How to set up the launch of three applications on the server with a bunch of nginx and react?

Question

Nginx

Hello, what is the problem:
Three applications should be running on the server:
1. React-create-app, port 3000: this is a landing page, it is located at url: example.com/
2. React+route+express, port 9000: this is personal office, when a person enters from the landing, he should be transferred to example.com/home/ - another application works along this path.
3. The server which is started on 8080 working from a DB. requests from the site come to it, they are sent to example.com/server/
When the second application is restarted, it crashes, the file is in nginx

root /this/my/folder;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;

        location / {
        proxy_pass http://localhost:3000;
        root /this/my/folder/one/build;
        }

        location /home/ {
        proxy_pass http://example.com:9000/;
        root /this/my/folder/two/dist;
        }

        location /server/ {
        proxy_pass http://example.com:8080/;
        }

Pasting it somewhere try $uri $uri/ /index.htmldoesn't help.
If I change the path in index.html from <script src="/js/app.bundle.js"></script>to <script src="js/app.bundle.js"></script>, then the page is loaded, but when reloading the page does not work.

Answer 1

With God's help, I found the answer to this question:
Firstly, the root directive was really not needed, proxy_pass was enough.
Secondly, the second application accesses the address example.com/home/, added to index.html the absolute path not <script src="/js/app.bundle.js"></script>, but <script src="/home/js/app.bundle.js"></script>, and so on to all paths in the index of the second application