=== Input validations ===
The service validates all input it receives from a client and returns a <code>422</code> (Unprocessable Entity) HTTP [[#Error_codes_and_responses|status code together with a descriptive error object]] in case of an input violation (but well-formed JSON). In case a client passes invalid JSON (a JSON parser is unable to parse the JSON string), the service returns a <code >400</code> (Bad Request) HTTP [[#Error_codes_and_responses|status code together with a descriptive error object]]containing the JSON parser error message.
= Notes =