Скачать или смотреть How to Fix the CSRF Token Mismatch Exception in Laravel When Sending a PUT Request via jQuery AJAX

How to Fix the CSRF Token Mismatch Exception in Laravel When Sending a PUT Request via jQuery AJAX

Laravel CSRF token mismatch exception. Sending Put request to a resource route via jQuery ajaxajaxlaravelcsrflaravel 6.2csrf token

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Описание к видео How to Fix the CSRF Token Mismatch Exception in Laravel When Sending a PUT Request via jQuery AJAX

Learn how to resolve the common issue of `CSRF token mismatch` in Laravel when making AJAX PUT requests, especially when handling files. Follow our step-by-step guide to ensure smooth form submissions!
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This video is based on the question https://stackoverflow.com/q/62296415/ asked by the user 'Sijan Bhattarai' ( https://stackoverflow.com/u/7393303/ ) and on the answer https://stackoverflow.com/a/62296499/ provided by the user 'Khalid Khan' ( https://stackoverflow.com/u/11259455/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the CSRF Token Mismatch Exception in Laravel

When working with Laravel, developers often face various challenges. One common issue that can arise is the dreaded CSRF token mismatch exception. This can occur when you try to send a PUT request to a resource route using jQuery AJAX, especially if you’re also trying to upload files. Let's break down the problem and explore a solution in a clear and organized way.

The Problem

In your implementation, you're already handling standard form submissions properly. A typical AJAX call using jQuery might look like this:

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

However, when you attempt to modify this code to support file uploads, you switched to using FormData:

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

This change, while needed for file handling, introduced a new challenge: the CSRF token mismatch exception. This can leave you frustrated and wondering what went wrong.

The Solution

Step 1: Add the CSRF Token in Your Blade File

To solve this problem, you should first ensure that the CSRF token is included in the HTML of your page. You can do this by adding a meta tag within the <head> section of your Blade file:

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

Step 2: Adjust Your AJAX Setup

Instead of appending the CSRF token directly to the FormData, we will configure the AJAX headers to include the CSRF token. This prevents the mismatch issue:

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

Step 3: Remove the Token from the FormData

Next, you’ll want to remove the line that appends the CSRF token to your FormData object since it will now be included in the headers:

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

Step 4: Use the Adjusted AJAX Call

Your final AJAX call to send the PUT request should look like this:

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

Conclusion

By following these steps—adding the CSRF token to your Blade file, setting it in your AJAX headers, and adjusting your AJAX call—you can effectively resolve the CSRF token mismatch exception when sending PUT requests via jQuery AJAX, even when handling files. This will streamline your form submissions and enhance the overall experience for your users.

Feel free to integrate these solutions into your development process to avoid unnecessary roadblocks. Happy coding!

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