A developer has completed the implementation of a REST API, but when it is executed, it returns a 401 error message.
What must be done on the API to resolve the issue?
Click on the arrows to vote for the correct answer
A. B. C. D.D.
A 401 error message indicates that the user is not authorized to access the requested resource. This typically occurs when a user attempts to access a protected resource without providing valid authentication credentials, or when the provided credentials are invalid or have expired.
To resolve this issue, the developer must ensure that the client making the API request provides valid authentication credentials, such as an access token or username and password, in the request headers or query parameters.
There are several ways to implement authentication in a REST API, including token-based authentication, OAuth, and basic authentication. The developer should choose an appropriate authentication method based on the security requirements of the API and the needs of the application.
If the authentication credentials provided by the client are valid, but the user still does not have access to the requested resource, then the developer may need to check the permissions of the user or the resource itself. Depending on the implementation of the API, the developer may need to grant additional permissions to the user, modify the permissions of the resource, or update the API documentation to clarify the required permissions for accessing the resource.
In summary, to resolve a 401 error in a REST API, the developer must ensure that the client provides valid authentication credentials, and that the user has the necessary permissions to access the requested resource.