Fix documentation errors

This also updates the XACML PDP documentation.

Issue-ID: POLICY-2500
Change-Id: Ice086fa39040fbee899652faa0a079192a122f03
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/docs/xacml/decision-api.rst b/docs/xacml/decision-api.rst
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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+
+.. _decision-api-label:
+
+Decision API
+#######################
+
+The Decision API is used by ONAP components that enforce policies and need a decision on which policy to enforce for a specific situation. The Decision API mimics closely the XACML request standard in that it supports a subject, action and resource.
+
+.. csv-table::
+   :header: "Field", "Required", "XACML equivalent", "Description"
+
+   "ONAPName", "True", "subject", "The name of the ONAP project making the call"
+   "ONAPComponent", "True", "subject", "The name of the ONAP sub component making the call"
+   "ONAPInstance", "False", "subject", "An optional instance ID for that sub component"
+   "action", "True", "action", "The action being performed"
+   "resource", "True", "resource", "An object specific to the action that contains properties describing the resource"
+
+It is worth noting that we use basic authorization for API access with username and password set to *healthcheck* and *zb!XztG34* respectively.
+Also, the new APIs support both *http* and *https*.
+
+For every API call, the client is encouraged to insert an uuid-type requestID as parameter. It is helpful for tracking each http transaction
+and facilitates debugging. Most importantly, it complies with Logging requirements v1.2. If the client does not provide the requestID in the API call,
+one will be randomly generated and attached to the response header *x-onap-requestid*.
+
+In accordance with `ONAP API Common Versioning Strategy Guidelines <https://wiki.onap.org/display/DW/ONAP+API+Common+Versioning+Strategy+%28CVS%29+Guidelines>`_,
+in the response of each API call, several custom headers are added::
+
+    x-latestversion: 1.0.0
+    x-minorversion: 0
+    x-patchversion: 0
+    x-onap-requestid: e1763e61-9eef-4911-b952-1be1edd9812b
+
+x-latestversion is used only to communicate an API's latest version.
+
+x-minorversion is used to request or communicate a MINOR version back from the client to the server, and from the server back to the client.
+
+x-patchversion is used only to communicate a PATCH version in a response for troubleshooting purposes only, and will be provided to the client on request.
+
+x-onap-requestid is used to track REST transactions for logging purpose, as described above.
+
+.. swaggerv2doc:: swagger.json
+
+
+End of Document