2. Error Reporting

Errors are reported with an HTTP status code accompanied by an error JSON object. The object contains the status, an internal error code, user-displayable message, and an internal developer message.

HTTP/1.1 404 Not Found

{
  "error" : {
        "status" : 404,
        "code" : 0,
        "message" : "No sensor with that id",
        "developerMessage" : "user: mike sensor:gfhghjhj is not in the database"
  }
}