wordpress subdir on nginx with anther nodejs web app

wordpress_sub_dir.conf

server {

	root /home/thixanvat/prod/web;
	server_name thixanvat.com www.thixanvat.com;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_set_header Host $http_host;
	proxy_set_header X-NginX-Proxy true;

	location /assets/ {

		alias /home/thixanvat/prod/web/build/public/assets/;
		add_header Cache-Control public;
	}

	location /googled66e20f90cafdfc7.html {

		try_files $uri =404; # googled66e20f90cafdfc7.html;
	}

	# sitemaps
	rewrite /blog/sitemap(-+([a-zA-Z0-9_-]+))?\.xml$ "/blog/index.php?xml_sitemap=params=$2" last;
	rewrite /blog/sitemap(-+([a-zA-Z0-9_-]+))?\.xml\.gz$ "/blog/index.php?xml_sitemap=params=$2;zip=true" last;
	rewrite /blog/sitemap(-+([a-zA-Z0-9_-]+))?\.html$ "/blog/index.php?xml_sitemap=params=$2;html=true" last;
	rewrite /blog/sitemap(-+([a-zA-Z0-9_-]+))?\.html.gz$ "/blog/index.php?xml_sitemap=params=$2;html=true;zip=true" last;

	# adding trailing slash to the end
	rewrite ^([^.]*[^/])$ $1/ permanent;

	location /blog/ {

		access_log /var/log/nginx/blog/access.log;
		error_log /var/log/nginx/blog/error.log;

		alias /home/thixanvat/blog/;
		index index.php;

		# url permanant
		rewrite ^/blog/wp-admin/$ /blog/wp-admin/options-general.php permanent;
		rewrite ^/blog/(.*)/$ /blog/index.php?$1 last;

		location ~ \.php$ {

			include /etc/nginx/fastcgi_params;
			fastcgi_pass unix:/run/php/php7.1-fpm.sock;
			fastcgi_param SCRIPT_FILENAME $request_filename;
		}
	}

	fastcgi_param SCRIPT_FILENAME $request_filename;
}
}

location = /robots.txt {

	allow all;
	log_not_found off;
	access_log off;
}

location / {

	rewrite ^/assets(.*)$ $1 break;

	proxy_set_header Upgrade $http_upgrade;
	proxy_set_header Connection "upgrade";
	proxy_max_temp_file_size 0;
	proxy_pass http://127.0.0.1:8000;
	proxy_redirect off;
	proxy_read_timeout 240s;

}

listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/thixanvat.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/thixanvat.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}


server {

	if ($host = www.thixanvat.com) {

		return 301 https://$host$request_uri;
		} # managed by Certbo
	}
	# managed by Certbot


	if ($host = thixanvat.com) {

		return 301 https://$host$request_uri;
		} # managed by Certbo
	}
	# managed by Certbot


	listen 80;

	server_name thixanvat.com www.thixanvat.com;

	return 404; # managed by Certbot
}