Merge in latest and fix conflicts.

This commit is contained in:
Erik Aker 2021-11-17 18:15:09 -08:00
commit c64bbb96b0
219 changed files with 7189 additions and 1380 deletions

2
.github/FUNDING.yml vendored
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@ -1,6 +1,6 @@
# These are supported funding model platforms
github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
github: [arianvp]
patreon: # Replace with a single Patreon username
open_collective: # Replace with a single Open Collective username
ko_fi: # Replace with a single Ko-fi username

14
.github/run-ghcjs-tests.sh vendored Executable file
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@ -0,0 +1,14 @@
#!/usr/bin/env bash
#
# cabal v2-test does not work with GHCJS
# See: https://github.com/haskell/cabal/issues/6175
#
# This invokes cabal-plan to figure out test binaries, and invokes them with node.
cabal-plan list-bins '*:test:*' | while read -r line
do
testpkg=$(echo "$line" | perl -pe 's/:.*//')
testexe=$(echo "$line" | awk '{ print $2 }')
echo "testing $textexe in package $textpkg"
(cd "$testpkg" && node "$testexe".jsexe/all.js)
done

159
.github/workflows/master.yml vendored Normal file
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@ -0,0 +1,159 @@
name: CI
# Trigger the workflow on push or pull request, but only for the master branch
on:
pull_request:
push:
branches: [master]
jobs:
cabal:
name: ${{ matrix.os }} / ghc ${{ matrix.ghc }}
runs-on: ${{ matrix.os }}
strategy:
matrix:
os: [ubuntu-latest]
cabal: ["3.4"]
ghc:
- "8.6.5"
- "8.8.4"
- "8.10.7"
- "9.0.1"
steps:
- uses: actions/checkout@v2
- uses: haskell/actions/setup@v1
id: setup-haskell-cabal
name: Setup Haskell
with:
ghc-version: ${{ matrix.ghc }}
cabal-version: ${{ matrix.cabal }}
- name: Freeze
run: |
cabal configure --enable-tests --enable-benchmarks --test-show-details=direct
cabal freeze
- uses: actions/cache@v2.1.3
name: Cache ~/.cabal/store and dist-newstyle
with:
path: |
${{ steps.setup-haskell-cabal.outputs.cabal-store }}
dist-newstyle
key: ${{ runner.os }}-${{ matrix.ghc }}-${{ hashFiles('cabal.project.freeze') }}
restore-keys: |
${{ runner.os }}-${{ matrix.ghc }}-
- name: Configure
run: |
# Using separate store-dir because default one already has 'ghc-paths' package installed
# 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: |
cabal build all
- name: Test
run: |
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
# conflict with those of base-compat.
#
# FIXME: This is an ugly hack. Ultimately, we'll want to use cabal-doctest
# (or cabal v2-doctest, if it ever lands) to provide a clean GHC environment.
# This might allow running doctests in GHCJS build as well.
perl -i -e 'while (<ARGV>) { print unless /package-id\s+(base-compat-batteries)-\d+(\.\d+)*/; }' .ghc.environment.*
(cd servant && doctest src)
(cd servant-client && doctest src)
(cd servant-client-core && doctest src)
(cd servant-http-streams && doctest src)
(cd servant-docs && doctest src)
(cd servant-foreign && doctest src)
(cd servant-server && doctest src)
(cd servant-machines && doctest src)
(cd servant-conduit && doctest src)
(cd servant-pipes && doctest src)
stack:
name: stack / ghc ${{ matrix.ghc }}
runs-on: ubuntu-latest
strategy:
matrix:
stack: ["2.7.3"]
ghc: ["8.10.4"]
steps:
- uses: actions/checkout@v2
- uses: haskell/actions/setup@v1
name: Setup Haskell Stack
with:
ghc-version: ${{ matrix.ghc }}
stack-version: ${{ matrix.stack }}
- uses: actions/cache@v2.1.3
name: Cache ~/.stack
with:
path: ~/.stack
key: ${{ runner.os }}-${{ matrix.ghc }}-stack
- name: Install dependencies
run: |
stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks --only-dependencies
- name: Build
run: |
stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks
- name: Test
run: |
stack test --system-ghc
ghcjs:
name: ubuntu-latest / ghcjs 8.6
runs-on: "ubuntu-latest"
steps:
- uses: actions/checkout@v2
- uses: cachix/install-nix-action@v13
with:
extra_nix_config: |
trusted-public-keys = ryantrinkle.com-1:JJiAKaRv9mWgpVAz8dwewnZe0AzzEAzPkagE9SP5NWI=1aba6f367982bd6dd78ec2fda75ab246a62d32c5 cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
substituters = https://nixcache.reflex-frp.org https://cache.nixos.org/
- name: Setup
run: |
# Override cabal.project with the lightweight GHCJS one
cp cabal.ghcjs.project cabal.project
cat cabal.project
nix-shell ghcjs.nix --run "cabal v2-update && cabal v2-freeze"
- uses: actions/cache@v2.1.3
name: Cache ~/.cabal/store and dist-newstyle
with:
path: |
~/.cabal/store
dist-newstyle
key: ${{ runner.os }}-ghcjs8.6-${{ hashFiles('cabal.project.freeze') }}
restore-keys: |
${{ runner.os }}-ghcjs8.6-
- name: Build
run: |
nix-shell ghcjs.nix --run "cabal v2-build --ghcjs --enable-tests --enable-benchmarks all"
- name: Tests
run: |
nix-shell ghcjs.nix --run ".github/run-ghcjs-tests.sh"

5
.gitignore vendored
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@ -1,4 +1,5 @@
**/*/dist
*~
dist-*
.ghc.environment.*
/bin
@ -29,6 +30,10 @@ doc/_build
doc/venv
doc/tutorial/static/api.js
doc/tutorial/static/jq.js
shell.nix
# nix
result*
# local versions of things
servant-multipart

