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authorLoïc Hoguin <[email protected]>2015-02-16 18:03:35 +0100
committerLoïc Hoguin <[email protected]>2015-02-16 18:03:35 +0100
commit4f2bbd2e5a08e10f98fc82c1f0a98a7c8649b3ee (patch)
tree0eaa05fc247994ac6f01f51c1979f7b321ca260c /doc/src/guide/handlers.ezdoc
parent410662b29589214c1d825a027ec6b195c23e3ad6 (diff)
parent8fd3ff2d629fa13a52061e7db5c67a3ba6fe4429 (diff)
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Merge branch 'master' of https://github.com/sstrigler/cowboy
Diffstat (limited to 'doc/src/guide/handlers.ezdoc')
-rw-r--r--doc/src/guide/handlers.ezdoc16
1 files changed, 8 insertions, 8 deletions
diff --git a/doc/src/guide/handlers.ezdoc b/doc/src/guide/handlers.ezdoc
index c0fb97e..9336488 100644
--- a/doc/src/guide/handlers.ezdoc
+++ b/doc/src/guide/handlers.ezdoc
@@ -14,8 +14,8 @@ defined during the ^"router configuration^routing^.
A handler that does nothing would look like this:
``` erlang
-init(Req, Opts) ->
- {ok, Req, Opts}.
+init(Req, _Opts) ->
+ {ok, Req, #state{}}.
```
Despite sending no reply, a `204 No Content` reply will be
@@ -25,11 +25,11 @@ sent for every request.
We need to use the Req object for sending a reply.
``` erlang
-init(Req, Opts) ->
+init(Req, _Opts) ->
Req2 = cowboy_req:reply(200, [
{<<"content-type">>, <<"text/plain">>}
], <<"Hello World!">>, Req),
- {ok, Req2, Opts}.
+ {ok, Req2, #state{}}.
```
As you can see we return a 3-tuple. `ok` means that the
@@ -60,15 +60,15 @@ return the name of the handler type you want to use. The
following snippet switches to a Websocket handler:
``` erlang
-init(Req, Opts) ->
- {cowboy_websocket, Req, Opts}.
+init(Req, _Opts) ->
+ {cowboy_websocket, Req, #state{}}.
```
You can also switch to your own custom handler type:
``` erlang
-init(Req, Opts) ->
- {my_handler_type, Req, Opts}.
+init(Req, _Opts) ->
+ {my_handler_type, Req, #state{}}.
```
How to implement a custom handler type is described in the