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authorJimmy Forsyth <jf2512@att.com>2019-05-24 13:32:00 -0400
committerJimmy Forsyth <jf2512@att.com>2019-05-24 13:32:05 -0400
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treee4c4f4b1abb0c12e085b2ae86d94c1b33ff0759b /docs/AAI REST API Documentation/nodesApi.rst
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Updating Dublin docs
Issue-ID: AAI-2461 Signed-off-by: Jimmy Forsyth <jf2512@att.com> Change-Id: I5c483067268eda2425bb0cea4a3066a65e2133e5
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+.. contents::
+ :depth: 3
+..
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+Nodes Query
+===========
+
+In working with AAI's standard REST API, you may have noticed that
+certain API paths have a hierarchy to them and require a client to
+know multiple object keys to preform GETs. For example: the vserver
+object is under tenant, which is itself under cloud-region. If you
+wanted to look up a vserver by name, you would still need to know the
+tenant-id and cloud-region-id (and cloud-owner) in order to
+successfully perform that GET. The nodes API allows for more freedom
+in querying AAI, allowing clients to circumvent the need to know
+every key in the hierarchy. Using the previous example, the below is
+how the API called would change for looking up a vserver by name:
+
+.. code::
+
+ GET /aai/v$/cloud-infrastructure/cloud-regions/cloud-region/{cloud-owner}/{cloud-region-id}/tenants/tenant/{tenant-id}/vservers?vserver-name={vserver-name}
+ becomes
+ GET /aai/v$/nodes/vservers?vserver-name={vserver-name}
+
+A side effect of this is that if the same vserver name was reused between
+multiple cloud-regions or tenants the client will receive multiple
+vservers in the response. Vserver ID and vserver name are
+intentionally non-unique outside of their cloud-region/tenant
+hierarchy, as are many other keys for nested objects.
+
+API URI
+~~~~~~~
+
+nodes can be used to start a URI from any node type, whether singular or plural.
+
+.. code::
+ GET /aai/v$/nodes/{plural}
+ OR
+ GET /aai/v$/nodes/{singular}/{key}
+
+From there, it can be expanded on similarly to our Resources API. For example:
+
+.. code::
+
+ GET /aai/v$/nodes/{plural}?{property}={value}
+
+ GET /aai/v$/nodes/tenant/{tenant-id}/vservers
+
+ GET /aai/v$/nodes/generic-vnf/{vnf-id}/related-to/platforms
+
+Optional Query Parameters
+~~~~~~~~~~~~~~~~~~~~~~~~~
+The Nodes API can make use of all the optional query
+parameters available on the standard REST API.
+
+Depth
+~~~~~
+
+You can pass a depth query parameter to indicate what level of child objects you want
+returned. By default the output will be depth = 0 (no "children", only
+"cousin" relationships). When using depth in conjunction with the
+format query parameter, it will only apply to the on the resource or
+resource_and_url formats.
+
+.. code::
+
+ GET /aai/v$/nodes/{plural}/{singular}/{key}?depth={integer}
+
+Nodes Only
+~~~~~~~~~~
+
+You can pass a nodes only query parameter to have the output only contain
+the object properties with no relationships.
+
+.. code::
+
+ GET /aai/v$/nodes/{plural}/{singular}/{key}?nodes-only
+ OR
+ GET /aai/v$/nodes/{plural}/{singular}/{key}?format={format}&nodesOnly=true
+
+Format
+~~~~~~
+
+You can optionally request an output format different from the default
+REST API output. You can reference the list of formats on the `Custom
+Query <customQueries.html>`_ wiki page for the full list of available
+formats and examples.
+
+.. code::
+
+ GET /aai/v$/nodes/{plural}/{singular}/{key}?format={format}
+
+Usage with Custom Query
+~~~~~~~~~~~~~~~~~~~~~~~
+
+The Nodes API can be called directly or as the start node for Custom
+Queries. Please reference the Custom Queries wiki page for full
+documentation on how to use that interface.
+
+.. code::
+
+ PUT /aai/v$/query?format={format} with payload like..
+ { "start": ["nodes/{plural}/{singular}/{key}"], "query": "query/{query-name}" }