apollo/app.js

const config = require("./config/configuration");
const express = require('express');
const helmet = require("helmet");
const logger = require("./services/logging");
const rateLimit = require("express-rate-limit");
const sessions = require("./services/session-manager");
const PlexTracker = require("./services/trackers/plex-tracker");
const SpotifyTracker = require("./services/trackers/spotify-tracker");
const Recorder = require("./services/recorder");
const MalojaScrobbler = require("./services/scrobblers/maloja-scrobbler");


let trackers = []
trackers = trackers.concat(config.spotify.map(config => new SpotifyTracker(config)));
trackers = trackers.concat(config.plex.map(config => new PlexTracker(config)));

const uniqueSpotifys = new Set(config.spotify.map(c => c.client_id));
for (let spotify of uniqueSpotifys)
  (async () => await spotify.loadCredentials())();

const scrobblers = config.maloja.map(config => new MalojaScrobbler(config, logger));
const recorder = new Recorder(sessions, trackers, scrobblers, config.scrobble, logger);

setInterval(() => recorder.record(), 5000);

const app = express();
app.use(express.json());
app.use("/", require("./routes/home"));
app.use("/api", require("./routes/api"));

const limiter = rateLimit({
  legacyHeaders: true,
  standardHeaders: true,
  windowMs: 15 * 60 * 1000,
  limit: 50,
  max: 2,
  message: "Too many requests; please try again later.",
  keyGenerator: (req) => req.ip,
});

app.use(helmet());
app.use(limiter);

const PORT = config.web.port || 9011;
app.listen(PORT, () => {
  logger.info("Listening to port " + PORT + ".");
});