Reddit Chat (via SendBird) reverse engineering

reddit-sendbird.ts

import * as request from "request";
import * as SendBird from "sendbird";

const sendbirdServiceUrl = "https://sendbird.reddit.com";
const sendbirdAppId = "2515BDA8-9D3A-47CF-9325-330BC37ADA13";

const userId = "t2_mv8j9bt"; // chatrev1
const accessToken = "49777998329-oof4CSA1jedsnu6pXgJj_SFIk7o";
// accessToken (bearer):
// full (personalized) oauth2 access token (from web/installed reddit app): user id base 10 - oauth2 access token
//   49777998329-H9hcJ0dWF73yFI24LRdxzzBhUp8
//   49777998329-oof4CSA1jedsnu6pXgJj_SFIk7o
// partial (unpersonalized) oauth2 access tokens (from script reddit app) don't work
//   -oof4CSA1jedsnu6pXgJj_SFIk7o

const sendbirdServiceRequest = request.defaults({
    baseUrl: sendbirdServiceUrl,
    auth: {
        bearer: accessToken
    },
    json: true
});

sendbirdServiceRequest("/api/v1/sendbird/me", (err, res, body) => {
    const sbAccessToken = body.sb_access_token;
    console.log(sbAccessToken);

    sendbirdServiceRequest("/api/v1/sendbird/config", (err, res, body) => {
        const proxyHost = body.proxy_host;
        console.log(proxyHost);

        let sb = new SendBird({
            appId: sendbirdAppId
        });

        sb.connect(userId, sbAccessToken, "https://" + proxyHost, "wss://" + proxyHost, (user, error) => {
            console.log(user);
        
            sb.GroupChannel.createMyGroupChannelListQuery().next((channelList, error) => {
                console.log(channelList);
        
                // let channel = channelList[0];
                // channel.sendUserMessage("Test", (message, error) => {
                //     console.log(message);
                // });
            });
        });
    });
});