JSON
code field in the JSON body is a numeric status code. Suki maps it to the HTTP status on the response. See Status code to HTTP mapping for the full mapping.
Each table row lists an error id: a stable name you can use in client code. In responses, that value appears in the message field, either as the full string or as a prefix (for example invalid_sdp_token or invalid_sdp_token: …). Match on the id exactly or by prefix when you handle errors in your integration.