How to run index.js on the server?

Question

Node.js

Most likely, I put the question incorrectly, tk. my head is already full of mess

There is index.js

var app = require('express') (); 
var http = require('http').Server(app);
var io = require('socket.io')(http);

And there is jino hosting. I want to deploy socket io there, let’s say everything for the sake of the same example from the documentation, Chat, But how can I do this, I don’t understand the word at all.

Answer 1

As mentioned above, there are hostings that are created only for developing sites with certain engines, for example, PHP development, where all scripts are executed by the Apache / Nginx web server.
And you don't have access to most of the resources. How to determine? Almost always, on this type of hosting, only the public_html folder is directly accessible (for uploading via FTP).
Most likely, this means that your application cannot be executed in any way.
VDS (VPS) is a separate machine with a specific operating system (optional), to the resources of which you have full access. In this case, you can easily run your application. When you rent a virtual machine, you need to manage it through the terminal - using an SSH connection.
If you need an extremely cheap hosting for tests, I can definitely recommend firstvds.ru.
There are several solutions for running the JavaScript programming language: running in a browser, running with Node.js (very popular, choose it), Deno and the rest, which is no longer worth using if you count on support, performance and community.
To run applications on Node.js, you do not need any hosting if you work in test development mode and the required level of access to the site is from your own computer.
Install Node.js from the official site.
Read about package.json and dependencies.
For example here.
And the launch of the application, in the console: node index.js.

Answer 2

And there is jino hosting

I strongly suspect that you have a shared hosting with a typical configuration, tailored for "PHP + MySql"
In this case, no way.
You need to either take VDS / VPS, or purposefully look for a shared node.js support