \      │  └─•\n\
+  \      └─ d/\n\
+  \         └─•\n"
+
+-- A capture API capturing different types
+--
+type CaptureDifferentTypes =
+       "a" :> Capture "foo" Int :> "b" :> End
+  :<|> "a" :> Capture "bar" Bool :> "c" :> End
+  :<|> "a" :> Capture "baz" Char :> "d" :> End
+
+captureDifferentTypes :: Proxy CaptureDifferentTypes
+captureDifferentTypes = Proxy
+
+-- The expected representation of the CaptureDifferentTypes API layout.
+--
+expectedCaptureDifferentTypes :: Text
+expectedCaptureDifferentTypes =
+  "/\n\
+  \└─ a/\n\
+  \   └─ <foo::Int|bar::Bool|baz::Char>/\n\
+  \      ├─ b/\n\
+  \      │  └─•\n\
+  \      ├─ c/\n\
+  \      │  └─•\n\
+  \      └─ d/\n\
+  \         └─•\n"
+
+-- An API with a CaptureAll part
+
+type CaptureAllLayout = "a" :> CaptureAll "foos" Int :> End
+
+captureAllLayout :: Proxy CaptureAllLayout
+captureAllLayout = Proxy
+
+-- The expected representation of the CaptureAllLayout API.
+--
+expectedCaptureAllLayout :: Text
+expectedCaptureAllLayout =
+  "/\n\
+  \└─ a/\n\
+  \   └─ <foos::[Int]>/\n\
+  \      └─•\n"

servant-server/test/Servant/ServerSpec.hs

@@ -21,6 +21,8 @@ import           Control.Monad.Error.Class
                  (MonadError (..))
 import           Data.Aeson
                  (FromJSON, ToJSON, decode', encode)
+import           Data.Acquire
+                 (Acquire, mkAcquire)
 import qualified Data.ByteString                   as BS
 import qualified Data.ByteString.Base64            as Base64
 import           Data.Char
@@ -81,8 +83,11 @@ import           Servant.Server.Internal.Context
 -- This declaration simply checks that all instances are in place.
 _ = serveWithContext comprehensiveAPI comprehensiveApiContext
 
-comprehensiveApiContext :: Context '[NamedContext "foo" '[]]
+comprehensiveApiContext :: Context '[NamedContext "foo" '[], Acquire Int]
-comprehensiveApiContext = NamedContext EmptyContext :. EmptyContext
+comprehensiveApiContext =
+  NamedContext EmptyContext :.
+  mkAcquire (pure 10) (\_ -> pure ()) :.
+  EmptyContext
 
 -- * Specs
 

servant-swagger/CHANGELOG.md

@@ -0,0 +1,143 @@
+1.1.9
+-------
+
+* Support `servant-0.18`
+
+1.1.8
+-------
+
+* Support `servant-0.17`
+
+1.1.7.1
+-------
+
+* Support `swagger2-2.4`
+
+1.1.7
+-----
+
+* Support servant-0.15
+   - support for 'Stream' and 'StreamBody' combinators
+   - orphan 'ToSchema (SourceT m a)' instance
+* Fix BodyTypes to work with generalized ReqBody' 
+  [#88](https://github.com/haskell-servant/servant-swagger/pull/88)
+
+1.1.6
+-----
+
+* Fixes:
+  * `validateEveryToJSON` now prints validation errors
+
+* Notes:
+  * GHC-8.6 compatible release
+
+1.1.5
+-----
+
+* Notes:
+    * `servant-0.13` compatible release
+    * Drops compatibility with previous `servant` versions.
+
+1.1.4
+-----
+
+* Notes:
+    * `servant-0.12` compatible release
+
+1.1.3.1
+---
+
+* Notes:
+   * GHC-8.2 compatible release
+
+1.1.3
+---
+
+* Notes:
+   * `servant-0.11` compatible release
+
+1.1.2.1
+---
+
+* Notes:
+   * `servant-0.10` compatible release
+
+1.1.2
+---
+
+* Minor fixes:
+  * Support for aeson-1, insert-ordered-containers-0.2
+  * CaptureAll instance
+
+1.1.1
+---
+
+* Minor fixes:
+  * Fix `unused-imports` and `unused-foralls` warnings;
+  * Fix tests to match `swagger2-2.1.1` (add `example` property for `UTCTime` schema).
+
+1.1
+---
+
+* Breaking changes:
+    * Requires `swagger2 >= 2.1`
+    * Requires `servant >= 0.5`
+
+* Notes:
+    * GHC-8.0 compatible release
+
+1.0.3
+---
+
+* Fixes:
+    * Improve compile-time performance of `BodyTypes` even further (see [18e0d95](https://github.com/haskell-servant/servant-swagger/commit/18e0d95ef6fe9076dd9621cb515d8d1a189f71d3))!
+
+1.0.2
+---
+
+* Minor changes:
+    * Add GHC 7.8 support (see [#26](https://github.com/haskell-servant/servant-swagger/pull/26)).
+
+* Fixes:
+    * Improve compile-time performance of `BodyTypes` (see [#25](https://github.com/haskell-servant/servant-swagger/issues/25)).
+
+1.0.1
+---
+
+* Fixes:
+    * Stop using `Data.Swagger.Internal`;
+    * Documentation fixes (links to examples).
+
+1.0
+---
+
+* Major changes (see [#24](https://github.com/haskell-servant/servant-swagger/pull/24)):
+    * Switch to `swagger2-2.*`;
+    * Add automatic `ToJSON`/`ToSchema` validation tests;
+    * Add great documentation;
+    * Export some type-level functions for servant API.
+
+* Minor changes:
+    * Rework Todo API example;
+    * Stop exporting `ToResponseHeader`, `AllAccept` and `AllToResponseHeader` (see [bd50db4](https://github.com/haskell-servant/servant-swagger/commit/bd50db48ca6a106e4366560ded70932d409de1e2));
+    * Change maintainer, update authors/copyrights (see [1a62681](https://github.com/haskell-servant/servant-swagger/commit/1a6268101dc826a92c42e832e402e251c0d32147));
+    * Include changelog and example files into `extra-source-files`.
+
+0.1.2
+---
+
+* Fixes:
+    * Fix default spec for `ReqBody` param to be required (see [#22](https://github.com/haskell-servant/servant-swagger/issues/22));
+    * Set version bounds for `swagger2`.
+
+0.1.1
+---
+
+* Fixes:
+    * Fix `subOperations` to filter endpoints also by method (see [#18](https://github.com/haskell-servant/servant-swagger/issues/18));
+    * Fix response schema in `ToSwagger` instance for `Header` (see [b59e557](https://github.com/haskell-servant/servant-swagger/commit/b59e557a05bc2669332c52b397879e7598747b82)).
+
+0.1
+---
+* Major changes
+    * Use `swagger2` for data model (see [#9](https://github.com/dmjio/servant-swagger/pull/9)); this changes almost everything.