Laravel 419 Error: Why is My Session Expiring and How Can I Fix It?

Laravel Post Request Error: 419 Sorry, your session / Your page has expired

This error occurs in Laravel when your CSRF token verification fails, indicating that the AppHttpMiddlewareVerifyCsrfToken::class middleware is enabled. The @csrf blade directive should be included in the form, but if the issue persists, it's recommended to check your session configuration.

Session Configuration

CSRF token verification is closely related to the session. Ensure that your session driver is functioning properly, as an improperly configured Redis, for instance, can cause problems.

Supported Session Drivers

Laravel supports the following session drivers:

• file: Sessions are stored in storage/framework/sessions.
• cookie: Sessions are stored in secure, encrypted cookies.
• database: Sessions are stored in a database.
• memcached / redis: Sessions are stored in a cache-based store.
• array: Sessions are stored in a PHP array (non-persistent).

Possible Error-Prone Scenarios

• File-based sessions may encounter issues due to permissions in the /storage directory. Avoid setting excessive permissions (777).
• Database driver issues: Incorrect database connection or invalid or misconfigured sessions table.
• Redis/memcached configuration errors or interference from other code.

Additional Troubleshooting

• Execute php artisan key:generate to generate a new app key, effectively flushing session data.
• Clear your browser cache, as Chrome and Firefox have been known to cause this error.
• Review the importance of application keys for security.

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