wsme/doc/source/document.rst
Stephen Finucane 7092903ba1 Rework documentation build
Modern docs! This fixes a couple of issues introduced in the previous
patches and generally cleans up a lot of mess.

Change-Id: Ib964c16251bce12fe498b13455ed3515ef205916
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
2019-11-18 13:58:59 -08:00

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Document your API
=================
Web services without a proper documentation are usually useless.
To make it easy to document your own API, WSME provides a Sphinx_ extension.
Install the extension
---------------------
Here we consider that you already quick-started a sphinx project.
#. In your ``conf.py`` file, add ``'ext'`` to your extensions,
and optionally set the enabled protocols.
.. code-block:: python
extensions = ['ext']
wsme_protocols = ['restjson', 'restxml']
#. Copy :download:`toggle.js </_static/toggle.js>`
and :download:`toggle.css </_static/toggle.css>`
in your _static directory.
The ``wsme`` domain
-------------------
The extension will add a new Sphinx domain providing a few directives.
Config values
~~~~~~~~~~~~~
.. confval:: wsme_protocols
A list of strings that are WSME protocol names.
The types and services generated documentation will include code samples
for each of these protocols.
.. confval:: wsme_root
A string that is the full name of the service root controller.
It will be used
to determinate the relative path of the other controllers when they
are autodocumented, and calculate the complete webpath of the other
controllers.
.. confval:: wsme_webpath
A string that is the webpath where the :confval:`wsme_root` is mounted.
Directives
~~~~~~~~~~
.. rst:directive:: .. root:: <WSRoot full path>
Define the service root controller for this documentation source file.
To set it globally, see :confval:`wsme_root`.
A ``webpath`` option allows override of :confval:`wsme_webpath`.
Example:
.. code-block:: rst
.. wsme:root:: myapp.controllers.MyWSRoot
:webpath: /api
.. rst:directive:: .. service:: name/space/ServiceName
Declare a service.
.. rst:directive:: .. type:: MyComplexType
Equivalent to the :rst:dir:`py:class` directive to document a complex type
.. rst:directive:: .. attribute:: aname
Equivalent to the :rst:dir:`py:attribute` directive to document a complex type
attribute. It takes an additional ``:type:`` field.
Example
~~~~~~~
.. list-table::
:header-rows: 1
* - Source
- Result
* - .. code-block:: rst
.. wsme:root:: wsmeext.sphinxext.SampleService
:webpath: /api
.. wsme:type:: MyType
.. wsme:attribute:: test
:type: int
.. wsme:service:: name/space/SampleService
.. wsme:function:: doit
- .. wsme:root:: wsmeext.sphinxext.SampleService
:webpath: /api
.. wsme:type:: MyType
.. wsme:attribute:: test
:type: int
.. wsme:service:: name/space/SampleService
.. wsme:function:: getType
Returns a :wsme:type:`MyType <MyType>`
Autodoc directives
~~~~~~~~~~~~~~~~~~
Theses directives scan your code to generate the documentation from the
docstrings and your API types and controllers.
.. rst:directive:: .. autotype:: myapp.MyType
Generate the myapp.MyType documentation.
.. rst:directive:: .. autoattribute:: myapp.MyType.aname
Generate the myapp.MyType.aname documentation.
.. rst:directive:: .. autoservice:: myapp.MyService
Generate the myapp.MyService documentation.
.. rst:directive:: .. autofunction:: myapp.MyService.myfunction
Generate the myapp.MyService.myfunction documentation.
Full Example
------------
Python source
~~~~~~~~~~~~~
.. literalinclude:: ../../wsmeext/sphinxext.py
:lines: 69-96
:language: python
Documentation source
~~~~~~~~~~~~~~~~~~~~
.. code-block:: rst
.. default-domain:: wsme
.. type:: int
An integer
.. autotype:: wsmeext.sphinxext.SampleType
:members:
.. autoservice:: wsmeext.sphinxext.SampleService
:members:
Result
~~~~~~
.. default-domain:: wsme
.. type:: int
An integer
.. autotype:: wsmeext.sphinxext.SampleType
:members:
.. autoservice:: wsmeext.sphinxext.SampleService
:members:
.. _Sphinx: http://sphinx.pocoo.org/