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@ -1,322 +0,0 @@
# This Travis job script has been generated by a script via
#
# haskell-ci '--config=cabal.haskell-ci' '--output=.travis.yml' 'cabal.project'
#
# For more information, see https://github.com/haskell-CI/haskell-ci
#
# version: 0.9.20200110
#
version: ~> 1.0
language: c
os: linux
dist: bionic
git:
# whether to recursively clone submodules
submodules: false
branches:
only:
- master
addons:
google: stable
cache:
directories:
- $HOME/.cabal/packages
- $HOME/.cabal/store
- $HOME/.hlint
before_cache:
- rm -fv $CABALHOME/packages/hackage.haskell.org/build-reports.log
# remove files that are regenerated by 'cabal update'
- rm -fv $CABALHOME/packages/hackage.haskell.org/00-index.*
- rm -fv $CABALHOME/packages/hackage.haskell.org/*.json
- rm -fv $CABALHOME/packages/hackage.haskell.org/01-index.cache
- rm -fv $CABALHOME/packages/hackage.haskell.org/01-index.tar
- rm -fv $CABALHOME/packages/hackage.haskell.org/01-index.tar.idx
- rm -rfv $CABALHOME/packages/head.hackage
jobs:
include:
- compiler: ghcjs-8.4
addons: {"apt":{"sources":[{"sourceline":"deb http://ppa.launchpad.net/hvr/ghc/ubuntu bionic main","key_url":"https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x063dab2bdc0b3f9fcebc378bff3aeacef6f88286"},{"sourceline":"deb http://ppa.launchpad.net/hvr/ghcjs/ubuntu bionic main"},{"sourceline":"deb https://deb.nodesource.com/node_10.x bionic main","key_url":"https://deb.nodesource.com/gpgkey/nodesource.gpg.key"}],"packages":["ghcjs-8.4","cabal-install-3.0","ghc-8.4.4","nodejs"]}}
os: linux
- compiler: ghc-8.8.1
addons: {"apt":{"sources":[{"sourceline":"deb http://ppa.launchpad.net/hvr/ghc/ubuntu bionic main","key_url":"https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x063dab2bdc0b3f9fcebc378bff3aeacef6f88286"}],"packages":["ghc-8.8.1","cabal-install-3.0"]}}
os: linux
- compiler: ghc-8.6.5
addons: {"apt":{"sources":[{"sourceline":"deb http://ppa.launchpad.net/hvr/ghc/ubuntu bionic main","key_url":"https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x063dab2bdc0b3f9fcebc378bff3aeacef6f88286"}],"packages":["ghc-8.6.5","cabal-install-3.0"]}}
os: linux
- compiler: ghc-8.4.4
addons: {"apt":{"sources":[{"sourceline":"deb http://ppa.launchpad.net/hvr/ghc/ubuntu bionic main","key_url":"https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x063dab2bdc0b3f9fcebc378bff3aeacef6f88286"}],"packages":["ghc-8.4.4","cabal-install-3.0"]}}
os: linux
- compiler: ghc-8.2.2
addons: {"apt":{"sources":[{"sourceline":"deb http://ppa.launchpad.net/hvr/ghc/ubuntu bionic main","key_url":"https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x063dab2bdc0b3f9fcebc378bff3aeacef6f88286"}],"packages":["ghc-8.2.2","cabal-install-3.0"]}}
os: linux
- compiler: ghc-8.0.2
addons: {"apt":{"sources":[{"sourceline":"deb http://ppa.launchpad.net/hvr/ghc/ubuntu bionic main","key_url":"https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x063dab2bdc0b3f9fcebc378bff3aeacef6f88286"}],"packages":["ghc-8.0.2","cabal-install-3.0"]}}
os: linux
before_install:
- |
if echo $CC | grep -q ghcjs; then
GHCJS=true;
else
GHCJS=false;
fi
- HC=$(echo "/opt/$CC/bin/ghc" | sed 's/-/\//')
- WITHCOMPILER="-w $HC"
- if $GHCJS ; then HC=${HC}js ; fi
- if $GHCJS ; then WITHCOMPILER="--ghcjs ${WITHCOMPILER}js" ; fi
- HADDOCK=$(echo "/opt/$CC/bin/haddock" | sed 's/-/\//')
- if $GHCJS ; then PATH="/opt/ghc/8.4.4/bin:$PATH" ; fi
- HCPKG="$HC-pkg"
- unset CC
- CABAL=/opt/ghc/bin/cabal
- CABALHOME=$HOME/.cabal
- export PATH="$CABALHOME/bin:$PATH"
- TOP=$(pwd)
- "HCNUMVER=$(${HC} --numeric-version|perl -ne '/^(\\d+)\\.(\\d+)\\.(\\d+)(\\.(\\d+))?$/; print(10000 * $1 + 100 * $2 + ($3 == 0 ? $5 != 1 : $3))')"
- echo $HCNUMVER
- CABAL="$CABAL -vnormal+nowrap"
- set -o pipefail
install:
- ${CABAL} --version
- echo "$(${HC} --version) [$(${HC} --print-project-git-commit-id 2> /dev/null || echo '?')]"
- node --version
- echo $GHCJS
- TEST=--enable-tests
- BENCH=--enable-benchmarks
- HEADHACKAGE=false
- rm -f $CABALHOME/config
- |
echo "verbose: normal +nowrap +markoutput" >> $CABALHOME/config
echo "remote-build-reporting: anonymous" >> $CABALHOME/config
echo "write-ghc-environment-files: always" >> $CABALHOME/config
echo "remote-repo-cache: $CABALHOME/packages" >> $CABALHOME/config
echo "logs-dir: $CABALHOME/logs" >> $CABALHOME/config
echo "world-file: $CABALHOME/world" >> $CABALHOME/config
echo "extra-prog-path: $CABALHOME/bin" >> $CABALHOME/config
echo "symlink-bindir: $CABALHOME/bin" >> $CABALHOME/config
echo "installdir: $CABALHOME/bin" >> $CABALHOME/config
echo "build-summary: $CABALHOME/logs/build.log" >> $CABALHOME/config
echo "store-dir: $CABALHOME/store" >> $CABALHOME/config
echo "install-dirs user" >> $CABALHOME/config
echo " prefix: $CABALHOME" >> $CABALHOME/config
echo "repository hackage.haskell.org" >> $CABALHOME/config
echo " url: http://hackage.haskell.org/" >> $CABALHOME/config
echo " secure: True" >> $CABALHOME/config
echo " key-threshold: 3" >> $CABALHOME/config
echo " root-keys:" >> $CABALHOME/config
echo " fe331502606802feac15e514d9b9ea83fee8b6ffef71335479a2e68d84adc6b0" >> $CABALHOME/config
echo " 1ea9ba32c526d1cc91ab5e5bd364ec5e9e8cb67179a471872f6e26f0ae773d42" >> $CABALHOME/config
echo " 2c6c3627bd6c982990239487f1abd02e08a02e6cf16edb105a8012d444d870c3" >> $CABALHOME/config
echo " 0a5c7ea47cd1b15f01f5f51a33adda7e655bc0f0b0615baa8e271f4c3351e21d" >> $CABALHOME/config
echo " 51f0161b906011b52c6613376b1ae937670da69322113a246a09f807c62f6921" >> $CABALHOME/config
- GHCJOBS=-j2
- |
echo "program-default-options" >> $CABALHOME/config
echo " ghc-options: $GHCJOBS +RTS -M6G -RTS" >> $CABALHOME/config
- cat $CABALHOME/config
- rm -fv cabal.project cabal.project.local cabal.project.freeze
- travis_retry ${CABAL} v2-update -v
- if ! $GHCJS ; then (cd /tmp && ${CABAL} v2-install $WITHCOMPILER -j2 doctest --constraint='doctest ==0.16.2.*') ; fi
- if $GHCJS ; then (cd /tmp && ${CABAL} v2-install -w ghc-8.4.4 cabal-plan --constraint='cabal-plan ^>=0.6.0.0' --constraint='cabal-plan +exe') ; fi
- if $GHCJS ; then (cd /tmp && ${CABAL} v2-install -w ghc-8.4.4 hspec-discover) ; fi
# Generate cabal.project
- rm -rf cabal.project cabal.project.local cabal.project.freeze
- touch cabal.project
- |
echo "packages: servant" >> cabal.project
if ! $GHCJS ; then echo "packages: servant-client" >> cabal.project ; fi
echo "packages: servant-client-core" >> cabal.project
if ! $GHCJS ; then echo "packages: servant-http-streams" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: servant-docs" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: servant-foreign" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: servant-server" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: doc/tutorial" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: servant-machines" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: servant-conduit" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: servant-pipes" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/basic-auth" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/curl-mock" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/basic-streaming" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/db-postgres-pool" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/file-upload" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/generic" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/pagination" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/testing" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/structuring-apis" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/using-custom-monad" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: doc/cookbook/using-free-client" >> cabal.project ; fi
- |
echo "constraints: foundation >=0.0.14" >> cabal.project
echo "constraints: memory <0.14.12 || >0.14.12" >> cabal.project
echo "constraints: sqlite-simple < 0" >> cabal.project
echo "constraints: base-compat ^>=0.11" >> cabal.project
echo "allow-newer: aeson-pretty-0.8.7:base-compat" >> cabal.project
echo "allow-newer: vault-0.3.1.2:hashable" >> cabal.project
echo "allow-newer: psqueues-0.2.7.1:hashable" >> cabal.project
echo "allow-newer: sqlite-simple-0.4.16.0:semigroups" >> cabal.project
echo "allow-newer: direct-sqlite-2.3.24:semigroups" >> cabal.project
echo "allow-newer: io-streams-1.5.1.0:network" >> cabal.project
echo "allow-newer: io-streams-1.5.1.0:primitive" >> cabal.project
echo "allow-newer: openssl-streams-1.2.2.0:network" >> cabal.project
echo "optimization: False" >> cabal.project
- "for pkg in $($HCPKG list --simple-output); do echo $pkg | sed 's/-[^-]*$//' | (grep -vE -- '^(cookbook-basic-auth|cookbook-basic-streaming|cookbook-curl-mock|cookbook-db-postgres-pool|cookbook-file-upload|cookbook-generic|cookbook-pagination|cookbook-structuring-apis|cookbook-testing|cookbook-using-custom-monad|cookbook-using-free-client|servant|servant-client|servant-client-core|servant-conduit|servant-docs|servant-foreign|servant-http-streams|servant-machines|servant-pipes|servant-server|tutorial)$' || true) | sed 's/^/constraints: /' | sed 's/$/ installed/' >> cabal.project.local; done"
- cat cabal.project || true
- cat cabal.project.local || true
- if [ -f "servant/configure.ac" ]; then (cd "servant" && autoreconf -i); fi
- if [ -f "servant-client/configure.ac" ]; then (cd "servant-client" && autoreconf -i); fi
- if [ -f "servant-client-core/configure.ac" ]; then (cd "servant-client-core" && autoreconf -i); fi
- if [ -f "servant-http-streams/configure.ac" ]; then (cd "servant-http-streams" && autoreconf -i); fi
- if [ -f "servant-docs/configure.ac" ]; then (cd "servant-docs" && autoreconf -i); fi
- if [ -f "servant-foreign/configure.ac" ]; then (cd "servant-foreign" && autoreconf -i); fi
- if [ -f "servant-server/configure.ac" ]; then (cd "servant-server" && autoreconf -i); fi
- if [ -f "doc/tutorial/configure.ac" ]; then (cd "doc/tutorial" && autoreconf -i); fi
- if [ -f "servant-machines/configure.ac" ]; then (cd "servant-machines" && autoreconf -i); fi
- if [ -f "servant-conduit/configure.ac" ]; then (cd "servant-conduit" && autoreconf -i); fi
- if [ -f "servant-pipes/configure.ac" ]; then (cd "servant-pipes" && autoreconf -i); fi
- if [ -f "doc/cookbook/basic-auth/configure.ac" ]; then (cd "doc/cookbook/basic-auth" && autoreconf -i); fi
- if [ -f "doc/cookbook/curl-mock/configure.ac" ]; then (cd "doc/cookbook/curl-mock" && autoreconf -i); fi
- if [ -f "doc/cookbook/basic-streaming/configure.ac" ]; then (cd "doc/cookbook/basic-streaming" && autoreconf -i); fi
- if [ -f "doc/cookbook/db-postgres-pool/configure.ac" ]; then (cd "doc/cookbook/db-postgres-pool" && autoreconf -i); fi
- if [ -f "doc/cookbook/file-upload/configure.ac" ]; then (cd "doc/cookbook/file-upload" && autoreconf -i); fi
- if [ -f "doc/cookbook/generic/configure.ac" ]; then (cd "doc/cookbook/generic" && autoreconf -i); fi
- if [ -f "doc/cookbook/pagination/configure.ac" ]; then (cd "doc/cookbook/pagination" && autoreconf -i); fi
- if [ -f "doc/cookbook/testing/configure.ac" ]; then (cd "doc/cookbook/testing" && autoreconf -i); fi
- if [ -f "doc/cookbook/structuring-apis/configure.ac" ]; then (cd "doc/cookbook/structuring-apis" && autoreconf -i); fi
- if [ -f "doc/cookbook/using-custom-monad/configure.ac" ]; then (cd "doc/cookbook/using-custom-monad" && autoreconf -i); fi
- if [ -f "doc/cookbook/using-free-client/configure.ac" ]; then (cd "doc/cookbook/using-free-client" && autoreconf -i); fi
- ${CABAL} v2-freeze $WITHCOMPILER ${TEST} ${BENCH}
- "cat cabal.project.freeze | sed -E 's/^(constraints: *| *)//' | sed 's/any.//'"
- rm cabal.project.freeze
script:
- DISTDIR=$(mktemp -d /tmp/dist-test.XXXX)
# Packaging...
- echo 'Packaging...' && echo -en 'travis_fold:start:sdist\\r'
- ${CABAL} v2-sdist all
- echo -en 'travis_fold:end:sdist\\r'
# Unpacking...
- echo 'Unpacking...' && echo -en 'travis_fold:start:unpack\\r'
- mv dist-newstyle/sdist/*.tar.gz ${DISTDIR}/
- cd ${DISTDIR} || false
- find . -maxdepth 1 -type f -name '*.tar.gz' -exec tar -xvf '{}' \;
- find . -maxdepth 1 -type f -name '*.tar.gz' -exec rm '{}' \;
- PKGDIR_servant="$(find . -maxdepth 1 -type d -regex '.*/servant-[0-9.]*')"
- PKGDIR_servant_client="$(find . -maxdepth 1 -type d -regex '.*/servant-client-[0-9.]*')"
- PKGDIR_servant_client_core="$(find . -maxdepth 1 -type d -regex '.*/servant-client-core-[0-9.]*')"
- PKGDIR_servant_http_streams="$(find . -maxdepth 1 -type d -regex '.*/servant-http-streams-[0-9.]*')"
- PKGDIR_servant_docs="$(find . -maxdepth 1 -type d -regex '.*/servant-docs-[0-9.]*')"
- PKGDIR_servant_foreign="$(find . -maxdepth 1 -type d -regex '.*/servant-foreign-[0-9.]*')"
- PKGDIR_servant_server="$(find . -maxdepth 1 -type d -regex '.*/servant-server-[0-9.]*')"
- PKGDIR_tutorial="$(find . -maxdepth 1 -type d -regex '.*/tutorial-[0-9.]*')"
- PKGDIR_servant_machines="$(find . -maxdepth 1 -type d -regex '.*/servant-machines-[0-9.]*')"
- PKGDIR_servant_conduit="$(find . -maxdepth 1 -type d -regex '.*/servant-conduit-[0-9.]*')"
- PKGDIR_servant_pipes="$(find . -maxdepth 1 -type d -regex '.*/servant-pipes-[0-9.]*')"
- PKGDIR_cookbook_basic_auth="$(find . -maxdepth 1 -type d -regex '.*/cookbook-basic-auth-[0-9.]*')"
- PKGDIR_cookbook_curl_mock="$(find . -maxdepth 1 -type d -regex '.*/cookbook-curl-mock-[0-9.]*')"
- PKGDIR_cookbook_basic_streaming="$(find . -maxdepth 1 -type d -regex '.*/cookbook-basic-streaming-[0-9.]*')"
- PKGDIR_cookbook_db_postgres_pool="$(find . -maxdepth 1 -type d -regex '.*/cookbook-db-postgres-pool-[0-9.]*')"
- PKGDIR_cookbook_file_upload="$(find . -maxdepth 1 -type d -regex '.*/cookbook-file-upload-[0-9.]*')"
- PKGDIR_cookbook_generic="$(find . -maxdepth 1 -type d -regex '.*/cookbook-generic-[0-9.]*')"
- PKGDIR_cookbook_pagination="$(find . -maxdepth 1 -type d -regex '.*/cookbook-pagination-[0-9.]*')"
- PKGDIR_cookbook_testing="$(find . -maxdepth 1 -type d -regex '.*/cookbook-testing-[0-9.]*')"
- PKGDIR_cookbook_structuring_apis="$(find . -maxdepth 1 -type d -regex '.*/cookbook-structuring-apis-[0-9.]*')"
- PKGDIR_cookbook_using_custom_monad="$(find . -maxdepth 1 -type d -regex '.*/cookbook-using-custom-monad-[0-9.]*')"
- PKGDIR_cookbook_using_free_client="$(find . -maxdepth 1 -type d -regex '.*/cookbook-using-free-client-[0-9.]*')"
# Generate cabal.project
- rm -rf cabal.project cabal.project.local cabal.project.freeze
- touch cabal.project
- |
echo "packages: ${PKGDIR_servant}" >> cabal.project
if ! $GHCJS ; then echo "packages: ${PKGDIR_servant_client}" >> cabal.project ; fi
echo "packages: ${PKGDIR_servant_client_core}" >> cabal.project
if ! $GHCJS ; then echo "packages: ${PKGDIR_servant_http_streams}" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: ${PKGDIR_servant_docs}" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: ${PKGDIR_servant_foreign}" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: ${PKGDIR_servant_server}" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: ${PKGDIR_tutorial}" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: ${PKGDIR_servant_machines}" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: ${PKGDIR_servant_conduit}" >> cabal.project ; fi
if ! $GHCJS ; then echo "packages: ${PKGDIR_servant_pipes}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_basic_auth}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_curl_mock}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_basic_streaming}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_db_postgres_pool}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_file_upload}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_generic}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_pagination}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_testing}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_structuring_apis}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_using_custom_monad}" >> cabal.project ; fi
if ! $GHCJS && [ $HCNUMVER -ge 80400 ] ; then echo "packages: ${PKGDIR_cookbook_using_free_client}" >> cabal.project ; fi
- |
echo "constraints: foundation >=0.0.14" >> cabal.project
echo "constraints: memory <0.14.12 || >0.14.12" >> cabal.project
echo "constraints: sqlite-simple < 0" >> cabal.project
echo "constraints: base-compat ^>=0.11" >> cabal.project
echo "allow-newer: aeson-pretty-0.8.7:base-compat" >> cabal.project
echo "allow-newer: vault-0.3.1.2:hashable" >> cabal.project
echo "allow-newer: psqueues-0.2.7.1:hashable" >> cabal.project
echo "allow-newer: sqlite-simple-0.4.16.0:semigroups" >> cabal.project
echo "allow-newer: direct-sqlite-2.3.24:semigroups" >> cabal.project
echo "allow-newer: io-streams-1.5.1.0:network" >> cabal.project
echo "allow-newer: io-streams-1.5.1.0:primitive" >> cabal.project
echo "allow-newer: openssl-streams-1.2.2.0:network" >> cabal.project
echo "optimization: False" >> cabal.project
- "for pkg in $($HCPKG list --simple-output); do echo $pkg | sed 's/-[^-]*$//' | (grep -vE -- '^(cookbook-basic-auth|cookbook-basic-streaming|cookbook-curl-mock|cookbook-db-postgres-pool|cookbook-file-upload|cookbook-generic|cookbook-pagination|cookbook-structuring-apis|cookbook-testing|cookbook-using-custom-monad|cookbook-using-free-client|servant|servant-client|servant-client-core|servant-conduit|servant-docs|servant-foreign|servant-http-streams|servant-machines|servant-pipes|servant-server|tutorial)$' || true) | sed 's/^/constraints: /' | sed 's/$/ installed/' >> cabal.project.local; done"
- cat cabal.project || true
- cat cabal.project.local || true
- |
pkgdir() {
case $1 in
servant) echo ${PKGDIR_servant} ;;
servant-client) echo ${PKGDIR_servant_client} ;;
servant-client-core) echo ${PKGDIR_servant_client_core} ;;
servant-http-streams) echo ${PKGDIR_servant_http_streams} ;;
servant-docs) echo ${PKGDIR_servant_docs} ;;
servant-foreign) echo ${PKGDIR_servant_foreign} ;;
servant-server) echo ${PKGDIR_servant_server} ;;
tutorial) echo ${PKGDIR_tutorial} ;;
servant-machines) echo ${PKGDIR_servant_machines} ;;
servant-conduit) echo ${PKGDIR_servant_conduit} ;;
servant-pipes) echo ${PKGDIR_servant_pipes} ;;
cookbook-basic-auth) echo ${PKGDIR_cookbook_basic_auth} ;;
cookbook-curl-mock) echo ${PKGDIR_cookbook_curl_mock} ;;
cookbook-basic-streaming) echo ${PKGDIR_cookbook_basic_streaming} ;;
cookbook-db-postgres-pool) echo ${PKGDIR_cookbook_db_postgres_pool} ;;
cookbook-file-upload) echo ${PKGDIR_cookbook_file_upload} ;;
cookbook-generic) echo ${PKGDIR_cookbook_generic} ;;
cookbook-pagination) echo ${PKGDIR_cookbook_pagination} ;;
cookbook-testing) echo ${PKGDIR_cookbook_testing} ;;
cookbook-structuring-apis) echo ${PKGDIR_cookbook_structuring_apis} ;;
cookbook-using-custom-monad) echo ${PKGDIR_cookbook_using_custom_monad} ;;
cookbook-using-free-client) echo ${PKGDIR_cookbook_using_free_client} ;;
esac
}
- echo -en 'travis_fold:end:unpack\\r'
# Building with tests and benchmarks...
- echo 'Building with tests and benchmarks...' && echo -en 'travis_fold:start:build-everything\\r'
# build & run tests, build benchmarks
- ${CABAL} v2-build $WITHCOMPILER ${TEST} ${BENCH} all
- echo -en 'travis_fold:end:build-everything\\r'
# Testing...
- if ! $GHCJS ; then ${CABAL} v2-test $WITHCOMPILER ${TEST} ${BENCH} all ; fi
- if $GHCJS ; then cabal-plan list-bins '*:test:*' | while read -r line; do testpkg=$(echo "$line" | perl -pe 's/:.*//'); testexe=$(echo "$line" | awk '{ print $2 }'); echo "testing $textexe in package $textpkg"; (cd "$(pkgdir $testpkg)" && nodejs "$testexe".jsexe/all.js); done ; fi
# Doctest...
- echo 'Doctest...' && echo -en 'travis_fold:start:doctest\\r'
- perl -i -e 'while (<ARGV>) { print unless /package-id\s+(base-compat-batteries)-\d+(\.\d+)*/; }' .ghc.environment.*
- if ! $GHCJS ; then (cd ${PKGDIR_servant} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_client} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_client_core} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_http_streams} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_docs} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_foreign} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_server} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_machines} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_conduit} && doctest src) ; fi
- if ! $GHCJS ; then (cd ${PKGDIR_servant_pipes} && doctest src) ; fi
- echo -en 'travis_fold:end:doctest\\r'
# haddock...
- echo 'haddock...' && echo -en 'travis_fold:start:haddock\\r'
- if ! $GHCJS ; then ${CABAL} v2-haddock $WITHCOMPILER --with-haddock $HADDOCK ${TEST} ${BENCH} all ; fi
- echo -en 'travis_fold:end:haddock\\r'
# REGENDATA ("0.9.20200110",["--config=cabal.haskell-ci","--output=.travis.yml","cabal.project"])
# EOF

View file

@ -103,7 +103,7 @@ the `news` label if you make a new package so we can know about it!
## Release policy
We are currently moving to a more aggresive release policy, so that you can get
We are currently moving to a more aggressive release policy, so that you can get
what you contribute from Hackage fairly soon. However, note that prior to major
releases it may take some time in between releases.

