Telegram webhooks with nginx reverse proxy

README.md

Make config file:

sudo nano /etc/nginx/sites-available/bot.conf

Then copy and paste bot.conf content and edit YOUR.DOMAIN strings. Now install Let's Encrypt on your server. For example in Debian you need to add jessie-backports and easily install it with apt-get:

sudo apt-get install -t jessie-backports letsencrypt

Then get cert for you domain:

sudo letsencrypt certonly --standalone --email MAIL@YOUR.DOMAIN -d YOUR.DOMAIN --rsa-key-size 4096

Don't forget, you DNS A and AAAA record should point on server there you setup it, e. g. on your VPS.

Now get Diffie-Hellman key:

sudo openssl dhparam -dsaparam -out /etc/letsencrypt/live/YOUR.DOMAIN/dhparam.pem 4096

Make symlink on your new nginx config and restart nginx:

sudo ln -s /etc/nginx/sites-available/bot.conf /etc/nginx/sites-enable/bot.conf
sudo systemctl restart nginx

Ensure that you replace this:

const tg = new Telegram.Telegram('YOUR_TOKEN');

on this:

const tg = new Telegram.Telegram('YOUR_TOKEN', {
    webhook: {
        url: 'https://YOUR.DOMAIN',
        port: 3000,
        host: 'localhost'
    }
})

bot.conf

server {
	listen 80;
	listen [::]:80;
	server_name YOUR.DOMAIN;
	return 301 https://$server_name$request_uri;
}

server {
	listen 443 ssl http2;
	listen [::]:443 ssl http2;
	server_name YOUR.DOMAIN;

	error_log /var/log/nginx/bot.error.log error;

	### START OF SSL CONFIGURATION ###

	ssl on;

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
	ssl_chiphers 'EECDH+AESGCM:EECDH+AES256';
	
	ssl_ecdh_curve secp384r1;
	ssl_prefer_server_ciphers on;

	ssl_session_cache shared:SSL:10m;
	ssl_session_timeout 1d;

	ssl_stapling on;
	ssl_stapling_verify on;

	ssl_certificate /etc/letsencrypt/live/YOUR.DOMAIN/fullchain.pem;
	ssl_certificate_key /etc/letsencrypt/live/YOUR.DOMAIN/privkey.pem;

	ssl_trusted_certificate /etc/letsencrypt/live/YOUR.DOMAIN/fullchain.pem;
	ssl_dhparam /etc/letsencrypt/live/YOUR.DOMAIN/dhparam.pem;

	### END OF SSL CONFIGURATION ###

	add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload";

	location / {
		proxy_set_header Host $http_host;
		proxy_set_header X-Real-IP $remote_addr;
		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		proxy_set_header X-Forwarded-Proto $scheme;

		proxy_pass http://localhost:3000;
	}
}