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      <a href="https://reviewboard.asterisk.org/r/2376/">https://reviewboard.asterisk.org/r/2376/</a>
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    <a href="https://reviewboard.asterisk.org/r/2376/diff/3/?file=35546#file35546line22" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/res/res_stasis_http.make</a>
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     (Diff revision 3)

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    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">res_stasis_http.so:  stasis_http/resource_asterisk.o stasis_http/resource_bridges.o stasis_http/resource_channels.o stasis_http/resource_endpoints.o stasis_http/resource_events.o stasis_http/resource_recordings.o stasis_http/resources.o</pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Something I&#39;ve gone back and forth over is whether each resource should be its own res_ module, or if they should be linked together into a single res_stasis_http module.

The current code links everything into a single module. I&#39;ve given it some thought, and it wouldn&#39;t be a huge change to go the multi-module route.

This would break up the generated res/stasis_http/resources.c into several generated files. It makes the RESTful API more extensible, since they will be loaded dynamically instead of being specified in a single file.

I&#39;ll be giving this some more thought, but does anyone else have comments they&#39;d like to add?</pre>
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<p>- David</p>


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<p>On April 8th, 2013, 8:45 a.m. CDT, David Lee wrote:</p>








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<div>Review request for Asterisk Developers.</div>
<div>By David Lee.</div>


<p style="color: grey;"><i>Updated April 8, 2013, 8:45 a.m.</i></p>









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 <b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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   <pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This patch represents the first step toward adding a RESTful API to Asterisk.

The following is the file doc from res_stasis_http.c:

The API itself is documented using Swagger[1], a lightweight mechanism for
documenting RESTful API&#39;s using JSON. This allows us to use swagger-ui[2] to
provide executable documentation for the API, generate client bindings in
different languages[3], and generate a lot of the boilerplate code for
implementing the RESTful bindings. The API docs live in the rest-api/ directory.

The RESTful bindings are generated from the Swagger API docs using a set of
Cog.py[4] templates. Cog.py is extemely lightweight (maybe too lightweight), and
can be installed easily using pip. Template scripts live in the cog/ directory,
and the generated code lives in the res/stasis-http/ directory.

The structure of the generated code is:

 - A tree of stasis_rest_handlers which are used for request routing.
 - Prototypes for request handlers, and structures for passing arguments in
   the request handler.
 - A set of stasis_rest_callback functions, which glue the two
   together. They parse out path variables and request parameters to populate
   a specific *_args which is passed to the specific request handler.

The use of the generated *_args allows for greater type safety and reduced
boilerplate in the request handlers themselves.

The basic flow of an HTTP request is:

 - stasis_http_callback()
   1. Initial request validation
   2. Routes as either a doc request (stasis_http_get_docs) or API
      request (stasis_http_invoke)
      - stasis_http_invoke()
        1. Further request validation
        2. Routes the request through the tree of generated
           stasis_rest_handlers.
        3. Dispatch to the generated callback
           - stasis_http_*_cb
             1. Populate *_args struct with path and get params
             2. Invoke the request handler
   3. Validates and sends response

 [1]: https://developers.helloreverb.com/swagger/
 [2]: https://github.com/wordnik/swagger-ui
 [3]: https://github.com/asterisk/asterisk_rest_libraries
 [4]: http://nedbatchelder.com/code/cog/
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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 <li>/trunk/Makefile <span style="color: grey">(384882)</span></li>

 <li>/trunk/apps/app_stasis.c <span style="color: grey">(384882)</span></li>

 <li>/trunk/build_tools/make_stasis_http_stubs <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/cog/odict.py <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/cog/res_stasis_http.make.cog <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/cog/stasis_cog.py <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/cog/stasis_http_resource.c.cog <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/cog/stasis_http_resource.h.cog <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/cog/stasis_http_resources.c.cog <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/configs/stasis_http.conf.sample <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/include/asterisk/app_stasis.h <span style="color: grey">(384882)</span></li>

 <li>/trunk/include/asterisk/http.h <span style="color: grey">(384882)</span></li>

 <li>/trunk/include/asterisk/json.h <span style="color: grey">(384882)</span></li>

 <li>/trunk/include/asterisk/stasis_http.h <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/include/asterisk/strings.h <span style="color: grey">(384882)</span></li>

 <li>/trunk/include/asterisk/utils.h <span style="color: grey">(384882)</span></li>

 <li>/trunk/main/http.c <span style="color: grey">(384882)</span></li>

 <li>/trunk/main/json.c <span style="color: grey">(384882)</span></li>

 <li>/trunk/res/Makefile <span style="color: grey">(384882)</span></li>

 <li>/trunk/res/res_stasis_http.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/res_stasis_http.exports.in <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/res_stasis_http.make <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_asterisk.h <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_asterisk.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_bridges.h <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_bridges.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_channels.h <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_channels.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_endpoints.h <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_endpoints.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_events.h <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_events.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_recordings.h <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resource_recordings.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/res/stasis_http/resources.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/rest-api/README.txt <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/rest-api/api-docs/asterisk.json <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/rest-api/api-docs/bridges.json <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/rest-api/api-docs/channels.json <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/rest-api/api-docs/endpoints.json <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/rest-api/api-docs/events.json <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/rest-api/api-docs/recordings.json <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/rest-api/resources.json <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/tests/test_stasis.c <span style="color: grey">(384882)</span></li>

 <li>/trunk/tests/test_stasis_http.c <span style="color: grey">(PRE-CREATION)</span></li>

 <li>/trunk/tests/test_strings.c <span style="color: grey">(384882)</span></li>

</ul>

<p><a href="https://reviewboard.asterisk.org/r/2376/diff/" style="margin-left: 3em;">View Diff</a></p>







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