app.js

const express = require("express");
const path = require("path");
const favicon = require("serve-favicon");
const logger = require("morgan");
const cookieParser = require("cookie-parser");
const bodyParser = require("body-parser");
const JobManager = require("./manager");

const app = express();

expressInitialization();
jobsInitialization();
errorHandlersInitialization();

module.exports = app;

function jobsInitialization () {
  JobManager.initializeJobs();
  require('./utils/telegraf');
}

function expressInitialization () {
  // uncomment after placing your favicon in /public
  // app.use(favicon(path.join(__dirname, "public", "favicon.ico")));
  app.use(logger("dev"));
  app.use(bodyParser.json());
  app.use(bodyParser.urlencoded({extended: false}));
  app.use(cookieParser());

}

function errorHandlersInitialization () {
  // catch 404 and forward to error handler
  app.use(function (req, res, next) {
    const err = new Error("Not Found");
    err.status = 404;
    next(err);
  });

  // error handler
  app.use(function (err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get("env") === "development" ? err : {};

    // render the error page
    res.status(err.status || 500);
    res.render("error");
  });
}