Configure nginx to serve query string parameter

We have one NextJs site, with next export we get one out folder which we want to serve from Nginx. In out/login there is one '[[...parameter]].html'. When we deploy site using pm2 it is working if we hit url "serverIP:port/login/programID/applicant"

But when serving through nginx it is not working.

Below is the nginx configuration file content:

server{

    listen 7001;
    server_name server_ip;
    root /var/www/html/out/;
   location / {

            try_files $uri $uri.html  $uri.html/ =404;
   }

}

Please help. I am new to nginx so having some difficulties.

Query string refers to GET parameters which you provide after URL e.g ?name=foo. My guess is that you want to serve files in a directory instead, since you mention "out folder which we want to serve from Nginx".

In this case your example should work fine, but your try_files rule expects that you also provide the file name inside the URL.

So when you are requesting GET www.mysite.com then Nginx tries to find a path inside the root directory with either name /, .html, .html/ or fail with 404 error code. Path .html/ refers to a directory named .html inside your root and is probably a mistake.

In case you have a file named index.html in your specified root directory then following requests would match for it:

• GET www.mysite.com/index.html (because of $uri)
• GET www.mysite.com/index (because of $uri.html)

What you probably are looking for is this:

location / {
   root /var/www/html/out;
   index index.html index.htm;
   try_files $uri $uri/ =404;
}

This does following:

• Is there an actual file, specified by $uri, in your root directory - then serve this.
• Is there a directory path, specified by $uri, in your root directory?
  • If yes, check if it contains a file named index.html or index.htm - then serve this.
• None of the above, return 404.

So GET www.mysite.com would try to find a file index.html or index.htm inside your root.

In case you still mean query strings you could write something like this:

location / {
    root /var/www/html/out;
    try_files /$arg_file =404;
}

Then request like GET www.mysite.com?file=index.html would search for a file index.html inside your root. Nginx is awesome, isn't it?

Hope this helps :)

Also read more about try_files and Nginx Pitfalls and Common Mistakes.