View file

@ -1,32 +0,0 @@
# With common maintenance tasks
HC ?= ghc-8.4.4
all :
@echo "Don't try to make all at once!"
really-all :
$(MAKE) build-ghc
$(MAKE) build-ghc HC=ghc-8.0.2
$(MAKE) build-ghc HC=ghc-8.2.2
$(MAKE) build-ghc HC=ghc-8.6.5
$(MAKE) build-ghcjs
build-ghc :
cabal v2-build -w $(HC) all
build-ghcjs :
cabal v2-build --builddir=dist-newstyle-ghcjs --project-file=cabal.ghcjs.project all
packdeps :
packdeps */*.cabal
doctest : doctest-servant doctest-servant-server
perl -i -e 'while (<ARGV>) { print unless /package-id\s+base-compat-\d+(\.\d+)*/; }' .ghc.environment.*
doctest-servant :
(cd servant && doctest src)
(cd servant && doctest test/Servant/LinksSpec.hs)
doctest-servant-server :
(cd servant-server && doctest src)

View file

@ -9,11 +9,11 @@ introduces the core features of servant. After this article, you should be able
to write your first servant webservices, learning the rest from the haddocks'
examples.
The central documentation can be found [here](http://docs.servant.dev/).
The core documentation can be found [here](http://docs.servant.dev/).
Other blog posts, videos and slides can be found on the
[website](http://www.servant.dev/).
If you need help, drop by the IRC channel (#servant on freenode) or [mailing
If you need help, drop by the IRC channel (#haskell-servant on libera.chat) or [mailing
list](https://groups.google.com/forum/#!forum/haskell-servant).
## Contributing
@ -32,7 +32,7 @@ See `CONTRIBUTING.md`
- It's a good idea to separate these steps, as tests often pass, if they compile :)
- See `cabal.project` to selectively `allow-newer`
- If some packages are broken, on your discretisation there are two options:
- Fix them and make PRs: it's good idea to test against older `servant` version too.
- Fix them and make PRs: it's a good idea to test against older `servant` version too.
- Temporarily comment out broken package
- If you make a commit for `servant-universe`, you can use it as submodule in private projects to test even more
- When ripples are cleared out:
@ -40,29 +40,9 @@ See `CONTRIBUTING.md`
- `git push --tags`
- `cabal sdist` and `cabal upload`
## travis
## TechEmpower framework benchmarks
`.travis.yml` is generated using `make-travis-yml` tool, in
[multi-ghc-travis](https://github.com/haskell-hvr/multi-ghc-travis) repository.
To regenerate the script use (*note:* atm you need to comment `doc/cookbook/` packages).
```sh
runghc ~/Documents/other-haskell/multi-ghc-travis/make_travis_yml_2.hs regenerate
```
In case Travis jobs fail due failing build of dependency, you can temporarily
add `constraints` to the `cabal.project`, and regenerate the `.travis.yml`.
For example, the following will disallow single `troublemaker-13.37` package version:
```
constraints:
troublemaker <13.37 && > 13.37
```
## TechEmpower framework bechmarks
We develop & maintain the servant TFB entry in https://github.com/haskell-servant/FrameworkBenchmarks/
We develop and maintain the servant TFB entry in https://github.com/haskell-servant/FrameworkBenchmarks/
To verify (i.e. compile and test that it works)
@ -82,4 +62,10 @@ To compare with `reitit` (Clojure framework)
./tfb --mode benchmark --test reitit reitit-async reitit-jdbc servant servant-beam servant-psql-simple --type json plaintext db fortune
```
And visualise the results at https://www.techempower.com/benchmarks/#section=test
You can see the visualised results at https://www.techempower.com/benchmarks/#section=test
## Nix
A developer shell.nix file is provided in the `nix` directory
See [nix/README.md](nix/README.md)

View file

@ -2,9 +2,13 @@
packages:
servant/
servant-client/
servant-client-core/
servant-jsaddle/
-- we need to tell cabal we are using GHCJS
compiler: ghcjs
tests: True
-- Constraints so that reflex-platform provided packages are selected.
constraints: attoparsec == 0.13.2.2
constraints: hashable == 1.3.0.0

View file

@ -1,25 +0,0 @@
distribution: bionic
folds: all-but-test
branches: master
jobs-selection: any
google-chrome: True
ghcjs-tests: True
doctest: True
doctest-filter-packages: base-compat-batteries
doctest-skip: tutorial
-- https://github.com/haskell/cabal/issues/6176
ghcjs-tools: hspec-discover
-- We have inplace packages (servant-js) so we skip installing dependencies in a separate step
install-dependencies: False
-- this speed-ups the build a little, but we have to check these for release
no-tests-no-benchmarks: False
unconstrained: False
-- Don't run cabal check, as cookbook examples won't pass it
cabal-check: False
-- ghc-options: -j2
jobs: :2

View file

@ -1,5 +1,11 @@
packages:
servant/
servant-auth/servant-auth
servant-auth/servant-auth-client
servant-auth/servant-auth-docs
servant-auth/servant-auth-server
servant-auth/servant-auth-swagger
servant-client/
servant-client-core/
servant-http-streams/
@ -22,17 +28,20 @@ packages:
packages:
doc/cookbook/basic-auth
doc/cookbook/curl-mock
doc/cookbook/custom-errors
doc/cookbook/basic-streaming
doc/cookbook/db-postgres-pool
-- doc/cookbook/db-sqlite-simple
doc/cookbook/db-sqlite-simple
doc/cookbook/file-upload
doc/cookbook/generic
-- doc/cookbook/hoist-server-with-context
-- doc/cookbook/https
-- doc/cookbook/jwt-and-basic-auth/
doc/cookbook/hoist-server-with-context
doc/cookbook/https
doc/cookbook/jwt-and-basic-auth
doc/cookbook/pagination
-- doc/cookbook/sentry
doc/cookbook/testing
-- Commented out because servant-quickcheck currently doesn't build.
-- doc/cookbook/testing
doc/cookbook/uverb
doc/cookbook/structuring-apis
doc/cookbook/using-custom-monad
doc/cookbook/using-free-client
@ -47,21 +56,20 @@ constraints:
foundation >=0.0.14,
memory <0.14.12 || >0.14.12
allow-newer: aeson-pretty-0.8.7:base-compat
allow-newer: vault-0.3.1.2:hashable
allow-newer: psqueues-0.2.7.1:hashable
allow-newer: sqlite-simple-0.4.16.0:semigroups
allow-newer: direct-sqlite-2.3.24:semigroups
allow-newer: io-streams-1.5.1.0:network
allow-newer: io-streams-1.5.1.0:primitive
allow-newer: openssl-streams-1.2.2.0:network
-- MonadFail
-- https://github.com/nurpax/sqlite-simple/issues/74
constraints: sqlite-simple < 0
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

9
changelog.d/1432 Normal file
View file

@ -0,0 +1,9 @@
synopsis: Fixes encoding of URL parameters in servant-client
prs: #1432
issues: #1418
description: {
Some applications use query parameters to pass arbitrary (non-unicode) binary
data. This change modifies how servant-client handles query parameters, so
that application developers can use `ToHttpApiData` to marshal binary data into
query parameters.
}

9
changelog.d/1477 Normal file
View file

@ -0,0 +1,9 @@
synopsis: Enable FlexibleContexts in Servant.API.ContentTypes
prs: #1477
description: {
Starting with GHC 9.2, UndecidableInstances no longer implies FlexibleContexts.
Add this extension where it's needed to make compilation succeed.
}

View file

@ -1,18 +0,0 @@
synopsis: Add NoContentVerb
prs: #1228 #1219
issues: #1028
significance: significant
description: {
The `NoContent` API endpoints should now use `NoContentVerb` combinator.
The API type changes are usually of the kind
```diff
- :<|> PostNoContent '[JSON] NoContent
+ :<|> PostNoContent
```
i.e. one doesn't need to specify the content-type anymore. There is no content.
}

View file

@ -1,12 +0,0 @@
synopsis: Fix Verb with headers checking content type differently
packages: servant-client-core servant-client
prs: #1204
issues: #1200
packages: servant-client servant-client-core servant-http-streams
description: {
For `Verb`s with response `Headers`, the implementation didn't check
for the content-type of the response. Now it does.
}

View file

@ -1,16 +0,0 @@
synopsis: Merge documentation from duplicate routes
packages: servant-docs
prs: #1241
issues: #1240
description: {
Servant supports defining the same route multiple times with different
content-types and result-types, but servant-docs was only documenting
the first of copy of such duplicated routes. It now combines the
documentation from all the copies.
Unfortunately, it is not yet possible for the documentation to specify
multiple status codes.
}

View file

@ -1,3 +0,0 @@
synopsis: Progress on servant-jsaddle
packages: servant-jsaddle
prs: #1216

View file

@ -1,17 +0,0 @@
synopsis: `Capture` can be `Lenient`
issues: #1155
prs: #1156
significance: significant
description: {
You can specify a lenient capture as
```haskell
:<|> "capture-lenient" :> Capture' '[Lenient] "foo" Int :> GET
```
which will make the capture always succeed. Handlers will be of the
type `Either String CapturedType`, where `Left err` represents
the possible parse failure.
}

View file

@ -1,7 +0,0 @@
synopsis: Add sponsorship button
prs: #1190
description: {
[Well-Typed](https://www.well-typed.com/)
}

View file

@ -1,3 +0,0 @@
synopsis: Prevent race-conditions in testing
packages: servant-docs
prs: #1194

View file

@ -1,4 +0,0 @@
synopsis: `HasClient` instance for `Stream` with `Headers`
packages: servant-client servant-client servant-http-streams
prs: #1197
issues: #1170

View file

@ -1,3 +0,0 @@
synopsis: Remove unused extensions from cabal file
packages: servant
prs: #1201

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@ -1,12 +0,0 @@
synopsis: Added a function to create Client.Request in ClientEnv
packages: servant-client
significance: significant
prs: #1213 #1255
description: {
The new member `makeClientRequest` of `ClientEnv` is used to create
`http-client` `Request` from `servant-client-core` `Request`.
This functionality can be used for example to set
dynamic timeouts for each request.
}

View file

@ -1,3 +0,0 @@
synopsis: Redact the authorization header in Show and exceptions
packages: servant-client
prs: #1238

View file

@ -1,15 +0,0 @@
synopsis: use queryString to parse QueryParam, QueryParams and QueryFlag
packages: servant-server
prs: #1249 #1262
significance: significant
description: {
Some APIs need query parameters rewriting, e.g. in order to support
for multiple casing (camel, snake, etc) or something to that effect.
This could be easily achieved by using WAI Middleware and modyfing
request's `Query`. But QueryParam, QueryParams and QueryFlag use
`rawQueryString`. By using `queryString` rather then `rawQueryString`
we can enable such rewritings.
}

View file

@ -1,11 +0,0 @@
synopsis: Make packages `build-type: Simple`
packages: servant servant-server
prs: #1263
significance: significant
description: {
We used `build-type: Custom`, but it's problematic e.g.
for cross-compiling. The benefit is small, as the doctests
can be run other ways too (though not so conviniently).
}

View file

@ -0,0 +1,16 @@
synopsis: Add sample cURL requests to generated documentation
prs: #1401
description: {
Add sample cURL requests to generated documentation.
Those supplying changes to the Request `header` field manually using
lenses will need to add a sample bytestring value.
`headers <>~ ["unicorn"]`
becomes
`headers <>~ [("unicorn", "sample value")]`
}

View file

@ -1,8 +0,0 @@
synopsis: Try changelog-d for changelog management
prs: #1230
description: {
Check the [CONTRIBUTING.md](https://github.com/haskell-servant/servant/blob/master/CONTRIBUTING.md) for details
}

View file

@ -1,19 +0,0 @@
synopsis: CI and testing tweaks.
prs:
#1154
#1157
#1182
#1214
#1229
#1233
#1242
#1247
#1250
#1258
description: {
We are experiencing some bitrotting of cookbook recipe dependencies,
therefore some of them aren't build as part of our CI anymore.
}

View file

@ -1,9 +0,0 @@
synopsis: New cookbook recipes
prs: #1171 #1088 #1198
description: {
- [OIDC Recipe](#TODO)
- [MySQL Recipe](#TODO)
}

View file

@ -1,9 +0,0 @@
synopsis: Dependency upgrades
prs:
#1173
#1181
#1183
#1188
#1224
#1245
#1257

View file

@ -1,8 +0,0 @@
synopsis: Documentation updates
prs:
#1162
#1174
#1175
#1234
#1244
#1247

38
default.nix Normal file
View file

@ -0,0 +1,38 @@
with (builtins.fromJSON (builtins.readFile ./nix/nixpkgs.json));
{
pkgs ? import (builtins.fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/${rev}.tar.gz";
inherit sha256;
}) {}
, compiler ? "ghc883"
}:
let
overrides = self: super: {
servant = self.callCabal2nix "servant" ./servant {};
servant-docs = self.callCabal2nix "servant-docs" ./servant-docs {};
servant-pipes = self.callCabal2nix "servant-pipes" ./servant-pipes {};
servant-server = self.callCabal2nix "servant-server" ./servant-server {};
servant-client = self.callCabal2nix "servant-client" ./servant-client {};
servant-foreign = self.callCabal2nix "servant-foreign" ./servant-foreign {};
servant-conduit = self.callCabal2nix "servant-conduit" ./servant-conduit {};
servant-machines = self.callCabal2nix "servant-machines" ./servant-machines {};
servant-client-core = self.callCabal2nix "servant-client-core" ./servant-client-core {};
servant-http-streams = self.callCabal2nix "servant-http-streams" ./servant-http-streams {};
};
hPkgs = pkgs.haskell.packages.${compiler}.override { inherit overrides; };
in
with hPkgs;
{
inherit
servant
servant-client
servant-client-core
servant-conduit
servant-docs
servant-foreign
servant-http-streams
servant-machines
servant-pipes
servant-server;
}

View file

@ -2,13 +2,13 @@ name: cookbook-basic-auth
version: 0.1
synopsis: Basic Authentication cookbook example
