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nextcloud-docs/developer_manual/externalapi.rst
2012-12-26 21:54:09 +01:00

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External API
============
.. sectionauthor:: Tom Needham <tom@owncloud.com>
Introduction
------------
The external API inside ownCloud allows third party developers to access data
provided by ownCloud apps. ownCloud version 5.0 will follow the `OCS v1.7
specification`_ (draft).
.. _OCS v1.7 specification: http://www.freedesktop.org/wiki/Specifications/open-collaboration-services-1.7
Usage
------------
To make use of the external api as an app developer, there are just three things
to do.
#. Add your API routes inside $app/appinfo/routes.php
#. Code your API methods in $app/lib/*
#. Update the OCS spec with your call
To register your API routes, we make use of the OCP\API::register() method as
defined below:
.. php:class:: OCP\\API
OCP\\API class
.. php:method:: register($method, $url, $action, $app, $authlevel, $defaults, $requirements)
Registers an API route with the backend.
:param string $method: The HTTP method (get, post, put or delete)
:param string $url: The url that defines the API route (see 'Routing URLs' section below)
:param callable $action: The function to call
:param string $app: The app id
:param int $authlevel: The required level of authentication to access the API method (use constants `defined in OC_API <https://github.com/owncloud/core/blob/ocs_api/lib/api.php#L32>`_)
:param array $defaults: associative array of defaults for the URL parameters. Keys are the parameter names as defined in the url
:param array $requirements: associative array of requirements for the url parameters (See the `Symfony Documentation <http://symfony.com/doc/2.0/book/routing.html#adding-requirements>`_)
Routing URLs
~~~~~~~~~~~~~
The API uses the new routing features inside ownCloud to make it easy to attach
api methods to urls which include variables. To register an API method including
a variable, simple place the variable name in curly brackets {}. For example:
/cloud/users/{userid}
If the URL /cloud/users/Tom is requested, the api function registered with this
url would be called, and passed the parameter 'userid' with the value: 'Tom'.
The parameters are passed to the API methods inside an array.