server {
	listen 443 ssl http2;
	listen [::]:443 ssl http2;
	server_name example.com;

	index index.html;
	root /var/www/html;
	ssl on;
	ssl_certificate /path/to/example.cer;
	ssl_certificate_key /path/to/example.key;
	ssl_protocols TLSv1.2 TLSv1.3;
	ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
	
	# 在 location 后填写 /你的 path/
	location /你的 path/ {
	if ($http_upgrade != "websocket") {
		return 404;
	}
        proxy_pass http://127.0.0.1:1234/;
	proxy_redirect off;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_read_timeout 5d;
    }
}