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-basic-auth
main-is: BasicAuth.lhs

View file

@ -8,7 +8,10 @@ In other words, without streaming libraries.
- Some basic usage doesn't require usage of streaming libraries,
like `conduit`, `pipes`, `machines` or `streaming`.
We have bindings for them though.
- This is similar example file, which is bundled with each of the packages (TODO: links)
- Similar example is bundled with each of our streaming library interop packages (see
[servant-pipes](https://github.com/haskell-servant/servant/blob/master/servant-pipes/example/Main.hs),
[servant-conduit](https://github.com/haskell-servant/servant/blob/master/servant-conduit/example/Main.hs) and
[servant-machines](https://github.com/haskell-servant/servant/blob/master/servant-machines/example/Main.hs))
- `SourceT` doesn't have *Prelude* with handy combinators, so we have to write
things ourselves. (Note to self: `mapM` and `foldM` would be handy to have).

View file

@ -2,13 +2,13 @@ name: cookbook-basic-streaming
version: 2.1
synopsis: Streaming in servant without streaming libs
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-basic-streaming
main-is: Streaming.lhs

View file

@ -1,7 +1,7 @@
# Generating mock curl calls
In this example we will generate curl requests with mock post data from a servant API.
This may be usefull for testing and development purposes.
This may be useful for testing and development purposes.
Especially post requests with a request body are tedious to send manually.
Also, we will learn how to use the servant-foreign library to generate stuff from servant APIs.
@ -24,7 +24,6 @@ Language extensions and imports:
import Control.Lens ((^.))
import Data.Aeson
import Data.Aeson.Text
import Data.Monoid ((<>))
import Data.Proxy (Proxy (Proxy))
import Data.Text (Text)
import Data.Text.Encoding (decodeUtf8)
@ -86,7 +85,7 @@ listFromAPI :: (HasForeign lang ftype api, GenerateList ftype (Foreign ftype api
```
This looks a bit confusing...
[Here](https://hackage.haskell.org/package/servant-foreign-0.11.1/docs/Servant-Foreign.html#t:HasForeignType) is the documentation for the `HasForeign` typeclass.
[Here](https://hackage.haskell.org/package/servant-foreign/docs/Servant-Foreign.html#t:HasForeign) is the documentation for the `HasForeign` typeclass.
We will not go into details here, but this allows us to create a value of type `ftype` for any type `a` in our API.
In our case we want to create a mock of every type `a`.
@ -130,24 +129,12 @@ generateCurl :: (GenerateList Mocked (Foreign Mocked api), HasForeign NoLang Moc
generateCurl p host =
fmap T.unlines body
where
body = foldr (\endp curlCalls -> mCons (generateEndpoint host endp) curlCalls) (return [])
body = mapM (generateEndpoint host)
$ listFromAPI (Proxy :: Proxy NoLang) (Proxy :: Proxy Mocked) p
```
To understand this function, better start at the end:
`listFromAPI` gives us a list of endpoints. We iterate over them (`foldr`) and call `generateEndpoint` for every endpoint.
As generate endpoint will not return `Text` but `IO Text` (remember we need some random bits to mock), we cannot just use the cons operator but need to build `IO [Text]` from `IO Text`s.
``` haskell
mCons :: IO a -> IO [a] -> IO [a]
mCons ele list =
ele >>= \e -> list >>= \l -> return ( e : l )
```
Now comes the juicy part; accessing the endpoints data:
First, `listFromAPI` gives us a list of `Req Mocked`. Each `Req` describes one endpoint from the API type.
We generate a curl call for each of them using the following helper.
``` haskell
generateEndpoint :: Text -> Req Mocked -> IO Text
@ -169,7 +156,7 @@ generateEndpoint host req =
`servant-foreign` offers a multitude of lenses to be used with `Req`-values.
`reqMethod` gives us a straigthforward `Network.HTTP.Types.Method`, `reqUrl` the url part and so on.
Just take a look at [the docs](https://hackage.haskell.org/package/servant-foreign-0.11.1/docs/Servant-Foreign.html).
Just take a look at [the docs](https://hackage.haskell.org/package/servant-foreign/docs/Servant-Foreign.html).
But how do we get our mocked json string? This seems to be a bit to short to be true:
@ -201,7 +188,7 @@ And now, lets hook it all up in our main function:
``` haskell
main :: IO ()
main =
generateCurl api "localhost:8081" >>= (\v -> T.IO.putStrLn v)
generateCurl api "localhost:8081" >>= T.IO.putStrLn
```
Done:
@ -213,6 +200,6 @@ curl -X POST -d '{"email":"wV򝣀_b򆎘:z񁊞򲙲!(3DM V","age":10,"name":"=|W"}
```
This is of course no complete curl call mock generator, many things including path arguments are missing.
But it correctly generate mock calls for simple POST requests.
But it correctly generates mock calls for simple POST requests.
Also, we now know how to use `HasForeignType` and `listFromAPI` to generate anything we want.

View file

@ -2,13 +2,13 @@ name: cookbook-curl-mock
version: 0.1
synopsis: Generate curl mock requests cookbook example
homepage: http://docs.servant.dev
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbock-curl-mock
main-is: CurlMock.lhs

View file

@ -0,0 +1,189 @@
# Customizing errors from Servant
Servant handles a lot of parsing and validation of the input request. When it can't parse something: query
parameters, URL parts or request body, it will return appropriate HTTP codes like 400 Bad Request.
These responses will contain the error message in their body without any formatting. However, it is often
desirable to be able to provide custom formatting for these error messages, for example, to wrap them in JSON.
Recently Servant got a way to add such formatting. This Cookbook chapter demonstrates how to use it.
Extensions and imports:
```haskell
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE PolyKinds #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
import Data.Aeson
import Data.Proxy
import Data.Text
import GHC.Generics
import Network.Wai
import Network.Wai.Handler.Warp
import Servant
import Data.String.Conversions
(cs)
import Servant.API.ContentTypes
```
The API (from `greet.hs` example in Servant sources):
```haskell
-- | A greet message data type
newtype Greet = Greet { _msg :: Text }
deriving (Generic, Show)
instance FromJSON Greet
instance ToJSON Greet
-- API specification
type TestApi =
-- GET /hello/:name?capital={true, false} returns a Greet as JSON
"hello" :> Capture "name" Text :> QueryParam "capital" Bool :> Get '[JSON] Greet
-- POST /greet with a Greet as JSON in the request body,
-- returns a Greet as JSON
:<|> "greet" :> ReqBody '[JSON] Greet :> Post '[JSON] Greet
-- DELETE /greet/:greetid
:<|> "greet" :> Capture "greetid" Text :> Delete '[JSON] NoContent
testApi :: Proxy TestApi
testApi = Proxy
-- Server-side handlers.
--
-- There's one handler per endpoint, which, just like in the type
-- that represents the API, are glued together using :<|>.
--
-- Each handler runs in the 'Handler' monad.
server :: Server TestApi
server = helloH :<|> postGreetH :<|> deleteGreetH
where helloH name Nothing = helloH name (Just False)
helloH name (Just False) = return . Greet $ "Hello, " <> name
helloH name (Just True) = return . Greet . toUpper $ "Hello, " <> name
postGreetH greet = return greet
deleteGreetH _ = return NoContent
```
## Error formatters
`servant-server` provides an `ErrorFormatter` type to specify how the error message will be
formatted. A formatter is just a function accepting three parameters:
- `TypeRep` from `Data.Typeable`: this is a runtime representation of the type of the combinator
(like `Capture` or `ReqBody`) that generated the error. It can be used to display its name (with
`show`) or even dynamically dispatch on the combinator type. See the docs for `Data.Typeable` and
`Type.Reflection` modules.
- `Request`: full information for the request that led to the error.
- `String`: specific error message from the combinator.
The formatter is expected to produce a `ServerError` which will be returned from the handler.
Additionally, there is `NotFoundErrorFormatter`, which accepts only `Request` and can customize the
error in case when no route can be matched (HTTP 404).
Let's make two formatters. First one will wrap our error in a JSON:
```json
{
"error": "ERROR MESSAGE",
"combinator": "NAME OF THE COMBINATOR"
}
```
Additionally, this formatter will examine the `Accept` header of the request and generate JSON
message only if client can accept it.
```haskell
customFormatter :: ErrorFormatter
customFormatter tr req err =
let
-- aeson Value which will be sent to the client
value = object ["combinator" .= show tr, "error" .= err]
-- Accept header of the request
accH = getAcceptHeader req
in
-- handleAcceptH is Servant's function that checks whether the client can accept a
-- certain message type.
-- In this case we call it with "Proxy '[JSON]" argument, meaning that we want to return a JSON.
case handleAcceptH (Proxy :: Proxy '[JSON]) accH value of
-- If client can't handle JSON, we just return the body the old way
Nothing -> err400 { errBody = cs err }
-- Otherwise, we return the JSON formatted body and set the "Content-Type" header.
Just (ctypeH, body) -> err400
{ errBody = body
, errHeaders = [("Content-Type", cs ctypeH)]
}
notFoundFormatter :: NotFoundErrorFormatter
notFoundFormatter req =
err404 { errBody = cs $ "Not found path: " <> rawPathInfo req }
```
If you don't need to react to the `Accept` header, you can just unconditionally return the JSON like
this (with `encode` from `Data.Aeson`):
```
err400
{ errBody = encode body
, errHeaders = [("Content-Type", "application/json")]
}
```
## Passing formatters to Servant
Servant uses the Context to configure formatters. You only need to add a value of type
`ErrorFormatters` to your context. This is a record with the following fields:
- `bodyParserErrorFormatter :: ErrorFormatter`
- `urlParseErrorFormatter :: ErrorFormatter`
- `headerParseErrorFormatter :: ErrorFormatter`
- `notFoundErrorFormatter :: NotFoundErrorFormatter`
Default formatters are exported as `defaultErrorFormatters`, so you can use record update syntax to
set the only ones you need:
```haskell
customFormatters :: ErrorFormatters
customFormatters = defaultErrorFormatters
{ bodyParserErrorFormatter = customFormatter
, notFoundErrorFormatter = notFoundFormatter
}
```
And at last, use `serveWithContext` to run your server as usual:
```haskell
app :: Application
app = serveWithContext testApi (customFormatters :. EmptyContext) server
main :: IO ()
main = run 8000 app
```
Now if we try to request something with a wrong body, we will get a nice error:
```
$ http -j POST localhost:8000/greet 'foo=bar'
HTTP/1.1 400 Bad Request
Content-Type: application/json;charset=utf-8
Date: Fri, 17 Jul 2020 13:34:18 GMT
Server: Warp/3.3.12
Transfer-Encoding: chunked
{
"combinator": "ReqBody'",
"error": "Error in $: parsing Main.Greet(Greet) failed, key \"_msg\" not found"
}
```
Notice the `Content-Type` header set by our combinator.

View file

@ -0,0 +1,25 @@
name: cookbook-custom-errors
version: 0.1
synopsis: Return custom error messages from combinators
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
cabal-version: >=1.10
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-custom-errors
main-is: CustomErrors.lhs
build-depends: base == 4.*
, aeson
, servant
, servant-server
, string-conversions
, text
, wai
, warp
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit
build-tool-depends: markdown-unlit:markdown-unlit

View file

@ -2,7 +2,7 @@
This doc will walk through a single-module implementation of a servant API connecting to a MySQL database. It will also include some basic CRUD operations.
Once you can wrap your head around this implemenation, understanding more complex features like resource pools would be beneficial next steps.
Once you can wrap your head around this implementation, understanding more complex features like resource pools would be beneficial next steps.
The only *prerequisite* is that you have a MySQL database open on port 3306 of your machine. Docker is an easy way to manage this.

View file

@ -2,7 +2,7 @@ name: mysql-basics
version: 0.1.0.0
synopsis: Simple MySQL API cookbook example
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com

View file

@ -2,13 +2,13 @@ name: cookbook-db-postgres-pool
version: 0.1
synopsis: Simple PostgreSQL connection pool cookbook example
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-db-postgres-pool
main-is: PostgresPool.lhs

View file

@ -2,13 +2,13 @@ name: cookbook-db-sqlite-simple
version: 0.1
synopsis: Simple SQLite DB cookbook example
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-db-sqlite-simple
main-is: DBConnection.lhs
@ -23,7 +23,7 @@ executable cookbook-db-sqlite-simple
, http-types >= 0.12
, markdown-unlit >= 0.4
, http-client >= 0.5
, sqlite-simple >= 0.4
, sqlite-simple >= 0.4.5.0
, transformers
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit

View file

@ -90,8 +90,8 @@ startServer = run 8080 (serve api upload)
Finally, a main function that brings up our server and
sends some test request with `http-client` (and not
servant-client this time, has servant-multipart does not
yet have support for client generation.
servant-client this time, as servant-multipart does not
yet have support for client generation).
``` haskell
main :: IO ()

