I’m having trouble with the Google Drive API in my PHP project. After following the setup steps from the official documentation, I am receiving an ‘apiAuthException’ stating 'Error fetching OAuth2 access token, message: ‘redirect_uri_mismatch’. I suspect there might be a mistake in my configuration settings. Has anyone faced this issue before? If so, could you share what configurations to verify? I’m eager to resolve this quickly.
for sure! had the same redirect_uri_mismatch issue too. my fix was rechecking the ports in the console. if ur using localhost, make sure both ur app & console agree on the url. even minor differences can screw things up!
The redirect_uri_mismatch error occurs when the redirect URIs specified in your Google Cloud Console are not aligned with those being used by your application. I encountered this issue as well, and found it was often due to a mismatch between HTTP and HTTPS. Ensure that your redirect URIs are an exact match, including any trailing slashes. It’s also crucial to verify that you are using the correct client ID and secrets associated with these URIs. Additionally, if your application involves external users, revisit your OAuth consent settings to ensure everything is properly configured.
This usually happens because of case sensitivity or domain verification issues that are easy to miss. I spent hours on this exact problem until I realized my Google Cloud Console had www.example.com but my PHP code was redirecting to example.com without the www. Another thing that’ll trip you up - your dev redirect URI works fine, but production breaks because you forgot to add the live domain to authorized redirect URIs. Make sure your PHP app’s redirect URI matches exactly what’s in the console - every character, query parameter, and subdirectory needs to be identical.