To create a production build you need to run the command npm run build. It will create the build folder, that contains the production build files. Now you just need to upload the build files on to the server.

Static Server:

For environments using Node, the easiest way to handle this would be to install serve and let it handle the rest:

npm install -g serve
serve -s build 

Other Solutions:

You don’t necessarily need a static server in order to run a project in production. It works just as fine integrated into an existing dynamic one.

Here’s a programmatic example using Node and Express:

const express = require('express');
const path = require('path');
const app = express();
app.use(express.static(path.join(__dirname, 'build')));
app.get('/', function (req, res) {
   res.sendFile(path.join(__dirname, 'build', 'index.html'));
});
app.listen(9000); 

Apache HTTP server:

If you’re using Apache HTTP Server, you need to create a .htaccess file in the public folder that looks like this:

Options -MultiViews
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.html [QSA,L]

Upload the build files in the public folder.