View file

@ -2,13 +2,13 @@ name: cookbook-file-upload
version: 0.1
synopsis: File upload cookbook example
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-file-upload
main-is: FileUpload.lhs

View file

@ -43,13 +43,13 @@ api :: Proxy (ToServantApi Routes)
api = genericApi (Proxy :: Proxy Routes)
```
It's recommented to use `genericApi` function, as then you'll get
It's recommended to use `genericApi` function, as then you'll get
better error message, for example if you forget to `derive Generic`.
## Links
The clear advantage of record-based generics approach, is that
we can get safe links very conviently. We don't need to define endpoint types,
we can get safe links very conveniently. We don't need to define endpoint types,
as field accessors work as proxies:
```haskell
@ -67,7 +67,7 @@ routesLinks = allFieldLinks
## Client
Even more power starts to show when we generate a record of client functions.
Here we use `genericClientHoist` function, which let us simultaneously
Here we use `genericClientHoist` function, which lets us simultaneously
hoist the monad, in this case from `ClientM` to `IO`.
```haskell

View file

@ -2,13 +2,13 @@ name: cookbook-generic
version: 0.1
synopsis: Using custom monad to pass a state between handlers
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-using-custom-monad
main-is: Generic.lhs

View file

@ -254,7 +254,7 @@ loginHandler cookieSettings jwtSettings form = do
liftIO $ pushLogStrLn logset $ toLogStr logMsg
throwError err401
Just applyCookies -> do
let successMsg = logMsg{message = "AdminUser succesfully authenticated!"}
let successMsg = logMsg{message = "AdminUser successfully authenticated!"}
liftIO $ pushLogStrLn logset $ toLogStr successMsg
pure $ applyCookies successMsg
loginHandler _ _ _ = throwError err401
@ -287,7 +287,7 @@ mkApp cfg cs jwts ctx =
(flip runReaderT ctx) (adminServer cs jwts)
```
One footenote: because we'd like our logs to be in JSON form, we'll also create a `Middleware` object
One footnote: because we'd like our logs to be in JSON form, we'll also create a `Middleware` object
so that `Warp` *also* will emit logs as JSON. This will ensure *all* logs are emitted as JSON:
```haskell

View file

@ -4,14 +4,14 @@ synopsis: JWT and basic access authentication with a Custom Monad coo
description: Using servant-auth to support both JWT-based and basic
authentication.
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
category: Servant
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-hoist-server-with-context
main-is: HoistServerWithContext.lhs
@ -24,7 +24,7 @@ executable cookbook-hoist-server-with-context
, servant
, servant-server
, servant-auth >= 0.3.2
, servant-auth-server
, servant-auth-server >= 0.4.4.0
, time
, warp >= 3.2
, wai >= 3.2

View file

@ -34,16 +34,16 @@ app = serve api server
```
It's now time to actually run the `Application`.
The [`warp-tls`](https://hackage.haskell.org/package/warp-tls-3.2.4/docs/Network-Wai-Handler-WarpTLS.html)
The [`warp-tls`](https://hackage.haskell.org/package/warp-tls/docs/Network-Wai-Handler-WarpTLS.html)
package provides two functions for running an `Application`, called
[`runTLS`](https://hackage.haskell.org/package/warp-tls-3.2.4/docs/Network-Wai-Handler-WarpTLS.html#v:runTLS)
and [`runTLSSocket`](https://hackage.haskell.org/package/warp-tls-3.2.4/docs/Network-Wai-Handler-WarpTLS.html#v:runTLSSocket).
[`runTLS`](https://hackage.haskell.org/package/warp-tls/docs/Network-Wai-Handler-WarpTLS.html#v:runTLS)
and [`runTLSSocket`](https://hackage.haskell.org/package/warp-tls/docs/Network-Wai-Handler-WarpTLS.html#v:runTLSSocket).
We will be using the first one.
It takes two arguments,
[the TLS settings](https://hackage.haskell.org/package/warp-tls-3.2.4/docs/Network-Wai-Handler-WarpTLS.html#t:TLSSettings)
[the TLS settings](https://hackage.haskell.org/package/warp-tls/docs/Network-Wai-Handler-WarpTLS.html#t:TLSSettings)
(certificates, keys, ciphers, etc)
and [the warp settings](https://hackage.haskell.org/package/warp-3.2.12/docs/Network-Wai-Handler-Warp-Internal.html#t:Settings)
and [the warp settings](https://hackage.haskell.org/package/warp/docs/Network-Wai-Handler-Warp-Internal.html#t:Settings)
(port, logger, etc).
We will be using very simple settings for this example but you are of

View file

@ -2,13 +2,13 @@ name: cookbook-https
version: 0.1
synopsis: HTTPS cookbook example
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-https
main-is: Https.lhs
@ -17,7 +17,7 @@ executable cookbook-https
, servant-server
, wai >= 3.2
, warp >= 3.2
, warp-tls >= 3.2
, warp-tls >= 3.2.9
, markdown-unlit >= 0.4
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit

View file

@ -25,6 +25,8 @@ you name it!
db-postgres-pool/PostgresPool.lhs
using-custom-monad/UsingCustomMonad.lhs
using-free-client/UsingFreeClient.lhs
custom-errors/CustomErrors.lhs
uverb/UVerb.lhs
basic-auth/BasicAuth.lhs
basic-streaming/Streaming.lhs
jwt-and-basic-auth/JWTAndBasicAuth.lhs

View file

@ -4,14 +4,14 @@ synopsis: JWT and basic access authentication cookbook example
description: Using servant-auth to support both JWT-based and basic
authentication.
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
category: Servant
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-jwt-and-basic-auth
main-is: JWTAndBasicAuth.lhs
@ -22,7 +22,7 @@ executable cookbook-jwt-and-basic-auth
, servant
, servant-client
, servant-server
, servant-auth ==0.3.*
, servant-auth == 0.4.*
, servant-auth-server >= 0.3.1.0
, warp >= 3.2
, wai >= 3.2

View file

@ -2,13 +2,13 @@ name: open-id-connect
version: 0.1
synopsis: OpenId Connect with Servant example
homepage: http://haskell-servant.readthedocs.org/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >= 1.10
tested-with: GHC==8.4.4, GHC==8.6.5
tested-with: GHC==8.6.5
executable cookbook-openidconnect
main-is: OpenIdConnect.lhs

View file

@ -8,8 +8,8 @@ some login token would be saved in the user agent local storage.
Workflow:
1. user is presentend with a login button,
2. when the user click on the button it is redirected to the OIDC
1. user is presented with a login button,
2. when the user clicks on the button it is redirected to the OIDC
provider,
3. the user login in the OIDC provider,
4. the OIDC provider will redirect the user and provide a `code`,
@ -221,9 +221,9 @@ The `AuthInfo` is about the infos we can grab from OIDC provider.
To be more precise, the user should come with a `code` (a token) and
POSTing that code to the correct OIDC provider endpoint should return a JSON
object. One of the field should be named `id_token` which should be a
JWT containing all the informations we need. Depending on the scopes we
asked we might get more informations.
object. One of the fields should be named `id_token` which should be a
JWT containing all the information we need. Depending on the scopes we
asked we might get more information.
``` haskell
-- | @AuthInfo@
@ -248,16 +248,16 @@ instance JSON.ToJSON AuthInfo where
type LoginHandler = AuthInfo -> IO (Either Text User)
```
The `handleLoggedIn` is that part that will retrieve the informations from
The `handleLoggedIn` is that part that will retrieve the information from
the user once he is redirected from the OIDC Provider after login.
If the user is redirected to the `redirect_uri` but with an `error` query
parameter then it means something goes wrong.
parameter then it means something went wrong.
If there is no error query param but a `code` query param it means the user
sucessfully logged in. From there we need to make a request to the token
endpoint of the OIDC provider. Its a POST that should contains the code
as well as the client id & secret.
This is the role of the `requestTokens` to make this HTTP POST.
successfully logged in. From there we need to make a request to the token
endpoint of the OIDC provider. It's a POST that should contain the code
as well as the client id and secret.
Making this HTTP POST is the responsibility of `requestTokens`.
From there we extract the `claims` of the JWT contained in one of the value
of the JSON returned by the POST HTTP Request.
@ -329,12 +329,12 @@ data Customer = Customer {
}
```
Here is the code that display the homepage.
Here is the code that displays the homepage.
It should contain a link to the the `/login` URL.
When the user will click on this link it will be redirected to Google login page
with some generated informations.
When the user clicks on this link it will be redirected to Google login page
with some generated information.
The page also display the content of the local storage.
The page also displays the content of the local storage.
And in particular the items `api-key` and `user-id`.
Those items should be set after a successful login when the user is redirected to
`/login/cb`.
@ -366,7 +366,7 @@ instance ToMarkup Homepage where
We need some helpers to generate random string for generating state and API Keys.
``` haskell
-- | generate a random Bystestring, not necessarily extremely good randomness
-- | generate a random ByteString, not necessarily extremely good randomness
-- still the password will be long enough to be very difficult to crack
genRandomBS :: IO ByteString
genRandomBS = do

View file

@ -18,7 +18,7 @@ For example: `Range: createdAt 2017-01-15T23:14:67.000Z; offset 5; order desc` i
the client is willing to retrieve the next batch of document in descending order that were
created after the fifteenth of January, skipping the first 5.
As a response, the server may return the list of corresponding document, and augment the
As a response, the server may return the list of corresponding documents, and augment the
response with 3 headers:
- `Accept-Ranges`: A comma-separated list of fields upon which a range can be defined
@ -127,7 +127,7 @@ defaultRange =
getDefaultRange (Proxy @Color)
```
Note that `getFieldValue :: Proxy "name" -> Color -> String` is the minimal complete definintion
Note that `getFieldValue :: Proxy "name" -> Color -> String` is the minimal complete definition
of the class. Yet, you can define `getRangeOptions` to provide different parsing options (see
the last section of this guide). In the meantime, we've also defined a `defaultRange` as it will
come in handy when defining our handler.
@ -148,7 +148,7 @@ type MyHeaders =
```
`PageHeaders` is a type alias provided by the library to declare the necessary response headers
we mentionned in introduction. Expanding the alias boils down to the following:
we mentioned in introduction. Expanding the alias boils down to the following:
``` haskell
-- type MyHeaders =
@ -165,7 +165,7 @@ not, _servant-pagination_ provides an easy way to lift a collection of resources
#### Server
Time to connect the last bits by defining the server implementation of our colorful API. The `Ranges`
type we've defined above (tight to the `Range` HTTP header) indicates the server to parse any `Range`
type we've defined above (tied to the `Range` HTTP header) indicates the server to parse any `Range`
header, looking for the format defined in introduction with fields and target types we have just declared.
If no such header is provided, we will end up receiving `Nothing`. Otherwise, it will be possible
to _extract_ a `Range` from our `Ranges`.
@ -192,7 +192,7 @@ the format we defined, where `<field>` here can only be `name` and `<value>` mus
- `Range: <field> [<value>][; offset <o>][; limit <l>][; order <asc|desc>]`
Beside the target field, everything is pretty much optional in the `Range` HTTP header. Missing parts
are deducted from the `RangeOptions` that are part of the `HasPagination` instance. Therefore, all
are deduced from the `RangeOptions` that are part of the `HasPagination` instance. Therefore, all
following examples are valid requests to send to our server:
- 1 - `curl http://localhost:1442/colors -vH 'Range: name'`
@ -219,7 +219,7 @@ The previous ranges reads as follows:
Note that in the simple above scenario, there's no ambiguity with `extractRange` and `returnRange`
because there's only one possible `Range` defined on our resource. Yet, as you've most probably
noticed, the `Ranges` combinator accepts a list of fields, each of which must declare a `HasPagination`
instance. Doing so will make the other helper functions more ambiguous and type annotation are
instance. Doing so will make the other helper functions more ambiguous and type annotations are
highly likely to be needed.
@ -235,8 +235,8 @@ instance HasPagination Color "hex" where
#### Parsing Options
By default, `servant-pagination` provides an implementation of `getRangeOptions` for each
`HasPagination` instance. However, this can be overwritten when defining the instance to provide
your own options. This options come into play when a `Range` header is received and isn't fully
`HasPagination` instance. However, this can be overridden when defining the instance to provide
your own options. These options come into play when a `Range` header is received and isn't fully
specified (`limit`, `offset`, `order` are all optional) to provide default fallback values for those.
For instance, let's say we wanted to change the default limit to `5` in a new range on

View file

@ -2,13 +2,13 @@ name: cookbook-pagination
version: 2.1
synopsis: Pagination with Servant example
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-pagination
main-is: Pagination.lhs

View file

@ -79,14 +79,14 @@ It does three things. First it initializes the service which will communicate wi
- the Sentry `DSN`, which is obtained when creating a new project on Sentry
- a default way to update sentry fields, where we use the identity function
- an event trasport, which generally would be `sendRecord`, an HTTPS capable trasport which uses http-conduit
- an event transport, which generally would be `sendRecord`, an HTTPS capable transport which uses http-conduit
- a fallback handler, which we choose to be `silentFallback` since later we are logging to the console anyway.
In the second step it actually sends our message to Sentry with the `register` function. Its arguments are:
- the configured Sentry service which we just created
- the name of the logger
- the error level (see [SentryLevel](https://hackage.haskell.org/package/raven-haskell-0.1.2.0/docs/System-Log-Raven-Types.html#t:SentryLevel) for the possible options)
- the error level (see [SentryLevel](https://hackage.haskell.org/package/raven-haskell/docs/System-Log-Raven-Types.html#t:SentryLevel) for the possible options)
- the message we want to send
- an update function to handle the specific `SentryRecord`

View file

@ -2,13 +2,13 @@ name: cookbook-sentry
version: 0.1
synopsis: Collecting runtime exceptions using Sentry
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-sentry
main-is: Sentry.lhs

View file

@ -144,7 +144,7 @@ simpleAPIServer
:: m [a]
-> (i -> m a)
-> (a -> m NoContent)
-> Server (SimpleAPI name a i) m
-> ServerT (SimpleAPI name a i) m
simpleAPIServer listAs getA postA =
listAs :<|> getA :<|> postA

View file

@ -2,13 +2,13 @@ name: cookbook-structuring-apis
version: 0.1
synopsis: Example that shows how APIs can be structured
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-structuring-apis
main-is: StructuringApis.lhs

View file

@ -3,14 +3,14 @@ version: 0.0.1
synopsis: Common testing patterns in Servant apps
description: This recipe includes various strategies for writing tests for Servant.
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
category: Servant
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-testing
main-is: Testing.lhs
@ -23,7 +23,7 @@ executable cookbook-testing
, servant
, servant-client
, servant-server
, servant-quickcheck
, servant-quickcheck >= 0.0.10
, http-client
, http-types >= 0.12
, hspec

View file

@ -1,6 +1,6 @@
# Using a custom monad
In this section we will create and API for a book shelf without any backing DB storage.
In this section we will create an API for a book shelf without any backing DB storage.
We will keep state in memory and share it between requests using `Reader` monad and `STM`.
We start with a pretty standard set of imports and definition of the model:

View file

@ -2,13 +2,13 @@ name: cookbook-using-custom-monad
version: 0.1
synopsis: Using custom monad to pass a state between handlers
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-using-custom-monad
main-is: UsingCustomMonad.lhs

View file

@ -141,7 +141,7 @@ and calling the continuation. We should get a `Pure` value.
Pure n ->
putStrLn $ "Expected 1764, got " ++ show n
_ ->
putStrLn "ERROR: didn't got a response"
putStrLn "ERROR: didn't get a response"
```
So that's it. Using `Free` we can evaluate servant clients step-by-step, and

