Fix the 413 Request Entity Too Large error in Laravel running on Nginx

1. Increase client_max_body_size in Nginx

The client_max_body_size directive in Nginx controls the maximum allowed size of the client request body, which includes uploaded files.

Steps:

• Open your Nginx configuration file. This could be located at /etc/nginx/nginx.conf or in a site-specific configuration file under /etc/nginx/sites-available/.

sudo nano /etc/nginx/nginx.conf

• Add or update the client_max_body_size directive inside the http block (or inside server or location blocks, if you prefer):

http {
    client_max_body_size 100M;
}
$ sudo service nginx reload
 
2. Increase post_max_size and upload_max_filesize in PHP
Nginx will pass the request to PHP, and PHP has its own limits. You need to increase the upload_max_filesize and post_max_size in your php.ini file.
Steps:
Find your php.ini file. It is usually located in /etc/php/7.x/fpm/php.ini (on Linux) or C:\xampp\php\php.ini (on Windows).
Open the file and increase the following values:
upload_max_filesize = 100M
post_max_size = 100M
 

Thank you