Challonge API is RESTful and uses conventional HTTP response codes to indicate the success or failure of the API request. The table below will help you identify the meaning and the implication of error responses.

As a general rule of thumb:

• 2xx range codes indicate success
• 4xx range codes indicate a failure from the given information (e.g missing API identifiers, invalid parameters, failed transactions, etc.)
• 5xx range codes indicate an error on the platform itself.

HTTP Status Codes

200 OK

Retrieving and updating a resource uses 200 HTTP code.

201 Created

Creating a resource uses 201 HTTP Code.

204 No Content

Deleting a resource uses 204 HTTP Code.

400 Bad Request

The request was not understood, often causes by missing parameters, invalid payload format, validation or processing errors.

401 Unauthorized