View file

@ -2,13 +2,13 @@ name: cookbook-using-free-client
version: 0.1
synopsis: Using Free client
homepage: http://docs.servant.dev/
license: BSD3
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with: GHC==8.4.4, GHC==8.6.5, GHC==8.8.1
tested-with: GHC==8.6.5, GHC==8.8.3, GHC ==8.10.7
executable cookbook-using-free-client
main-is: UsingFreeClient.lhs

View file

@ -0,0 +1,223 @@
# Listing alternative responses and exceptions in your API types
Servant allows you to talk about the exceptions you throw in your API
types. This is not limited to actual exceptions, you can write
handlers that respond with arbitrary open unions of types.
## Compatibility
:warning: This cookbook is compatible with GHC 8.6.1 or higher :warning:
## Preliminaries
```haskell
{-# LANGUAGE ConstraintKinds #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DerivingVia #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE InstanceSigs #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE UndecidableInstances #-}
{-# OPTIONS_GHC -Wall -Wno-orphans #-}
import Control.Concurrent (threadDelay)
import Control.Concurrent.Async (async)
import Control.Monad (when)
import Control.Monad.Except (ExceptT (..), MonadError (..), MonadTrans (..), runExceptT)
import Data.Aeson (FromJSON (..), ToJSON (..))
import Data.Aeson.Encode.Pretty (encodePretty)
import Data.String.Conversions (cs)
import Data.Swagger (ToSchema)
import Data.Typeable (Proxy (Proxy))
import qualified GHC.Generics as GHC
import qualified Network.HTTP.Client as Client
import qualified Network.Wai.Handler.Warp as Warp
import Servant.API
import Servant.Client
import Servant.Server
import Servant.Swagger
```
## The API
This looks like a `Verb`-based routing table, except that `UVerb` has
no status, and carries a list of response types rather than a single
one. Each entry in the list carries its own response code.
```haskell
type API =
"fisx" :> Capture "bool" Bool
:> UVerb 'GET '[JSON] '[FisxUser, WithStatus 303 String]
:<|> "arian"
:> UVerb 'GET '[JSON] '[WithStatus 201 ArianUser]
```
Here are the details:
```haskell
data FisxUser = FisxUser {name :: String}
deriving (Eq, Show, GHC.Generic)
instance ToJSON FisxUser
instance FromJSON FisxUser
instance ToSchema FisxUser
-- | 'HasStatus' allows us to can get around 'WithStatus' if we want
-- to, and associate the status code with our resource types directly.
--
-- (To avoid orphan instances and make it more explicit what's in the
-- API and what isn't, we could even introduce a newtype 'Resource'
-- that wraps all the types we're using in our routing table, and then
-- define lots of 'HasStatus' instances for @Resource This@ and
-- @Resource That@.)
instance HasStatus FisxUser where
type StatusOf FisxUser = 203
data ArianUser = ArianUser
deriving (Eq, Show, GHC.Generic)
instance ToJSON ArianUser
instance FromJSON ArianUser
instance ToSchema ArianUser
```
## Server, Client, Swagger
You can just respond with any of the elements of the union in handlers.
```haskell
fisx :: Bool -> Handler (Union '[FisxUser, WithStatus 303 String])
fisx True = respond (FisxUser "fisx")
fisx False = respond (WithStatus @303 ("still fisx" :: String))
arian :: Handler (Union '[WithStatus 201 ArianUser])
arian = respond (WithStatus @201 ArianUser)
```
You can create client functions like you're used to:
```
fisxClient :: Bool -> ClientM (Union '[FisxUser, WithStatus 303 String])
arianClient :: ClientM (Union '[WithStatus 201 ArianUser])
(fisxClient :<|> arianClient) = client (Proxy @API)
```
... and that's basically it! Here are a few sample commands that
show you how the swagger docs look like and how you can handle the
result unions in clients:
```
main :: IO ()
main = do
putStrLn . cs . encodePretty $ toSwagger (Proxy @API)
_ <- async . Warp.run 8080 $ serve (Proxy @API) (fisx :<|> arian)
threadDelay 50000
mgr <- Client.newManager Client.defaultManagerSettings
let cenv = mkClientEnv mgr (BaseUrl Http "localhost" 8080 "")
result <- runClientM (fisxClient True) cenv
print $ foldMapUnion (Proxy @Show) show <$> result
print $ matchUnion @FisxUser <$> result
print $ matchUnion @(WithStatus 303 String) <$> result
pure ()
```
## Idiomatic exceptions
Since `UVerb` (probably) will mostly be used for error-like responses, it may be desirable to be able to early abort handler, like with current servant one would use `throwError` with `ServerError`.
```haskell
newtype UVerbT xs m a = UVerbT { unUVerbT :: ExceptT (Union xs) m a }
deriving (Functor, Applicative, Monad, MonadTrans)
-- | Deliberately hide 'ExceptT's 'MonadError' instance to be able to use
-- underlying monad's instance.
instance MonadError e m => MonadError e (UVerbT xs m) where
throwError = lift . throwError
catchError (UVerbT act) h = UVerbT $ ExceptT $
runExceptT act `catchError` (runExceptT . unUVerbT . h)
-- | This combinator runs 'UVerbT'. It applies 'respond' internally, so the handler
-- may use the usual 'return'.
runUVerbT :: (Monad m, HasStatus x, IsMember x xs) => UVerbT xs m x -> m (Union xs)
runUVerbT (UVerbT act) = either id id <$> runExceptT (act >>= respond)
-- | Short-circuit 'UVerbT' computation returning one of the response types.
throwUVerb :: (Monad m, HasStatus x, IsMember x xs) => x -> UVerbT xs m a
throwUVerb = UVerbT . ExceptT . fmap Left . respond
```
Example usage:
```haskell
data Foo = Foo Int Int Int
deriving (Show, Eq, GHC.Generic, ToJSON)
deriving HasStatus via WithStatus 200 Foo
data Bar = Bar
deriving (Show, Eq, GHC.Generic)
instance ToJSON Bar
h :: Handler (Union '[Foo, WithStatus 400 Bar])
h = runUVerbT $ do
when ({- something bad -} True) $
throwUVerb $ WithStatus @400 Bar
when ({- really bad -} False) $
throwError $ err500
-- a lot of code here...
return $ Foo 1 2 3
```
## Related Work
There is the [issue from
2017](https://github.com/haskell-servant/servant/issues/841) that was
resolved by the introduction of `UVerb`, with a long discussion on
alternative designs.
[servant-checked-exceptions](https://hackage.haskell.org/package/servant-checked-exceptions)
is a good solution to the problem, but it restricts the user to JSON
and a very specific envelop encoding for the union type, which is
often not acceptable. (One good reason for this design choice is that
it makes writing clients easier, where you need to get to the union
type from one representative, and you don't want to run several
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
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
some code for generalized error handling.
In an earier version of the `UVerb` implementation, we have used some
code from
[world-peace](https://hackage.haskell.org/package/world-peace), but
that package itself wasn't flexible enough, and we had to use
[sop-core](https://hackage.haskell.org/package/sop-core) to implement
the `HasServer` instance.
Here is a blog post we found on the subject:
https://lukwagoallan.com/posts/unifying-servant-server-error-responses
(If you have anything else, please add it here or let us know.)
```haskell
main :: IO ()
main = return ()
```

View file

@ -0,0 +1,35 @@
name: cookbook-uverb
version: 0.0.1
synopsis: How to use the 'UVerb' type.
description: Listing alternative responses and exceptions in your API types.
homepage: http://docs.servant.dev/
license: BSD-3-Clause
license-file: ../../../servant/LICENSE
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
main-is: UVerb.lhs
build-depends: base == 4.*
, aeson >= 1.2
, aeson-pretty >= 0.8.8
, async
, http-client
, mtl
, servant
, servant-client
, servant-server
, servant-swagger
, string-conversions
, swagger2
, wai
, warp
if impl(ghc >= 9)
buildable: False
default-language: Haskell2010
ghc-options: -Wall -pgmL markdown-unlit
build-tool-depends: markdown-unlit:markdown-unlit

View file

@ -389,3 +389,30 @@ One example for this is if you want to serve a directory of static files along
with the rest of your API. But you can plug in everything that is an
`Application`, e.g. a whole web application written in any of the web
frameworks that support `wai`.
Be mindful! The `servant-server`'s router works by pattern-matching the
different routes that are composed using `:<|>`. `Raw`, as an escape hatch,
matches any route that hasn't been matched by previous patterns. Therefore,
any subsequent route will be silently ignored.
``` haskell
type UserAPI14 = Raw
:<|> "users" :> Get '[JSON] [User]
-- In this situation, the /users endpoint
-- will not be reachable because the Raw
-- endpoint matches requests before
```
A simple way to avoid this pitfall is to either use `Raw` as the last
definition, or to always have it under a static path.
``` haskell
type UserAPI15 = "files" :> Raw
-- The raw endpoint is under the /files
-- static path, so it won't match /users.
:<|> "users" :> Get '[JSON] [User]
type UserAPI16 = "users" :> Get '[JSON] [User]
:<|> Raw
-- The Raw endpoint is matched last, so
-- it won't overlap another endpoint.
```

View file

@ -47,7 +47,6 @@ module Authentication where
import Data.Aeson (ToJSON)
import Data.ByteString (ByteString)
import Data.Map (Map, fromList)
import Data.Monoid ((<>))
import qualified Data.Map as Map
import Data.Proxy (Proxy (Proxy))
import Data.Text (Text)
@ -108,7 +107,7 @@ API with "private." Additionally, the private parts of our API use the
realm for this authentication is `"foo-realm"`).
Unfortunately we're not done. When someone makes a request to our `"private"`
API, we're going to need to provide to servant the logic for validifying
API, we're going to need to provide to servant the logic for validating
usernames and passwords. This adds a certain conceptual wrinkle in servant's
design that we'll briefly discuss. If you want the **TL;DR**: we supply a lookup
function to servant's new `Context` primitive.
@ -133,7 +132,7 @@ combinator. Using `Context`, we can supply a function of type
handler. This will allow the handler to check authentication and return a `User`
to downstream handlers if successful.
In practice we wrap `BasicAuthData -> Handler` into a slightly
In practice we wrap `BasicAuthData -> Handler User` into a slightly
different function to better capture the semantics of basic authentication:
``` haskell ignore
@ -260,7 +259,7 @@ this.
Let's implement a trivial authentication scheme. We will protect our API by
looking for a cookie named `"servant-auth-cookie"`. This cookie's value will
contain a key from which we can lookup a `Account`.
contain a key from which we can lookup an `Account`.
```haskell
-- | An account type that we "fetch from the database" after
@ -274,7 +273,7 @@ database = fromList [ ("key1", Account "Anne Briggs")
, ("key3", Account "Ghédalia Tazartès")
]
-- | A method that, when given a password, will return a Account.
-- | A method that, when given a password, will return an Account.
-- This is our bespoke (and bad) authentication logic.
lookupAccount :: ByteString -> Handler Account
lookupAccount key = case Map.lookup key database of
@ -346,7 +345,7 @@ genAuthServerContext = authHandler :. EmptyContext
-- | Our API, where we provide all the author-supplied handlers for each end
-- point. Note that 'privateDataFunc' is a function that takes 'Account' as an
-- argument. We dont' worry about the authentication instrumentation here,
-- argument. We don't worry about the authentication instrumentation here,
-- that is taken care of by supplying context
genAuthServer :: Server AuthGenAPI
genAuthServer =
@ -385,7 +384,7 @@ Creating a generalized, ad-hoc authentication scheme was fairly straight
forward:
1. use the `AuthProtect` combinator to protect your API.
2. choose a application-specific data type used by your server when
2. choose an application-specific data type used by your server when
authentication is successful (in our case this was `Account`).
3. Create a value of `AuthHandler Request Account` which encapsulates the
authentication logic (`Request -> Handler Account`). This function

