Okay.. but what is a reverse proxy?
A reverse proxy is a web server that centralizes internal services and provides unified interfaces to the public. Requests from clients are forwarded to a server that can fulfill it before the reverse proxy returns the server’s response to the client.
Nginx is a popular choice to use as a reverse proxy for your node.js application.
Got it. Now let’s set up Nginx
Let’s say your nodejs server is running locally on localhost:3000.
We will set up Nginx to get the request and forward the request to our nodejs server.
Installing Nginx on ubuntu
sudo apt-get update
sudo apt-get install nginx
Configure Nginx
- Disable the default, virtual host
unlink /etc/nginx/sites-enabled/default
2. Create a configuration file
cd /etc/nginx/sites-available
sudo nano reverse-proxy.conf
3. Put the following content in the file
server {
listen 80;
listen [::]:80;
access_log /var/log/nginx/reverse-access.log;
error_log /var/log/nginx/reverse-error.log;
location / {
proxy_pass http://127.0.0.1:3000;
}
}
4. Create a symbolic link
ln -s /etc/nginx/sites-available/reverse-proxy.conf /etc/nginx/sites-enabled/reverse-proxy.conf
5. Test the configuration
nginx -t
6. If all good restart the server
sudo service nginx restart
Now go to localhost or localhost:80 and the request will be forwarded to the node.js application.
Congratulations our reverse proxy is successfully setup.
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If you are interested in System Design also read how to setup Load balancer in your app here:
https://blog.shashi.dev/2021/01/implementing-load-balancing-with.html
Thanks for reading. If you have some feedback, please provide your response or reach out to me on Twitter or Github.
Happy Coding!!!
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