nginx.conf

# user  nginx;
worker_processes 1;
error_log  /var/log/nginx/error.log notice;
pid        /var/tmp/nginx/nginx.pid;

events { worker_connections 1024; }

http {
    include /etc/nginx/mime.types;
    proxy_pass_header Authorization;
    proxy_pass_request_headers on;
    client_body_temp_path  "/var/tmp/nginx/client_body" 1 2;
    proxy_temp_path        "/var/tmp/nginx/proxy" 1 2;
    fastcgi_temp_path      "/var/tmp/nginx/fastcgi" 1 2;
    scgi_temp_path         "/var/tmp/nginx/scgi" 1 2;
    uwsgi_temp_path        "/var/tmp/nginx/uwsgi" 1 2;

    sendfile on;

    server {
        listen 8080;

        location / {
            root   /usr/share/nginx/html;
            index  index.html index.htm;
            try_files $uri $uri/ /index.html?/$request_uri;
        }
        location /flowify-server/api {
            if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Headers' 'Authorization,Accept,Origin,DNT,X-CustomHeader,Keep-Alive,User-Agent,
                X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
                add_header 'Access-Control-Allow-Methods' 'GET,POST,OPTIONS,PUT,DELETE,PATCH';
                add_header 'Content-Type' 'application/json';
                add_header 'Content-Length' 0;
                return 204;
            }
            add_header 'Access-Control-Allow-Origin' '*';
            add_header 'Access-Control-Allow-Headers' 'Authorization,Accept,Origin,DNT,X-CustomHeader,Keep-Alive,User-Agent,
            X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
            add_header 'Access-Control-Allow-Methods' 'GET,POST,OPTIONS,PUT,DELETE,PATCH';
            # flowify_token_auth
            proxy_pass http://${FLOWIFY_SERVER_HOST}:${FLOWIFY_SERVER_PORT}/api;
        }
    }
}