Added Robot example.

Robot/ExampleAPIBehaviour.robot

+
+*** Settings ***
+Library     BuiltIn
+Library     OperatingSystem
+Library     JSONSchemaLibrary           schemas/
+Resource    ExampleAPIKeywords.robot
+
+*** Test Cases ***
+
+Get Resource 200
+    [Documentation]
+    ... Test case: TC_RESOURCE_GET_200
+    ${resource}                           ${response} =            getResoure    1
+    Should Be Equal                       ${response['status']}    200
+    Should Be Equal                       ${resource['id']}        1
+
+Post Resource 204
+    [Documentation]
+    ... Test case: TC_RESOURCE_POST_204
+    ${resource} =                          Get File                 data/resourceData1.json
+    ${response} =                          postResource             ${resource}
+    Should Be Equal                        ${response['status']}    204

Robot/ExampleAPIKeywords.robot

+# NOTE: depends on Python's json module
+
+*** Settings ***
+Resource    environment/variables.robot
+Library     REST ${HTTP_SCHEME}://${IP_HOST}:${TCP_PORT}
+Library     JSONLibrary
+Library     JSONSchemaLibrary                               schemas/
+
+
+*** Keywords ***
+getResource ${id}
+    Set Headers      {"Accept": "${ACCEPT_JSON}"}
+    GET              ${apiRoot}/${apiName}/${apiVersion}/resource/${id}
+    ${response} =    Output                                                response
+    Validate Json    ResourceData.schema.json                              ${response['body']}
+    ${resource} =    evaluate                                              json.loads('''${response['body']}''')    json
+    [Return]         ${resource}                                           ${response}
+
+postResource ${resource}
+    Set Headers      {"Accept": "${ACCEPT_JSON}"}
+    POST             ${apiRoot}/${apiName}/${apiVersion}/resource    ${resource}
+    ${response} =    Output                                          response
+    [Return]         ${response}

Robot/data/resourceData1.json

+{
+    "size": "big"
+}
\ No newline at end of file

Robot/schemas/AuthenticatedNotification.schema.json

+{
+    "type": "object"
+}
\ No newline at end of file

Robot/schemas/Credentials.schema.json

+{
+    "type": "object"
+}
\ No newline at end of file

Robot/schemas/ResourceData.schema.json

+{
+   "type": "object",
+   "properties": {
+      "id": {
+         "type": "string"
+      },
+      "size": {
+         "type": "string",
+         "enum": [
+            "big",
+            "bigger",
+            "biggerer"
+         ],
+         "default": "big"
+      },
+      "created": {
+         "type": "string",
+         "format": "date-time"
+      }
+   },
+   "required": [
+      "id"
+   ]
+}
\ No newline at end of file

Robot/schemas/SearchResults.schema.json

+{
+    "type": "array",
+    "items": {
+        "$ref": "ResourceData.schema.json#/"
+    },
+    "maxItems": 10
+}
\ No newline at end of file

Robot/schemas/Subscription.schema.json

+{
+    "type": "object",
+    "properties": {
+        "credentials": {
+            "$ref": "Credentials.schema.json#/"
+        }
+    }
+}
\ No newline at end of file

Robot/variables.robot

+*** Variables ***
+${HTTP_SCHEME} http
+${IP_HOST} example.com
+${TCP_PORT} 80
+
+${apiRoot}        /
+${apiVersion}     
+${apiName}        example
+
+${ACCEPT_JSON}    application/json
\ No newline at end of file