Resolving the Issue of Laravel 7 Flash Messages Not Displaying

Discover how to fix the problem of flash messages not displaying in your Laravel 7 application, including a step-by-step guide on adjusting middleware settings.
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This video is based on the question https://stackoverflow.com/q/65860135/ asked by the user 'Max William Vitorino' ( https://stackoverflow.com/u/2540084/ ) and on the answer https://stackoverflow.com/a/65861111/ provided by the user 'Max William Vitorino' ( https://stackoverflow.com/u/2540084/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Resolving the Issue of Laravel 7 Flash Messages Not Displaying

In web development, ensuring that users receive relevant feedback is critical. In the Laravel framework, flash messages serve as a way to communicate temporary messages, such as success or error notifications, after a request is made. However, you might encounter a situation where your Laravel 7 application does not display these essential flash messages. Let’s explore how you can troubleshoot and resolve this issue effectively.

Understanding the Problem

You may face a situation where your intended flash messages fail to appear on the front-end, leading to confusion for users. There are various reasons this might happen, but the most common issues are related to middleware configuration or how messages are set and retrieved from the session.

Common Symptoms:

Flash messages are consistently returning null.

Only messages set using Session::put display correctly.

Form request rule errors are not being shown.

Getting to the Root of the Problem

After attempting various methods of setting flash messages using with, withErrors, or Session::flash, you might still find that nothing works. This often points to an issue with session management in your application’s middleware.

Key Middleware Classes

StartSession: Manages session data.

ShareErrorsFromSession: Shares errors stored in the session with the views.

Solution Steps

Step 1: Identifying Middleware Issues

A recent testing maneuver revealed that commenting out the StartSession and ShareErrorsFromSession middleware led to a complete loss of session functionality. This indicates that the problem lay in how these classes interact with your requests.

Step 2: Adjusting Middleware Configuration

To resolve the flash message issue, you need to modify the middleware configuration in your Laravel application. Use the following steps:

Navigate to the Middleware Configuration
This is typically found in app/Http/Kernel.php.

Modify the Middleware
Move the classes from the $middlewareGroups array to the $middleware array as shown below:

Your Original Configuration:

[[See Video to Reveal this Text or Code Snippet]]

Updated Configuration:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Testing Changes

Once you have made these changes, it’s essential to test your application. Try accessing the routes where you set flash messages and ensure that they now display correctly. Take note to also check your form request errors to confirm they've started appearing as expected.

Conclusion

By understanding the middleware configuration related to sessions, you can effectively resolve the issue of flash messages not displaying in your Laravel 7 application. Adjusting the placement of the StartSession and ShareErrorsFromSession middleware within your application not only solves the flash message problem but also enhances the overall experience for users interacting with your forms and notifications.

If you continue to face issues, ensure that all other related configurations are correct, and consider seeking assistance from the wider Laravel community. Happy coding!

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