SoFunction
Updated on 2025-03-03

A brief analysis of how Nginx implements interface shunt

Implementing interface shunt in Nginx can be configuredlocationBlocks and reverse proxy are done. This method allows forwarding requests to different backend services or processing logic based on different URL paths, request methods, or request header features.

Here are the basic steps and example configurations for implementing interface shunt:

Basic steps

  • Install Nginx: Make sure that Nginx is already installed on your server.
  • Edit Nginx configuration file: Usually/etc/nginx/or/etc/nginx/sites-available/default。
  • Define server block:existserverDefine multiple in blockslocationpiece.
  • Use the proxy_pass directive: In eachlocationIn the block, useproxy_passThe directive forwards the request to the corresponding backend service.

Sample configuration

Here is a simple Nginx configuration example where interface requests are diverted to different backend services:

server {
    listen 80;
    server_name ;

    #Interface A    location /api/v1/ {
        proxy_pass http://backend1:5000;  # Forward to backend service 1        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    #Interface B    location /api/v2/ {
        proxy_pass http://backend2:6000;  # Forward to backend service 2        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    #Default processing    location / {
        root /var/www/html;  # root directory of static files        index  ;
    }
}

illustrate

  • server_name: Specify the server name to match the requested Host.
  • location /api/v1/andlocation /api/v2/: Define different interface paths and divert them to different backend services respectively.
  • proxy_pass: Forward the request to the specified backend service,backend1:5000andbackend2:6000It is the address of the backend service.
  • proxy_set_header: Set the request header to ensure that the backend can obtain the correct client information.

Test and restart Nginx

After the configuration is complete, you can use the following command to test the correctness of the configuration file:

sudo nginx -t

If there is no error, restart Nginx to make the configuration take effect:

sudo systemctl restart nginx

Summarize

Through the above steps, you can implement interface shunt in Nginx and forward requests to different backend services according to different URL paths. This method can effectively manage and extend your API services.

This is the end of this article about a brief analysis of how Nginx implements interface diversion. For more related content on Nginx interface diversion, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!