This is nginx configuration file for WordPress and Node.js running parallel.

nginx

server {
	listen   80;
	
	root /var/www;
	index index.php index.html index.htm;
	
	error_page 404 /404.html;
	
	error_page 500 502 503 504 /50x.html;
	location = /50x.html {
		root /usr/share/nginx/www;
	}
	
	# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
	location ~ \.php$ {
		try_files $uri =404;
		#fastcgi_split_path_info ^(/blog)(/.*)$; //cause 'invalid post type' on 'edit.php' page, so comment out
		fastcgi_pass 127.0.0.1:9000;
		fastcgi_index index.php;
		include fastcgi_params;
	}

	location /blog {
		try_files $uri $uri/ /blog/index.php?$args;
	}	

	location / {
		proxy_pass http://localhost:3000;
	}
}