node-haxball/examples/api_structure/multiJoinRoom.js

The most powerful and lightweight API that allows you to develop your original Haxball(www.haxball.com) host, client, and standalone applications both on node.js and browser environments and also includes every possible hack and functionality that you can

const { OperationType, VariableType, ConnectionState, AllowFlags, Direction, CollisionFlags, CameraFollow, BackgroundType, GamePlayState, BanEntryType, Callback, Utils, Room, Replay, Query, Library, RoomConfig, Plugin, Renderer, Errors, Language, EventFactory, Impl } = require("node-haxball")();
const EnglishLanguage = require("../languages/englishLanguage");
API.Language.current = new EnglishLanguage(API); // if you want to use error.toString()

const N = 3;

var joinFunc = function (currentId) {
  if (currentId >= N)
    return;
  Utils.generateAuth().then(([authKey, authObj])=>{
    Room.join({ 
      id:"qBdXBtQ_OVs", 
      password: "password",
      authObj: authObj
    },{
      storage: {
        player_name: "wxyz-abcd " + currentId,
        avatar: "👽",
        player_auth_key: authKey
      },
      onOpen: (room)=>{
        roomCallbacks(room);
        joinFunc(currentId+1);
      },
      onClose: (msg)=>{
        console.log("Bot has left the room:", msg.toString());
      }
    });
  });
};

joinFunc(0);

function roomCallbacks(room){ // "roomCallbacks" examples start from here. // look at examples/roomConfigs/method1 folder for related examples.
  console.log("joined room " + room.name);
}