Complete verification for os-virtual-interfaces

This includes the parameter, example, and body verifications
for api-ref os-virtual-interfaces.

part of bp:api-ref-in-rst

Change-Id: I7fea91f046de9c0765b6c317c5cf310bc76be78b

api-ref/source/os-virtual-interfaces.inc

@@ -1,7 +1,4 @@
 .. -*- rst -*-
-.. needs:parameter_verification
-.. needs:example_verification
-.. needs:body_verification
 
 =============================================================
  Servers virtual interfaces (servers, os-virtual-interfaces)
@@ -16,7 +13,9 @@ List Virtual Interfaces
 
 Lists the virtual interfaces for an instance.
 
-Policy defaults enable only users with the administrative role or the owner of the server to perform this operation. Change these permissions through the ``policy.json`` file.
+Policy defaults enable only users with the administrative role or the owner of
+the server to perform this operation. Change these permissions through the
+``policy.json`` file.
 
 Normal response codes: 200
 
@@ -28,7 +27,7 @@ Request
 .. rest_parameters:: parameters.yaml
 
 
-  - server_id: server_id
+  - server_id: server_id_path
 
 Response
 --------
@@ -38,9 +37,18 @@ Response
   - virtual_interfaces: virtual_interfaces
   - id: virtual_interface_id
   - mac_address: mac_address
+  - net_id: net_id_resp_2_12
+
+.. note::
+
+   The API v2 returns the network ID in the "OS-EXT-VIF-NET:net_id" response
+   attribute. But API v2.1 base version does not return the network ID.
+   Network ID has been added in v2.12 micro-version and returns it in the
+   "net_id" attribute.
+
 
 **Example List Virtual Interfaces: JSON response**
 
-.. literalinclude:: ../../doc/api_samples/os-virtual-interfaces/vifs-list-resp.json
+.. literalinclude:: ../../doc/api_samples/os-virtual-interfaces/v2.12/vifs-list-resp.json
    :language: javascript
 

api-ref/source/parameters.yaml

@@ -2604,6 +2604,13 @@ net_id_resp:
   in: body
   required: true
   type: string
+net_id_resp_2_12:
+  description: |
+    The network ID.
+  in: body
+  required: true
+  type: string
+  min_version: 2.12
 network_label_body:
   description: |
     The network label, such as ``public`` or ``private``.
@@ -3723,7 +3730,7 @@ virtual_interface_id:
   type: string
 virtual_interfaces:
   description: |
-    A ``virtual_interfaces`` object.
+    An array of virtual interfaces.
   in: body
   required: true
   type: array