Use prerender.io with my existing nginx configuration - nginx

Question

I am trying to implement Dynamic Rendering for google.
I have a server on Laravel Forge for serving a Nuxt.js application and I want to use prerender.io
Prerender.io gives an nginx config to use but my current config seems a lot different from it. I don't have any experience with it so I am asking for help if there is anyone who can help.
This is my current nginx config
# FORGE CONFIG (DO NOT REMOVE!)
include forge-conf/beta.example.com/before/*;
map $sent_http_content_type $expires {
"text/html" epoch;
"text/html; charset=utf-8" epoch;
default off;
}
server {
listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name beta.example.com;
root /home/forge/beta.example.com/dist;
# FORGE SSL (DO NOT REMOVE!)
ssl_certificate /etc/nginx/ssl/beta.example.com/50331/server.crt;
ssl_certificate_key /etc/nginx/ssl/beta.example.com/50331/server.key;
ssl_protocols TLSv1.2;
ssl_ciphers ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384;
ssl_prefer_server_ciphers on;
ssl_dhparam /etc/nginx/dhparams.pem;
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options "nosniff";
charset utf-8;
gzip on;
gzip_types text/plain application/xml text/css application/javascript;
gzip_min_length 1000;
# FORGE CONFIG (DO NOT REMOVE!)
include forge-conf/beta.example.com/server/*;
location / {
expires $expires;
proxy_redirect off;
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_set_header X-Forwarded-Proto $scheme;
proxy_read_timeout 1m;
proxy_connect_timeout 1m;
proxy_pass http://127.0.0.1:3000; # set the adress of the Node.js
}
access_log off;
error_log /var/log/nginx/beta.example.com-error.log error;
location ~ /\.(?!well-known).* {
deny all;
}
}
# FORGE CONFIG (DO NOT REMOVE!)
include forge-conf/beta.example.com/after/*;
This is how it should look like
https://gist.github.com/thoop/8165802
My main question basically is what happens to the current location / block.

Answer 1

You have two ways to achieve your goal:
Nuxt.js has its own pre-render solution. you could find it here.
If you still want to use prerender.io, here is an example:
I saw that your Nginx is proxying all traffic to http://127.0.0.1:3000, which is presumably a backend written in Node.js. So you could directly update your location / block to use prerender.io to catch everything.
...
location / {
proxy_set_header X-Prerender-Token YOUR_TOKEN;
set $prerender 0;
if ($http_user_agent ~* "googlebot|bingbot|yandex|baiduspider|twitterbot|facebookexternalhit|rogerbot|linkedinbot|embedly|quora link preview|showyoubot|outbrain|pinterest|slackbot|vkShare|W3C_Validator") {
set $prerender 1;
}
if ($args ~ "_escaped_fragment_") {
set $prerender 1;
}
if ($http_user_agent ~ "Prerender") {
set $prerender 0;
}
if ($uri ~* "\.(js|css|xml|less|png|jpg|jpeg|gif|pdf|doc|txt|ico|rss|zip|mp3|rar|exe|wmv|doc|avi|ppt|mpg|mpeg|tif|wav|mov|psd|ai|xls|mp4|m4a|swf|dat|dmg|iso|flv|m4v|torrent|ttf|woff|svg|eot)") {
set $prerender 0;
}
#resolve using Google's DNS server to force DNS resolution and prevent caching of IPs
resolver 8.8.8.8;
if ($prerender = 1) {
#setting prerender as a variable forces DNS resolution since nginx caches IPs and doesnt play well with load balancing
set $prerender "service.prerender.io";
rewrite .* /$scheme://$host$request_uri? break;
proxy_pass http://$prerender;
}
try_files #backend;
}
location #backend {
expires $expires;
proxy_redirect off;
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_set_header X-Forwarded-Proto $scheme;
proxy_read_timeout 1m;
proxy_connect_timeout 1m;
proxy_pass http://127.0.0.1:3000; # set the adress of the Node.js
}
...