server.js

const express = require("express");
const bodyParser = require("body-parser");
const path = require("path");
const mongoose = require("mongoose");

const MONGODB_URI = process.env.APTITUDE_API;

const aptQuestion = require("./routes/routes");

const app = express();

const port = 3000;

app.use(bodyParser.json());
app.use((req, res, next) => {
  res.setHeader("Access-Control-Allow-Origin", "*");
  res.setHeader(
    "Access-Control-Allow-Methods",
    "OPTIONS, GET, POST, PUT, PATCH, DELETE"
  );
  res.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");
  next();
});

app.use(express.static(__dirname + "/public"));
app.get("/", (req, res, next) => {
  res.sendFile(path.join(__dirname + "/view/index.html"));
});
app.use("/", aptQuestion);

app.use((error, req, res, next) => {
  const message = error.message;
  const statusCode = error.statusCode;
  if (error.field) {
    return res.json({
      message: message,
      statusCode: statusCode,
      field: error.field,
    });
  }
  return res.json({ message: message, statusCode: statusCode });
});

mongoose
  .connect(MONGODB_URI)
  .then((result) => {
    app.listen(process.env.PORT || 3000);
  })
  .catch((err) => {
    console.log(err);
  });