POST /counter
-------------

**Response**: 

 - Status code 201
 - Response body as below.

``` javascript
{"value":0}
```

GET /doc
--------

**Response**: 

 - Status code 200
 - No response body

GET /counter
------------

**Response**: 

 - Status code 200
 - Response body as below.

``` javascript
{"value":0}
```

GET /
-----

**Response**: 

 - Status code 200
 - No response body