mirror of https://github.com/ninenines/cowboy.git synced 2025-07-14 12:20:24 +00:00

Loïc Hoguin 5ce4c2bfb4 Unify the init and terminate callbacks This set of changes is the first step to simplify the writing of handlers, by removing some extraneous callbacks and making others optional. init/3 is now init/2, its first argument being removed. rest_init/2 and rest_terminate/2 have been removed. websocket_init/3 and websocket_terminate/3 have been removed. terminate/3 is now optional. It is called regardless of the type of handler, including rest and websocket. The return value of init/2 changed. It now returns {Mod, Req, Opts} with Mod being either one of the four handler type or a custom module. It can also return extra timeout and hibernate options. The signature for sub protocols has changed, they now receive these extra timeout and hibernate options. Loop handlers are now implemented in cowboy_long_polling, and will be renamed throughout the project in a future commit.		2014-09-26 15:58:44 +03:00
..
src	Unify the init and terminate callbacks	2014-09-26 15:58:44 +03:00
Makefile	Update to erlang.mk 1.0.0	2014-08-01 14:26:51 +02:00
README.md	Update erlang.mk and update paths to start the release	2014-06-30 10:14:05 +02:00
relx.config	Convert the REST hello world example to a release	2013-09-08 12:22:30 +02:00

README.md

REST hello world example

To try this example, you need GNU make and git in your PATH.

To build the example, run the following command:

$ make

To start the release in the foreground:

$ ./_rel/rest_hello_world_example/bin/rest_hello_world_example console

Then point your browser at http://localhost:8080.

Example output

Request HTML:

$ curl -i http://localhost:8080
HTTP/1.1 200 OK
connection: keep-alive
server: Cowboy
date: Fri, 28 Sep 2012 04:15:52 GMT
content-length: 136
content-type: text/html
vary: Accept

<html>
<head>
  <meta charset="utf-8">
  <title>REST Hello World!</title>
</head>
<body>
  <p>REST Hello World as HTML!</p>
</body>
</html>

Request JSON:

$ curl -i -H "Accept: application/json" http://localhost:8080
HTTP/1.1 200 OK
connection: keep-alive
server: Cowboy
date: Fri, 28 Sep 2012 04:16:46 GMT
content-length: 24
content-type: application/json
vary: Accept

{"rest": "Hello World!"}

Request plain text:

$ curl -i -H "Accept: text/plain" http://localhost:8080
HTTP/1.1 200 OK
connection: keep-alive
server: Cowboy
date: Fri, 28 Sep 2012 04:18:35 GMT
content-length: 25
content-type: text/plain
vary: Accept

REST Hello World as text!

Request a non acceptable content-type:

$ curl -i -H "Accept: text/css" http://localhost:8080
HTTP/1.1 406 Not Acceptable
connection: keep-alive
server: Cowboy
date: Fri, 28 Sep 2012 04:18:51 GMT
content-length: 0