nginx reverse proxy example

Example 1: nginx reverse proxy node js

. . .
    location / {
        proxy_pass http://localhost:8080;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}

Example 2: pass proxy nginx

location ~ \.php {
    proxy_pass http://127.0.0.1:8000;
}

Example 3: nginx reverse proxy multiple folders

location ~ ^/app1(.*)$ {
    proxy_pass http://proxy.example.com$1;
}

-OR-

location /app1 {
    proxy_pass http://proxy.example.com/app1;
}