Troubleshooting Sanctum Auth in Laravel 11: React Frontend Facing 401 Errors

Hey everyone, I’m stuck with a Sanctum authentication problem in my Laravel 11 project. The React frontend is giving me headaches!

I’ve set up login and logout, and they seem to work fine. But here’s the weird part: after logging in, I can’t fetch the user info from /api/user. It keeps throwing a 401 Unauthorized error.

Even stranger, when I try to log out through /api/logout, I get the same 401 error. It’s driving me crazy!

I’m using Laravel Sanctum with cookies for auth, and Axios in React to make API calls. Has anyone run into something similar? Any ideas on what might be going wrong?

I’ve triple-checked my setup, but I’m out of ideas. Could it be a CORS issue? Or maybe something with the Sanctum config? Any help would be awesome!

yo, I had this same issue! turned out it was a CORS problem. Check ur sanctum.php config - make sure the stateful domains are set right. Also, double-check ur axios setup. U might need to add withCredentials:true to ur requests. That fixed it for me. good luck!

hm, interesting problem! have u checked ur session config? sometimes the domain setting can be tricky. Also, are u using SPA authentication? If so, make sure ur using the right middleware. oh, and double-check ur CSRF protection - that can be sneaky. what happens if u try a different endpoint? just curious :thinking:

I encountered a similar issue recently. The problem might be related to session handling. Ensure your Laravel app is correctly setting the session cookie. Check your ‘config/session.php’ file and verify that ‘same_site’ is set to ‘lax’ or ‘none’ (if using HTTPS). Also, make sure your frontend is sending the XSRF-TOKEN cookie with each request. This token is crucial for Sanctum to validate the request. If you’re using Axios, you can set ‘axios.defaults.withCredentials = true’ to include cookies automatically. Lastly, confirm that your API routes are properly protected with the ‘auth:sanctum’ middleware. These steps resolved the issue for me.