Add API documentation for optf-has

Add the API documentation exposed by HAS, used by OSDF in R2.

Issue-ID: OPTFRA-155
Change-Id: I78fa78f26720ee4670fc62c250c2c4720aca2a77
Signed-off-by: Shankar Narayanan <snarayanan@research.att.com>

2 files changed, 134 insertions, 0 deletions

diff --git a/docs/api.rst b/docs/api.rst
new file mode 100644
index 0000000..dba217f
--- /dev/null
+++ b/docs/api.rst
@@ -0,0 +1,133 @@
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+
+Homing API v1
+=============
+
+*Updated: 28 Feb 2018*
+
+This document describes the Homing API, provided by the Homing and Allocation service (Conductor).
+It is a work in progress and subject to frequent revision.
+
+General API Information
+=======================
+
+Authenticated calls that target a known URI but that use an HTTP method
+the implementation does not support return a 405 Method Not Allowed
+status. In addition, the HTTP OPTIONS method is supported for each known
+URI. In both cases, the Allow response header indicates the supported
+HTTP methods. See the API Errors section for more information about the
+error response structure.
+
+API versions
+============
+
+List all Homing API versions
+----------------------------
+
+**GET** ``/``\ F
+
+**Normal response codes:** 200
+
+.. code:: json
+
+    {
+      "versions": [
+        {
+          "status": "EXPERIMENTAL",
+          "id": "v1",
+          "updated": "2016-11-01T00:00:00Z",
+          "media-types": [
+            {
+              "base": "application/json",
+              "type": "application/vnd.onap.homing-v1+json"
+            }
+          ],
+          "links": [
+            {
+              "href": "http://has.ip/v1",
+              "rel": "self"
+            },
+            {
+              "href": "http://has.url/",
+              "type": "text/html",
+              "rel": "describedby"
+            }
+          ]
+        }
+      ]
+    }
+
+This operation does not accept a request body.
+
+Plans
+=====
+
+Create a plan
+-------------
+
+**POST** ``/v1/plans``
+
+-  **Normal response codes:** 201
+-  **Error response codes:** badRequest (400), unauthorized (401),
+   internalServerError (500)
+
+Request an inventory plan for one or more related service demands.
+
+The request includes or references a declarative **template**,
+consisting of:
+
+-  **Parameters** that can be referenced like macros
+-  **Demands** for service made against inventory
+-  **Locations** that are common to the overall plan
+-  **Constraints** made against demands, resulting in a set of inventory
+   candidates
+-  **Optimizations** to further narrow down the remaining candidates
+
+The response contains an inventory **plan**, consisting of one or more
+sets of recommended pairings of demands with an inventory candidate’s
+attributes and region.
+
+Request Parameters
+~~~~~~~~~~~~~~~~~~
+
++--------------------+------------+----------+------------------------+
+| Parameter          | Style      | Type     | Description            |
++====================+============+==========+========================+
+| ``name``           | plain      | xsd:stri | A name for the new     |
+| (Optional)         |            | ng       | plan. If a name is not |
+|                    |            |          | provided, it will be   |
+|                    |            |          | auto-generated based   |
+|                    |            |          | on the homing          |
+|                    |            |          | template. This name    |
+|                    |            |          | must be unique within  |
+|                    |            |          | a given Conductor      |
+|                    |            |          | environment. When      |
+|                    |            |          | deleting a plan, its   |
+|                    |            |          | name will not become   |
+|                    |            |          | available for reuse    |
+|                    |            |          | until the deletion     |
+|                    |            |          | completes              |
+|                    |            |          | successfully. Must     |
+|                    |            |          | only contain letters,  |
+|                    |            |          | numbers, hypens, full  |
+|                    |            |          | stops, underscores,    |
+|                    |            |          | and tildes (RFC 3986,  |
+|                    |            |          | Section 2.3). This     |
+|                    |            |          | parameter is           |
+|                    |            |          | immutable.             |
++--------------------+------------+----------+------------------------+
+| ``id`` (Optional)  | plain      | csapi:UU | The UUID of the plan.  |
+|                    |            | ID       | UUID is assigned by    |
+|                    |            |          | Conductor if no id is  |
+|                    |            |          | provided in the        |
+|                    |            |          | request.               |
++--------------------+------------+----------+------------------------+
+| ``transaction_id`` | plain      | csapi:UU | The transaction id     |
+|                    |            | ID       | assigned by SO. The    |
+|                    |            |          | logs should have this  |
+|                    |            |          | transaction id for     |
+|                    |            |          | tracking purposes.     |
++--------------------+------------+----------+------------------------+
+| ``files``          | plain      | xsd:dict | Supplies the contents  |
+| (Optional)         |            |          | of files referenced.   |
++--------------------+------------+----------+------------------------+
\ No newline at end of file
diff --git a/docs/index.rst b/docs/index.rst
index 636f71e..2ea9c0f 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -6,4 +6,5 @@ Optimization Framework: Homing and Allocation
 .. toctree::
    :maxdepth: 4
 
+   api
    release-notes/index