View file

@ -161,7 +161,7 @@ The types of the arguments for the functions are the same as for (server-side) r
## Changing the monad the client functions live in
Just like `hoistServer` allows us to change the monad in which request handlers
of a web application live in, we also have `hoistClient` for changing the monad
of a web application live, we also have `hoistClient` for changing the monad
in which _client functions_ live. Consider the following trivial API:
``` haskell
@ -173,7 +173,7 @@ hoistClientAPI = Proxy
We already know how to derive client functions for this API, and as we have
seen above they all return results in the `ClientM` monad when using `servant-client`.
However, `ClientM` rarely (or never) is the actual monad we need to use the client
However, `ClientM` is rarely (or never) the actual monad we need to use the client
functions in. Sometimes we need to run them in IO, sometimes in a custom monad
stack. `hoistClient` is a very simple solution to the problem of "changing" the monad
the clients run in.

View file

@ -77,7 +77,7 @@ instance ToSample HelloMessage where
[ ("When a value is provided for 'name'", HelloMessage "Hello, Alp")
, ("When 'name' is not specified", HelloMessage "Hello, anonymous coward")
]
-- mutliple examples to display this time
-- multiple examples to display this time
ci :: ClientInfo
ci = ClientInfo "Alp" "alp@foo.com" 26 ["haskell", "mathematics"]
@ -108,7 +108,7 @@ apiDocs = docs exampleAPI
markdown :: API -> String
```
That lets us see what our API docs look down in markdown, by looking at `markdown apiDocs`.
That lets us see what our API docs look like in markdown, by looking at `markdown apiDocs`.
````````` text
## GET /hello

View file

@ -228,13 +228,13 @@ data CommonGeneratorOptions = CommonGeneratorOptions
{
-- | function generating function names
functionNameBuilder :: FunctionName -> Text
-- | name used when a user want to send the request body (to let you redefine it)
-- | name used when a user wants to send the request body (to let you redefine it)
, requestBody :: Text
-- | name of the callback parameter when the request was successful
, successCallback :: Text
-- | name of the callback parameter when the request reported an error
, errorCallback :: Text
-- | namespace on which we define the js function (empty mean local var)
-- | namespace on which we define the js function (empty means local var)
, moduleName :: Text
-- | a prefix that should be prepended to the URL in the generated JS
, urlPrefix :: Text

View file

@ -183,7 +183,7 @@ users2 = [isaac, albert]
Now, just like we separate the various endpoints in `UserAPI` with `:<|>`, we
are going to separate the handlers with `:<|>` too! They must be provided in
the same order as in in the API type.
the same order as in the API type.
``` haskell
server2 :: Server UserAPI2
@ -313,8 +313,8 @@ For reference, here's a list of some combinators from **servant**:
## The `FromHttpApiData`/`ToHttpApiData` classes
Wait... How does **servant** know how to decode the `Int`s from the URL? Or how
to decode a `ClientInfo` value from the request body? This is what this and the
following two sections address.
to decode a `ClientInfo` value from the request body? The following three sections will
help us answer these questions.
`Capture`s and `QueryParam`s are represented by some textual value in URLs.
`Header`s are similarly represented by a pair of a header name and a
@ -620,7 +620,7 @@ In short, this means that a handler of type `Handler a` is simply
equivalent to a computation of type `IO (Either ServerError a)`, that is, an IO
action that either returns an error or a result.
The module [`Control.Monad.Except`](https://hackage.haskell.org/package/mtl-2.2.1/docs/Control-Monad-Except.html#t:ExceptT)
The module [`Control.Monad.Except`](https://hackage.haskell.org/package/mtl/docs/Control-Monad-Except.html#t:ExceptT)
from which `ExceptT` comes is worth looking at.
Perhaps most importantly, `ExceptT` and `Handler` are instances of `MonadError`, so
`throwError` can be used to return an error from your handler (whereas `return`
@ -634,7 +634,7 @@ kind and abort early. The next two sections cover how to do just that.
Other important instances from the list above are `MonadIO m => MonadIO
(ExceptT e m)`, and therefore also `MonadIO Handler` as there is a `MonadIO IO` instance.
[`MonadIO`](http://hackage.haskell.org/package/transformers-0.4.3.0/docs/Control-Monad-IO-Class.html)
[`MonadIO`](http://hackage.haskell.org/package/base/docs/Control-Monad-IO-Class.html#t:MonadIO)
is a class from the **transformers** package defined as:
``` haskell ignore
@ -716,7 +716,7 @@ $ curl --verbose http://localhost:8081/myfile.txt
>
< HTTP/1.1 404 Not Found
[snip]
myfile.txt just isnt there, please leave this server alone.
myfile.txt just isn't there, please leave this server alone.
$ echo Hello > myfile.txt
@ -818,7 +818,7 @@ If it doesn't exist, the handler will fail with a `404` status code.
`serveDirectoryWebApp` uses some standard settings that fit the use case of
serving static files for most web apps. You can find out about the other
options in the documentation of the `Servant.Utils.StaticFiles` module.
options in the documentation of the `Servant.Server.StaticFiles` module.
## Nested APIs
@ -1135,7 +1135,7 @@ true
### An arrow is a reader too.
In previous versions of `servant` we had an `enter` to do what `hoistServer`
does now. `enter` had a ambitious design goals, but was problematic in practice.
does now. `enter` had an ambitious design goals, but was problematic in practice.
One problematic situation was when the source monad was `(->) r`, yet it's
handy in practice, because `(->) r` is isomorphic to `Reader r`.
@ -1166,7 +1166,7 @@ back a *stream* of results, served one at a time. Stream endpoints only provide
a single content type, and also specify what framing strategy is used to
delineate the results. To serve these results, we need to give back a stream
producer. Adapters can be written to *Pipes*, *Conduit* and the like, or
written directly as `SourceIO`s. SourceIO builts upon servant's own `SourceT`
written directly as `SourceIO`s. SourceIO builds upon servant's own `SourceT`
stream type (it's simpler than *Pipes* or *Conduit*).
The API of a streaming endpoint needs to explicitly specify which sort of
generator it produces. Note that the generator itself is returned by a

View file

@ -6,46 +6,10 @@ This is an introductory tutorial to **servant**. Whilst browsing is fine, it mak
Any comments, issues or feedback about the tutorial can be submitted
to `servant's issue tracker <http://github.com/haskell-servant/servant/issues>`_.
cabal-install
--------
The whole tutorial is a `cabal <https://cabal.readthedocs.io/en/latest/>`_
project and can be built locally as follows:
.. code-block:: bash
$ git clone https://github.com/haskell-servant/servant.git
$ cd servant
# build
$ cabal new-build tutorial
# load in ghci to play with it
$ cabal new-repl tutorial
stack
--------
The servant `stack <https://docs.haskellstack.org/en/stable/README/>`_ template includes the working tutorial. To initialize this template, run:
.. code-block:: bash
$ stack new myproj servant
$ cd myproj
# build
$ stack build
# start server
$ stack exec myproj-exe
The code can be found in the `*.lhs` files under `doc/tutorial/` in the
repository. Feel free to edit it while you're reading this documentation and
see the effect of your changes.
`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.
.. toctree::
:maxdepth: 1
install.rst
ApiType.lhs
Server.lhs
Client.lhs

42
doc/tutorial/install.rst Normal file
View file

@ -0,0 +1,42 @@
Install
========
cabal-install
--------
The whole tutorial is a `cabal <https://cabal.readthedocs.io/en/latest/>`_
project and can be built locally as follows:
.. code-block:: bash
$ git clone https://github.com/haskell-servant/servant.git
$ cd servant
# build
$ cabal new-build tutorial
# load in ghci to play with it
$ cabal new-repl tutorial
stack
--------
The servant `stack <https://docs.haskellstack.org/en/stable/README/>`_ template includes the working tutorial. To initialize this template, run:
.. code-block:: bash
$ stack new myproj servant
$ cd myproj
# build
$ stack build
# start server
$ stack exec myproj-exe
The code can be found in the `*.lhs` files under `doc/tutorial/` in the
repository. Feel free to edit it while you're reading this documentation and
see the effect of your changes.
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.

View file

@ -6,18 +6,15 @@ description:
<http://docs.servant.dev/>
homepage: http://docs.servant.dev/
category: Servant, Documentation
license: BSD3
license: BSD-3-Clause
license-file: LICENSE
author: Servant Contributors
maintainer: haskell-servant-maintainers@googlegroups.com
build-type: Simple
cabal-version: >=1.10
tested-with:
GHC==8.0.2
GHC==8.2.2
GHC==8.4.4
GHC==8.6.5
GHC==8.8.1
GHC==8.8.3, GHC ==8.10.7
extra-source-files:
static/index.html
static/ui.js
@ -68,9 +65,9 @@ library
, cookie >= 0.4.3 && < 0.5
, js-jquery >= 3.3.1 && < 3.4
, lucid >= 2.9.11 && < 2.10
, random >= 1.1 && < 1.2
, random >= 1.1 && < 1.3
, servant-js >= 0.9 && < 0.10
, time >= 1.6.0.1 && < 1.10
, time >= 1.6.0.1 && < 1.13
-- For legacy tools, we need to specify build-depends too
build-depends: markdown-unlit >= 0.5.0 && <0.6

22
ghcjs.nix Normal file
View file

@ -0,0 +1,22 @@
let reflex-platform = import (builtins.fetchTarball
{ name = "reflex-platform";
url = "https://github.com/reflex-frp/reflex-platform/archive/1aba6f367982bd6dd78ec2fda75ab246a62d32c5.tar.gz";
}) {};
pkgs = import ./nix/nixpkgs.nix; in
pkgs.stdenv.mkDerivation {
name = "ghcjs-shell";
buildInputs =
[ (reflex-platform.ghcjs.ghcWithPackages (p: with p; [
attoparsec
hashable
]))
pkgs.cabal-install
pkgs.gmp
pkgs.haskellPackages.cabal-plan
pkgs.haskellPackages.hspec-discover
pkgs.nodejs
pkgs.perl
pkgs.zlib
];
}

View file

@ -21,3 +21,21 @@ a particular ghc version, e.g:
``` sh
$ nix-shell nix/shell.nix --argstr compiler ghcHEAD
```
**Possible GHC versions**
- `ghc865Binary`
- `ghc884`
- `ghc8104` - default
- `ghc901`
### Cabal users
GHC version can be chosen via the nix-shell parameter
`cabal build all`
### Stack version
Since the ghc version is set by the LTS version, it is preferable to use the `ghc8104` version parameter for the nix-shell.
`stack --no-nix --system-ghc <command>`

4
nix/nixpkgs.json Normal file
View file

@ -0,0 +1,4 @@
{
"rev" : "05f0934825c2a0750d4888c4735f9420c906b388",
"sha256" : "1g8c2w0661qn89ajp44znmwfmghbbiygvdzq0rzlvlpdiz28v6gy"
}

4
nix/nixpkgs.nix Normal file
View file

@ -0,0 +1,4 @@
import (builtins.fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/refs/tags/21.05.tar.gz";
sha256 = "sha256:1ckzhh24mgz6jd1xhfgx0i9mijk6xjqxwsshnvq789xsavrmsc36";
}) {}

View file

@ -1,6 +1,6 @@
{ pkgs ? import <nixpkgs> {}
, compiler ? "ghc822"
{ compiler ? "ghc8104"
, tutorial ? false
, pkgs ? import ./nixpkgs.nix
}:
with pkgs;
@ -9,13 +9,12 @@ let
ghc = haskell.packages.${compiler}.ghcWithPackages (_: []);
docstuffs = python3.withPackages (ps: with ps; [ recommonmark sphinx sphinx_rtd_theme ]);
in
stdenv.mkDerivation {
name = "servant-dev";
buildInputs = [ ghc zlib python3 wget ]
buildInputs = [ ghc zlib python3 wget cabal-install postgresql openssl stack haskellPackages.hspec-discover ]
++ (if tutorial then [docstuffs postgresql] else []);
shellHook = ''
eval $(grep export ${ghc}/bin/ghc)
export LD_LIBRARY_PATH="${zlib}/lib";
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:"${zlib}/lib";
'';
}

1
servant-auth/README.md Symbolic link
View file

@ -0,0 +1 @@
servant-auth-server/README.lhs

View file

@ -0,0 +1 @@
:set -isrc -itest -idoctest/ghci-wrapper/src

View file

@ -0,0 +1,26 @@
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [PVP Versioning](https://pvp.haskell.org/).
## [Unreleased]
## [0.4.1.0] - 2020-10-06
- Support generic Bearer token auth
## [0.4.0.0] - 2019-03-08
## Changed
- #145 Support servant-0.16 in tests @domenkozar
- #145 Drop GHC 7.10 support @domenkozar
## [0.3.3.0] - 2018-06-18
### Added
- Support for GHC 8.4 by @phadej
- Support for servant-0.14 by @phadej
- Changelog by @domenkozar

View file

@ -0,0 +1,31 @@
Copyright Julian K. Arni (c) 2015
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of Julian K. Arni nor the names of other
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

View file

@ -0,0 +1,2 @@
import Distribution.Simple
main = defaultMain

View file

@ -0,0 +1,80 @@
name: servant-auth-client
version: 0.4.1.0
synopsis: servant-client/servant-auth compatibility
description: This package provides instances that allow generating clients from
<https://hackage.haskell.org/package/servant servant>
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>.
category: Web, Servant, Authentication
homepage: http://github.com/haskell-servant/servant/servant-auth#readme
bug-reports: https://github.com/haskell-servant/servant/issues
author: Julian K. Arni
maintainer: jkarni@gmail.com
copyright: (c) Julian K. Arni
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
source-repository head
type: git
location: https://github.com/haskell-servant/servant
library
hs-source-dirs:
src
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
, bytestring >= 0.10.6.0 && < 0.11
, containers >= 0.5.6.2 && < 0.7
, servant-auth == 0.4.*
, servant >= 0.13 && < 0.19
, servant-client-core >= 0.13 && < 0.19
exposed-modules:
Servant.Auth.Client
Servant.Auth.Client.Internal
default-language: Haskell2010
test-suite spec
type: exitcode-stdio-1.0
