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cowboy
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Add templates as Erlang.mk plugin

Loïc Hoguin 8 years ago
parent
f7094ad78f
commit
5838a0c81a
2 changed files with 83 additions and 3 deletions
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  1. 8 3
      doc/src/guide/getting_started.asciidoc
  2. 75 0
      plugins.mk

+ 8 - 3
doc/src/guide/getting_started.asciidoc
View File 

@@ -71,10 +71,15 @@ PROJECT = hello_erlang
 
 DEPS = cowboy
 
 DEPS = cowboy
 
 dep_cowboy_commit = master
 
 dep_cowboy_commit = master
 
 
 
+DEP_PLUGINS = cowboy
 
+
 
 include erlang.mk
 
 include erlang.mk
 
 ----
 
 ----
 
 
 
-If you run `make run` now, Cowboy will be included in the release
 
+We also tell the build system to load the plugins Cowboy provides.
 
+These include predefined templates that we will use soon.
 
+
 
+If you do `make run` now, Cowboy will be included in the release
 
 and started automatically. This is not enough however, as Cowboy
 
 and started automatically. This is not enough however, as Cowboy
 
 doesn't do anything by default. We still need to tell Cowboy to
 
 doesn't do anything by default. We still need to tell Cowboy to
 
 listen for connections.
 
 listen for connections.
 
@@ -119,7 +124,7 @@ HTTP handler.
 
 Generate a handler from a template:
 
 Generate a handler from a template:
 
 
 
 [source,bash]
 
 [source,bash]
 
-$ make new t=cowboy_http n=hello_handler
 
+$ make new t=cowboy.http n=hello_handler
 
 
 
 Then, open the 'src/hello_handler.erl' file and modify
 
 Then, open the 'src/hello_handler.erl' file and modify
 
 the `init/2` function like this to send a reply.
 
 the `init/2` function like this to send a reply.
 
@@ -134,7 +139,7 @@ init(Req0, State) ->
 
     {ok, Req, State}.
 
     {ok, Req, State}.
 
 ----
 
 ----
 
 
 
-What the above code does is send a `200 OK` reply, with the
 
+What the above code does is send a 200 OK reply, with the
 
 Content-type header set to `text/plain` and the response
 
 Content-type header set to `text/plain` and the response
 
 body set to `Hello Erlang!`.
 
 body set to `Hello Erlang!`.

+ 75 - 0
plugins.mk
View File 

@@ -0,0 +1,75 @@
 
+# See LICENSE for licensing information.
 
+
 
+# Plain HTTP handlers.
 
+define tpl_cowboy.http
 
+-module($(n)).
 
+-behavior(cowboy_handler).
 
+
 
+-export([init/2]).
 
+
 
+init(Req, State) ->
 
+	{ok, Req, State}.
 
+endef
 
+
 
+# Loop handlers.
 
+define tpl_cowboy.loop
 
+-module($(n)).
 
+-behavior(cowboy_loop).
 
+
 
+-export([init/2]).
 
+-export([info/3]).
 
+
 
+init(Req, State) ->
 
+	{cowboy_loop, Req, State, 5000, hibernate}.
 
+
 
+info(_Info, Req, State) ->
 
+	{ok, Req, State, hibernate}.
 
+endef
 
+
 
+# REST handlers.
 
+define tpl_cowboy.rest
 
+-module($(n)).
 
+-behavior(cowboy_rest).
 
+
 
+-export([init/2]).
 
+-export([content_types_provided/2]).
 
+-export([to_html/2]).
 
+
 
+init(Req, State) ->
 
+	{cowboy_rest, Req, State}.
 
+
 
+content_types_provided(Req, State) ->
 
+	{[
 
+		{{<<"text">>, <<"html">>, '*'}, to_html}
 
+	], Req, State}.
 
+
 
+to_html(Req, State) ->
 
+	{<<"<html><body>This is REST!</body></html>">>, Req, State}.
 
+endef
 
+
 
+# Websocket handlers.
 
+define tpl_cowboy.ws
 
+-module($(n)).
 
+-behavior(cowboy_websocket).
 
+
 
+-export([init/2]).
 
+-export([websocket_init/1]).
 
+-export([websocket_handle/2]).
 
+-export([websocket_info/2]).
 
+
 
+init(Req, State) ->
 
+	{cowboy_websocket, Req, State}.
 
+
 
+websocket_init(State) ->
 
+	{ok, State}.
 
+
 
+websocket_handle({text, Data}, State) ->
 
+	{reply, {text, Data}, State};
 
+websocket_handle({binary, Data}, State) ->
 
+	{reply, {binary, Data}, State};
 
+websocket_handle(_Frame, State) ->
 
+	{ok, State}.
 
+
 
+websocket_info(_Info, State) ->
 
+	{ok, State}.
 
+endef