Add sharee search and recommendation API docs

Signed-off-by: Christoph Wurst <christoph@winzerhof-wurst.at>

developer_manual/core/index.rst

@@ -14,3 +14,4 @@ Please make sure you have set up a :ref:`devenv`.
    theming
    externalapi
    ocs-share-api
+   ocs-sharee-api

developer_manual/core/ocs-sharee-api.rst

@@ -0,0 +1,51 @@
+==============
+OCS Sharee API
+==============
+
+The OCS Sharee API allows you to access the sharing API from outside over
+pre-defined OCS calls.
+
+The base URL for all calls to the share API is: *<nextcloud_base_url>/ocs/v1.php/apps/files_sharing/api/v1*
+
+All calls to OCS endpoints require the ``OCS-APIRequest`` header to be set to ``true``.
+
+Search
+------
+
+Search sharees
+^^^^^^^^^^^^^^
+
+Get all sharees matching a search term.
+
+* Syntax: /sharees
+* Method: GET
+
+* URL Arguments: search - (string) the search term
+* URL Arguments: lookup - (bool) whether to search globally on the Nextcloud lookup server
+* URL Arguments: perPage - (int) number of sharees per page
+* URL Arguments: itemType - (string) type of share, e.g. "file"
+
+* Result: XML with all sharees
+
+Status codes:
+
+* 100 - successful
+
+Recommendation
+--------------
+
+Sharee recommendations
+^^^^^^^^^^^^^^^^^^^^^^
+
+Get sharees the sharer might want to share with.
+
+* Syntax: /sharees_recommended
+* Method: GET
+
+* URL Arguments: itemType - (string) type of share, e.g. "file"
+
+* Result: XML with recommended sharees
+
+Status codes:
+
+* 100 - successful