main-is: Spec.hs
hs-source-dirs:
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
-- dependencies with bounds inherited from the library stanza
build-depends:
base
, servant-client
, servant-auth
, servant
, servant-auth-client
-- test dependencies
build-depends:
hspec >= 2.5.5 && < 2.9
, QuickCheck >= 2.11.3 && < 2.15
, aeson >= 1.3.1.1 && < 1.6
, bytestring >= 0.10.6.0 && < 0.11
, 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
, 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
other-modules:
Servant.Auth.ClientSpec
default-language: Haskell2010

View file

@ -0,0 +1,3 @@
module Servant.Auth.Client (Token(..), Bearer) where
import Servant.Auth.Client.Internal (Bearer, Token(..))

View file

@ -0,0 +1,64 @@
{-# LANGUAGE CPP #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE UndecidableInstances #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
#if __GLASGOW_HASKELL__ == 800
{-# OPTIONS_GHC -fno-warn-redundant-constraints #-}
#endif
module Servant.Auth.Client.Internal where
import qualified Data.ByteString as BS
import Data.Monoid
import Data.Proxy (Proxy (..))
import Data.String (IsString)
import GHC.Exts (Constraint)
import GHC.Generics (Generic)
import Servant.API ((:>))
import Servant.Auth
import Servant.Client.Core
import Data.Sequence ((<|))
-- | A simple bearer token.
newtype Token = Token { getToken :: BS.ByteString }
deriving (Eq, Show, Read, Generic, IsString)
type family HasBearer xs :: Constraint where
HasBearer (Bearer ': xs) = ()
HasBearer (JWT ': xs) = ()
HasBearer (x ': xs) = HasBearer xs
HasBearer '[] = BearerAuthNotEnabled
class BearerAuthNotEnabled
-- | @'HasBearer' auths@ is nominally a redundant constraint, but ensures we're not
-- trying to send a token to an API that doesn't accept them.
instance (HasBearer auths, HasClient m api) => HasClient m (Auth auths a :> api) where
type Client m (Auth auths a :> api) = Token -> Client m api
clientWithRoute m _ req (Token token)
= clientWithRoute m (Proxy :: Proxy api)
$ req { requestHeaders = ("Authorization", headerVal) <| requestHeaders req }
where
headerVal = "Bearer " <> token
#if MIN_VERSION_servant_client_core(0,14,0)
hoistClientMonad pm _ nt cl = hoistClientMonad pm (Proxy :: Proxy api) nt . cl
#endif
-- * Authentication combinators
-- | A Bearer token in the Authorization header:
--
-- @Authorization: Bearer <token>@
--
-- This can be any token recognized by the server, for example,
-- a JSON Web Token (JWT).
--
-- Note that, since the exact way the token is validated is not specified,
-- this combinator can only be used in the client. The server would not know
-- how to validate it, while the client does not care.
-- If you want to implement Bearer authentication in your server, you have to
-- choose a specific combinator, such as 'JWT'.
data Bearer

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@ -0,0 +1,161 @@
{-# LANGUAGE CPP #-}
{-# LANGUAGE DeriveAnyClass #-}
module Servant.Auth.ClientSpec (spec) where
import Crypto.JOSE (JWK,
KeyMaterialGenParam (OctGenParam),
genJWK)
import Data.Aeson (FromJSON (..), ToJSON (..))
import qualified Data.ByteString.Lazy as BSL
import Data.Time (UTCTime, defaultTimeLocale,
parseTimeOrError)
import GHC.Generics (Generic)
import Network.HTTP.Client (Manager, defaultManagerSettings,
newManager)
import Network.HTTP.Types (status401)
import Network.Wai.Handler.Warp (testWithApplication)
import Servant
import Servant.Client (BaseUrl (..), Scheme (Http),
ClientError (FailureResponse),
#if MIN_VERSION_servant_client(0,16,0)
ResponseF(..),
#elif MIN_VERSION_servant_client(0,13,0)
GenResponse(..),
#elif MIN_VERSION_servant_client(0,12,0)
Response(..),
#endif
client)
import System.IO.Unsafe (unsafePerformIO)
import Test.Hspec
import Test.QuickCheck
#if MIN_VERSION_servant_client(0,13,0)
import Servant.Client (mkClientEnv, runClientM)
#elif MIN_VERSION_servant_client(0,9,0)
import Servant.Client (ClientEnv (..), runClientM)
#else
import Control.Monad.Trans.Except (runExceptT)
#endif
#if !MIN_VERSION_servant_server(0,16,0)
#define ClientError ServantError
#endif
import Servant.Auth.Client
import Servant.Auth.Server
import Servant.Auth.Server.SetCookieOrphan ()
spec :: Spec
spec = describe "The JWT combinator" $ do
hasClientSpec
------------------------------------------------------------------------------
-- * HasClient {{{
hasClientSpec :: Spec
hasClientSpec = describe "HasClient" $ around (testWithApplication $ return app) $ do
let mkTok :: User -> Maybe UTCTime -> IO Token
mkTok user mexp = do
Right tok <- makeJWT user jwtCfg mexp
return $ Token $ BSL.toStrict tok
it "succeeds when the token does not have expiry" $ \port -> property $ \user -> do
tok <- mkTok user Nothing
v <- getIntClient tok mgr (BaseUrl Http "localhost" port "")
v `shouldBe` Right (length $ name user)
it "succeeds when the token is not expired" $ \port -> property $ \user -> do
tok <- mkTok user (Just future)
v <- getIntClient tok mgr (BaseUrl Http "localhost" port "")
v `shouldBe` Right (length $ name user)
it "fails when token is expired" $ \port -> property $ \user -> do
tok <- mkTok user (Just past)
#if MIN_VERSION_servant_client(0,16,0)
Left (FailureResponse _ (Response stat _ _ _))
#elif MIN_VERSION_servant_client(0,12,0)
Left (FailureResponse (Response stat _ _ _))
#elif MIN_VERSION_servant_client(0,11,0)
Left (FailureResponse _ stat _ _)
#else
Left (FailureResponse stat _ _)
#endif
<- getIntClient tok mgr (BaseUrl Http "localhost" port "")
stat `shouldBe` status401
getIntClient :: Token -> Manager -> BaseUrl -> IO (Either ClientError Int)
#if MIN_VERSION_servant(0,13,0)
getIntClient tok m burl = runClientM (client api tok) (mkClientEnv m burl)
#elif MIN_VERSION_servant(0,9,0)
getIntClient tok m burl = runClientM (client api tok) (ClientEnv m burl)
#else
getIntClient tok m burl = runExceptT $ client api tok m burl
#endif
-- }}}
------------------------------------------------------------------------------
-- * API and Server {{{
type API = Auth '[JWT] User :> Get '[JSON] Int
api :: Proxy API
api = Proxy
theKey :: JWK
theKey = unsafePerformIO . genJWK $ OctGenParam 256
{-# NOINLINE theKey #-}
mgr :: Manager
mgr = unsafePerformIO $ newManager defaultManagerSettings
{-# NOINLINE mgr #-}
app :: Application
app = serveWithContext api ctx server
where
ctx = cookieCfg :. jwtCfg :. EmptyContext
jwtCfg :: JWTSettings
jwtCfg = defaultJWTSettings theKey
cookieCfg :: CookieSettings
cookieCfg = defaultCookieSettings
server :: Server API
server = getInt
where
getInt :: AuthResult User -> Handler Int
getInt (Authenticated u) = return . length $ name u
getInt _ = throwAll err401
-- }}}
------------------------------------------------------------------------------
-- * Utils {{{
past :: UTCTime
past = parseTimeOrError True defaultTimeLocale "%Y-%m-%d" "1970-01-01"
future :: UTCTime
future = parseTimeOrError True defaultTimeLocale "%Y-%m-%d" "2070-01-01"
-- }}}
------------------------------------------------------------------------------
-- * Types {{{
data User = User
{ name :: String
, _id :: String
} deriving (Eq, Show, Read, Generic)
instance FromJWT User
instance ToJWT User
instance FromJSON User
instance ToJSON User
instance Arbitrary User where
arbitrary = User <$> arbitrary <*> arbitrary
-- }}}

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@ -0,0 +1 @@
{-# OPTIONS_GHC -F -pgmF hspec-discover #-}

View file

@ -0,0 +1 @@
:set -isrc -itest -idoctest/ghci-wrapper/src

View file

@ -0,0 +1,14 @@
# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [PVP Versioning](https://pvp.haskell.org/).
## [Unreleased]
## [0.2.10.0] - 2018-06-18
### Added
- Support for GHC 8.4 by @phadej
- Changelog by @domenkozar

View file

@ -0,0 +1,31 @@
Copyright Julian K. Arni (c) 2015
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of Julian K. Arni nor the names of other
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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{-# LANGUAGE CPP #-}
{-# OPTIONS_GHC -Wall #-}
module Main (main) where
#ifndef MIN_VERSION_cabal_doctest
#define MIN_VERSION_cabal_doctest(x,y,z) 0
#endif
#if MIN_VERSION_cabal_doctest(1,0,0)
import Distribution.Extra.Doctest ( defaultMainWithDoctests )
main :: IO ()
main = defaultMainWithDoctests "doctests"
#else
#ifdef MIN_VERSION_Cabal
-- If the macro is defined, we have new cabal-install,
-- but for some reason we don't have cabal-doctest in package-db
--
-- Probably we are running cabal sdist, when otherwise using new-build
-- workflow
#warning You are configuring this package without cabal-doctest installed. \
The doctests test-suite will not work as a result. \
To fix this, install cabal-doctest before configuring.
#endif
import Distribution.Simple
main :: IO ()
main = defaultMain
#endif

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name: servant-auth-docs
version: 0.2.10.0
synopsis: servant-docs/servant-auth compatibility
description: This package provides instances that allow generating docs from
<https://hackage.haskell.org/package/servant servant>
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>.
category: Web, Servant, Authentication
homepage: http://github.com/haskell-servant/servant/servant-auth#readme
bug-reports: https://github.com/haskell-servant/servant/issues
author: Julian K. Arni
maintainer: jkarni@gmail.com
copyright: (c) Julian K. Arni
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
custom-setup
setup-depends:
base, Cabal, cabal-doctest >=1.0.6 && <1.1
source-repository head
type: git
location: https://github.com/haskell-servant/servant
library
hs-source-dirs:
src
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
, servant-docs >= 0.11.2 && < 0.12
, servant >= 0.13 && < 0.19
, servant-auth == 0.4.*
, lens >= 4.16.1 && <5.1
exposed-modules:
Servant.Auth.Docs
default-language: Haskell2010
test-suite doctests
type: exitcode-stdio-1.0
main-is: doctests.hs
build-depends:
base,
servant-auth-docs,
doctest >= 0.16 && < 0.19,
QuickCheck >= 2.11.3 && < 2.15,
template-haskell
ghc-options: -Wall -threaded
hs-source-dirs: test
default-language: Haskell2010
test-suite spec
type: exitcode-stdio-1.0
main-is: Spec.hs
hs-source-dirs:
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
-- dependencies with bounds inherited from the library stanza
build-depends:
base
, text
, servant-docs
, servant
, servant-auth
, lens
-- test dependencies
build-depends:
servant-auth-docs
, hspec >= 2.5.5 && < 2.9
, QuickCheck >= 2.11.3 && < 2.15
default-language: Haskell2010

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{-# OPTIONS_GHC -fno-warn-orphans #-}
module Servant.Auth.Docs
(
-- | The purpose of this package is provide the instance for 'servant-auth'
-- combinators needed for 'servant-docs' documentation generation.
--
-- >>> type API = Auth '[JWT, Cookie, BasicAuth] Int :> Get '[JSON] Int
-- >>> putStr $ markdown $ docs (Proxy :: Proxy API)
-- ## GET /
-- ...
-- ... Authentication
-- ...
-- This part of the API is protected by the following authentication mechanisms:
-- ...
-- * JSON Web Tokens ([JWTs](https://en.wikipedia.org/wiki/JSON_Web_Token))
-- * [Cookies](https://en.wikipedia.org/wiki/HTTP_cookie)
-- * [Basic Authentication](https://en.wikipedia.org/wiki/Basic_access_authentication)
-- ...
-- Clients must supply the following data
-- ...
-- One of the following:
-- ...
-- * A JWT Token signed with this server's key
-- * Cookies automatically set by browsers, plus a header
-- * Cookies automatically set by browsers, plus a header
-- ...
-- * Re-export
JWT
, BasicAuth
, Cookie
, Auth
) where
import Control.Lens ((%~), (&), (|>))
import Data.List (intercalate)
import Data.Monoid
import Data.Proxy (Proxy (Proxy))
import Servant.API hiding (BasicAuth)
import Servant.Auth
import Servant.Docs hiding (pretty)
import Servant.Docs.Internal (DocAuthentication (..), authInfo)
instance (AllDocs auths, HasDocs api) => HasDocs (Auth auths r :> api) where
docsFor _ (endpoint, action) =
docsFor (Proxy :: Proxy api) (endpoint, action & authInfo %~ (|> info))
where
(intro, reqData) = pretty $ allDocs (Proxy :: Proxy auths)
info = DocAuthentication intro reqData
pretty :: [(String, String)] -> (String, String)
pretty [] = error "shouldn't happen"
pretty [(i, d)] =
( "This part of the API is protected by " <> i
, d
)
pretty rs =
( "This part of the API is protected by the following authentication mechanisms:\n\n"
++ " * " <> intercalate "\n * " (fst <$> rs)
, "\nOne of the following:\n\n"
++ " * " <> intercalate "\n * " (snd <$> rs)
)
class AllDocs (x :: [*]) where
allDocs :: proxy x
-- intro, req
-> [(String, String)]
instance (OneDoc a, AllDocs as) => AllDocs (a ': as) where
allDocs _ = oneDoc (Proxy :: Proxy a) : allDocs (Proxy :: Proxy as)
instance AllDocs '[] where
allDocs _ = []
class OneDoc a where
oneDoc :: proxy a -> (String, String)
instance OneDoc JWT where
oneDoc _ =
("JSON Web Tokens ([JWTs](https://en.wikipedia.org/wiki/JSON_Web_Token))"
, "A JWT Token signed with this server's key")
instance OneDoc Cookie where
oneDoc _ =
("[Cookies](https://en.wikipedia.org/wiki/HTTP_cookie)"
, "Cookies automatically set by browsers, plus a header")
instance OneDoc BasicAuth where
oneDoc _ =
( "[Basic Authentication](https://en.wikipedia.org/wiki/Basic_access_authentication)"
, "Cookies automatically set by browsers, plus a header")
-- $setup
-- >>> instance ToSample Int where toSamples _ = singleSample 1729

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{-# OPTIONS_GHC -F -pgmF hspec-discover #-}

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