AEM 6.3 - Swagger Rest Call Returning 404

I've made a simple Rest API with a couple GET calls. one returns a string and one returns a json object.

The rest service works when called externally and returns the string and object.

However when trying to call or test the methods, after successfully hooking it to a data form model, aem gives a 404.

12.12.2018 15:40:44.075 *ERROR* [0:0:0:0:0:0:0:1 [1544665244058] POST /content/dam/formsanddocuments-fdm/test-swagger.executeDermisQuery.json HTTP/1.1] com.adobe.aem.dermis.core.servlet.DermisBridgeServlet Exception while executing operation
com.adobe.aem.dermis.exception.DermisException: <html><head><title>Error</title></head><body>404 - Not Found</body></html>
        at com.adobe.aem.dermis.core.rest.service.RestInvoker.invokeOperation(RestInvoker.java:126)
        at com.adobe.aem.dermis.core.rest.service.RestConnector.executeRequest(RestConnector.java:115)
        at com.adobe.aem.dermis.api.AbstractConnector.executeOperation(AbstractConnector.java:435)

swagger.json file used,

{
   "swagger": "2.0",
   "info": {
   "version": "0.0.1-SNAPSHOT",
   "title": "RestTest"
   },
   "host": "localhost:8083",
   "basePath": "/rest",
   "schemes": [
   "http"
   ],
   "paths": {
   "/test": {
   "get": {
   "consumes": [
  ],
   "produces": [
   "text/plain"
   ],
   "parameters": [
  ],
   "responses": {
   "200": {
   "description": "OK",
   "headers": {
  },
   "schema": {
   "type": "string"
   }
  }
  }
  }
  },
   "/test/exception": {
   "get": {
   "consumes": [
  ],
   "produces": [
   "application/json"
   ],
   "parameters": [
  ],
   "responses": {
   "200": {
   "description": "OK",
   "headers": {
  },
   "schema": {
   "$ref": "#/definitions/TestObject"
   }
  },
   "406": {
   "description": "Not Acceptable",
   "headers": {
  },
   "schema": {
   "type": "object"
   }
  }
  }
  }
  },
   "/test/message": {
   "get": {
   "consumes": [
  ],
   "produces": [
   "application/json"
   ],
   "parameters": [
  ],
   "responses": {
   "200": {
   "description": "OK",
   "headers": {
  },
   "schema": {
   "type": "string"
   }
  }
  }
  }
  },
   "/test/object": {
   "get": {
   "consumes": [
  ],
   "produces": [
   "application/json"
   ],
   "parameters": [
  ],
   "responses": {
   "200": {
   "description": "OK",
   "headers": {
  },
   "schema": {
   "$ref": "#/definitions/TestObject"
   }
  }
  }
  }
  }
  },
   "definitions": {
   "TestObject": {
   "properties": {
   "id": {
   "type": "integer"
   },
   "name": {
   "type": "string"
   }
  }
  }
  }
}