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authorLoïc Hoguin <[email protected]>2012-07-21 21:46:21 +0200
committerLoïc Hoguin <[email protected]>2012-07-22 05:09:56 +0200
commit370b3d96485daa2bac0ed4aebecb867dca5f8d3e (patch)
tree0f5f6701fa41e64ce3df110222caa6d1f202e4a7 /examples/echo_get/src/toppage_handler.erl
parentdc759faf605ed1f3a0d2a82247a92a480755465a (diff)
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Add a GET echo example
Diffstat (limited to 'examples/echo_get/src/toppage_handler.erl')
-rw-r--r--examples/echo_get/src/toppage_handler.erl29
1 files changed, 29 insertions, 0 deletions
diff --git a/examples/echo_get/src/toppage_handler.erl b/examples/echo_get/src/toppage_handler.erl
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+++ b/examples/echo_get/src/toppage_handler.erl
@@ -0,0 +1,29 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+%% @doc GET echo handler.
+-module(toppage_handler).
+
+-export([init/3]).
+-export([handle/2]).
+-export([terminate/2]).
+
+init(_Transport, Req, []) ->
+ {ok, Req, undefined}.
+
+handle(Req, State) ->
+ {Method, Req2} = cowboy_http_req:method(Req),
+ {Echo, Req3} = cowboy_http_req:qs_val(<<"echo">>, Req2),
+ {ok, Req4} = echo(Method, Echo, Req3),
+ {ok, Req4, State}.
+
+echo('GET', undefined, Req) ->
+ cowboy_http_req:reply(400, [], <<"Missing echo parameter.">>, Req);
+echo('GET', Echo, Req) ->
+ cowboy_http_req:reply(200,
+ [{<<"Content-Encoding">>, <<"utf-8">>}], Echo, Req);
+echo(_, _, Req) ->
+ %% Method not allowed.
+ cowboy_http_req:reply(405, Req).
+
+terminate(_Req, _State) ->
+ ok.