- 100 Continue: The initial part of a request has been received, and the client should continue with the request.
- 101 Switching Protocols: The server is switching protocols as requested by the client.
- 200 OK: Standard response for successful HTTP requests.
- 201 Created: The request has been fulfilled and resulted in a new resource being created.
- 204 No Content: The server successfully processed the request, but is not returning any content.