Nginx Redirection Rule

I am trying to redirect

• https://example.com/1001/def.txt -> https://example.com/1001/1/def.txt
• https://example.com/1001/* -> https://example.com/1001/1/*

location /2023/ {
  if ($request_uri ~* "/2023/(.*)") {
    return 302 /1/$2 break;
  }
}

The problem I am facing is that, whenever I am trying to match the path /1001/ and redirect it to the destination path, that also contains 1001 in /1001/1/, the request goes into an infinite loop.

To prevent infinite loop, you need to use a rewrite condition that only matches the original URL and not the rewritten one. You can achieve the desired redirection using the following nginx configuration:

server {
    listen 80;
    server_name example.com;
    location /1001/ {
        if ($request_uri !~ "^/1001/1/") {
            rewrite ^/1001/(.*)$ /1001/1/$1 permanent;
        }
        # Your other server configuration
    }
}

This configuration uses the if directive to add a condition that the URL should not contain /1001/1/. The rewrite directive is then used to redirect requests to /1001/ to /1001/1/. The $1 in the destination URL captures the portion of the URL that matched the (.*) pattern. The permanent flag indicates that this should be a permanent redirect.

You can try following setup:

location ~ ^/1001/[1-9]/ {
    # block configuration
}

location ~ ^/1001/(.*) {
    return 302 /1001/1/$1;
}

The order of location blocks is significant: nginx uses the first matching regular expression location for processing the request. You can adjust the regular expression in first location block to more accurately match your desired target URL structure.