Discord Rich Presence DiscordRPC. How to send requests?

Question

Node.js

I have code:

const startTimestamp = new Date();
  rpc.setActivity({
    startTimestamp,
    state: "HHelper Developer's Team",
    details: "Разработка ботов",
    largeImageKey: "hhelper",
    largeImageText: "HHelper Bot",
    smallImageText: "Head Developer",
    partyId: "123123123",
    partySize: 3,
    partyMax: 3,
    instance: false,
  });

How to send requests to Discord? What "transport" to use?
How to authorize DiscordRPC? Is it possible to send a request to an account bot?