HTTPServices :: GetHTTPError - HTTP error codes

Internal error codes are converted into HTTP error codes. Following error codes are created:

• 200 - Ok
• 201 - Created (PUT or PATCH when a new instance has been created)
• 204 - No content (request is ok but no content returned - PUT,PATCH, DELETE)
• 400 - Bad request in passed body
• 401 - Unauthorized (user or password invalid)
• 403 - Forbidden (user accepted but not authorized for requested operation)
• 404 - not found (url is syntactically incorrect or not a valid database path)
• 405 - Method not allowed (request type not supported by application)
• 409 - operation refused (instance not located, duplicate key etc.)
• 500 - internal server error