Fix client intended to send too large body: xyz bytes in Nginx

If you are seeing an error message that says "client intended to send too large body: xyz bytes" in Nginx, it means that the client (usually a web browser) is trying to send a request body (such as the body of a POST request) that is larger than the maximum allowed size.

To fix this issue, you will need to increase the maximum allowed size for request bodies in Nginx. You can do this by modifying the client_max_body_size directive in the Nginx configuration file.

Here's an example of how to increase the maximum allowed size for request bodies to 50MB:

http {
    client_max_body_size 50M;
    # ... other configuration directives
}

You can specify the maximum allowed size in bytes, or you can use the k or M suffix to specify the size in kilobytes or megabytes, respectively.

After modifying the client_max_body_size directive, you will need to reload the Nginx configuration for the changes to take effect. You can do this by running the following command:

sudo nginx -s reload