Java UserRedirectRequiredException: A redirect is required to get the users approval spring boot 5 security

UserRedirectRequiredException is an exception that is thrown by the Spring Security framework when a redirect is required to get the user's approval for an authentication request. This exception is typically thrown when using the OAuth2AuthorizationRequestRedirectFilter filter to handle OAuth 2.0 authorization requests.

There are several reasons why a UserRedirectRequiredException might be thrown when using Spring Security, such as:

1. The user is not authenticated: If the user is not authenticated, the OAuth2AuthorizationRequestRedirectFilter filter will redirect the user to the authorization server to obtain their approval for the authentication request.

2. The user has not granted the necessary permissions: If the user has not granted the necessary permissions for the authentication request, the OAuth2AuthorizationRequestRedirectFilter filter will redirect the user to the authorization server to obtain their approval.

3. The user has not authorized the application: If the user has not authorized the application to access their resources, the OAuth2AuthorizationRequestRedirectFilter filter will redirect the user to the authorization server to obtain their approval.

To handle a UserRedirectRequiredException in a Spring Boot application, you can catch the exception and redirect the user to the appropriate URL, as shown in the following example:

try {
  // Attempt to authenticate the user
  authenticationManager.authenticate(authentication);
} catch (UserRedirectRequiredException e) {
  // Redirect the user to the authorization server
  response.sendRedirect(e.getRedirectUri());
  return;
}