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401
Unauthorized
Client Error
RFC 7235
The request requires user authentication.
Detailed Information
The 401 status code indicates that the request requires user authentication. The response must include a WWW-Authenticate header field containing a challenge applicable to the requested resource.
Common Examples
- •Accessing protected resources
- •API requests requiring authentication
Common Uses
- •API requests requiring authentication
- •Protected resources
Best Practices
- •Use when authentication is required
- •Include WWW-Authenticate header with authentication details
- •Ensure proper authentication mechanisms are in place