app.js

/**
 * name : app.js.
 * author : Aman Karki.
 * created-date : 13-July-2020.
 * Description : Root file.
 */

require("dotenv").config();

// express
const express = require("express");
const app = express();

// Health check
require("./healthCheck")(app);

// Setup application config, establish DB connections and set global constants.
require("./config/connections");
require("./config/globals")();

// Check if all environment variables are provided.
const environmentData = require("./envVariables")();

if (!environmentData.success) {
  console.log("Server could not start . Not all environment variable is provided");
  process.exit();
}

//required modules
const fileUpload = require("express-fileupload");
const bodyParser = require("body-parser");
const cors = require("cors");
const path = require("path");
const expressValidator = require('express-validator');

//To enable cors
app.use(cors());
app.use(expressValidator())

app.use(fileUpload());
app.use(bodyParser.json({ limit: "50MB" }));
app.use(bodyParser.urlencoded({ limit: "50MB", extended: false }));

app.use(express.static("public"));

app.all('*', (req, res, next) => {
  console.log("-------Request log starts here------------------");
  console.log("Request URL: ", req.url);
  console.log("Request Headers: ", req.headers);
  console.log("Request Body: ", req.body);
  console.log("Request Files: ", req.files);
  console.log("-------Request log ends here------------------");
  next();
});


// Router module
const router = require("./routes");

//add routing
router(app);

//listen to given port
app.listen(process.env.APPLICATION_PORT, () => {
  console.log("Environment : " + process.env.APPLICATION_ENV);
  console.log("Application is running on the port : " + process.env.APPLICATION_PORT);
});

module.exports = app;