NGINX Config File for Microservice Subfolder Architecture - vue.js

Question

Please bear with me as I don't have much experience configuring Nginx.
I want to create micro-services as subfolders. eg: www.example.com/users
USERS is the micro-service so USERS will be the name of the subfolder as well.
The website can be hosted at /var/www/html/ or /var/www/html/example.com/public_html (Assuming this one for this question)
So inside the main folder, /var/www/html/example.com/public_html there are many folders, each representing a micro-service.
/var/www/html/example.com/public_html/users/
/var/www/html/example.com/public_html/students/
/var/www/html/example.com/public_html/teachers/
/var/www/html/example.com/public_html/parents/
Each micro-service will have a latest folder which holds the code to be executed.
/var/www/html/example.com/public_html/users/latest/
Each latest folder has 2 folders - APP which holds the SPA front end code and API which holds the API code
/var/www/html/example.com/public_html/users/latest/app/
/var/www/html/example.com/public_html/users/latest/api/
I would like to add and delete folders as required without making changes to the Nginx config file.
If the folder exists, i would like the relevant front end code to be displayed. Else 404
I am aware that I can add the folders as required in Nginx location but that is not what I want.
(DON'T WANT TO DO THE BELOW CODE)
location /users {
alias /var/www/html/example.com/public_html/users/latest/app
}
location /api/users {
alias /var/www/html/example.com/public_html/users/latest/api
}
I am trying to figure out if I can configure NGINX to point to the relevant folder based on the url.
This is what I have so far but it just shows as 404 for everything I am trying. I am working towards writing the API in Go-lang but since I have experience using PHP I am taking that route first before switching to Go.
server {
listen 80;
listen [::]:80;
server_name _;
root /var/www/html/example.com/public_html;
index index.html;
location ^/<service>/<additional-optional-parameters-can-go-here>$ {
root /var/www/html/example.com/public_html/<service>/latest/app;
try_files $uri $uri/ =404
}
location ^/api/<service>/<additional-optional-parameters-can-go-here>$ {
root /var/www/html/example.com/public_html/<service>/latest/api;
try_files $uri $uri/ =404
location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_param SCRIPT_FILENAME $request_filename;
fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
}
}
location ~ /\.ht {
deny all;
}
}

Answer 1

I think you can use regex in the location and server lines.
Perhaps that will help
server_name ~^(?<subdomain>.+)\.domain\.tdl$ ~^(?<subdomain>.+)\.domain2\.tdl$ domain.tdl domain2.tdl;
location ~ ^/sitename/[0-9a-z]+/index.php$ {
fastcgi_pass phpcgi;
}
location ~ \.php$ {
return 404;
}
location ~ ^/a/b/(?<myvar>[a-zA-Z]+) {
# use variable $myvar here
if ($myvar = "sth") { ... }
}
# Example using the subdomain var created in last steps
sub_filter_once off;
sub_filter 'Site Text' '$subdomain';
sub_filter 'Site Text' '$myvar';
Personally I like to create different conf files for each service, then issue a "service nginx reload". Perhaps you could also automate the conf file generation.

Answer 2

Just incase anyone else is trying a similar approach.
I went on Freelancer.com and hired someone to help me.
location ~ ^/api/([a-z]+)/.*?$ {
alias $folder_path/$1/$api_path;
rewrite ^/api/([a-z]+)/.*?$ /$1/$api_path last;
}
location ~ ^/([a-z]+)/(?:(?!\blatest\b).)*$ {
alias $folder_path/$1/$app_path;
rewrite ^/([a-z]+)/(?:(?!\blatest\b).)*$ /$1/$app_path last;
}