nginx.conf

we use nginx web server to serve our application
it listens on the port 80 and then uses reverse proxy to redirect various page routes to different servers hosting different microservices.

server{
    listen 80 default_server;
    server_name _;

    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $remote_addr;

    location / {
        proxy_pass http://localhost:3470;
    }
    location /api/ras {
        proxy_pass http://localhost:3470;
    }
    location /api/auth {
        proxy_pass http://localhost:3475;
    }
    location /api/student {
        proxy_pass http://localhost:3480;
    }
    location /api/company {
        proxy_pass http://localhost:3485;
    }
    location /api/admin/rc {
        proxy_pass http://localhost:3490;
    }
    location /api/admin/application/rc {
        proxy_pass http://localhost:3492;
    }
    location /api/admin/company {
        proxy_pass http://localhost:3495;
    }
    location /api/admin/student {
        proxy_pass http://localhost:3500;
    }
}

our server listens on port 80, which is the port exposed to the world:

listen 80 default_server;
    server_name _;

the page requests that it gets are routed to other ports using the commands like :

location / {
        proxy_pass http://localhost:3470;
    }

see when route is location / and then redirect them to a given port by proxy_pass <url>