[Adonis 4.1] How can i register a Class into IoC ?

[wemersonrv]

I have a "Service" class, and need to put it to IOC as a singleton... where do i add it?

I tried to add in a Custom Service Provider but nothing happens...

"use strict";

const path = require("path");
const { ServiceProvider, ioc } = require("@adonisjs/fold");

class WhatsAppProvider extends ServiceProvider {
  /**
   * Register namespaces to the IoC container
   *
   * @method register
   *
   * @return {void}
   */
  register() {
    ioc.singleton("WemersonRV/WhatsApp", function (app) {
      const WhatsAppService = require(path.join(
        __dirname,
        "../app/Services/WhatsAppService"
      ));

      console.log("I think it's fine....");

      return new WhatsAppService();
    });
  }

  /**
   * Attach context getter when all providers have
   * been registered
   *
   * @method boot
   *
   * @return {void}
   */
  boot() {
    //
  }
}

module.exports = WhatsAppProvider;

[franciskisiara]

I'm pretty much trying to figure this out as well but seems there isn't much traction with this for one reason or another.
If you come across a solution do tag it here. I will do the same if I do.

[wemersonrv]

I'm pretty much trying to figure this out as well but seems there isn't much traction with this for one reason or another.
If you come across a solution do tag it here. I will do the same if I do.

Well;.. i think i made it right because it works fine... and just before the ioc.singleton... line I debugged it and works... so, it just nothing happens...

[wemersonrv]

WOW!!! Understand it now!

The code is right. I just missunderstood how it works!

I thought it would already start with the application, but it is registered only... and keeps this way until first user request comes in,so the singleton is initialized and, in the next ones, it is reused!

Or register the singleton into IoC in ServiceProvider register method and do the 1st use of it in boot method of same provider, making it available when app starts... I think this is the best way because let the lib's listeners and handlers working when app starts.