app.js

const path = require('path');

const express = require('express');
const bodyParser = require('body-parser');
const multer = require('multer');
const cors = require('cors');

const connectDB = require('./config/db');

const app = express();

//setting up file upload tool Multer
const fileStorage = multer.diskStorage({
  destination: (req, file, cb) => {
    // setting destination of uploading files
    if (file.fieldname === 'resumeFile') {
      // if uploading resume
      cb(null, 'uploads/resumes');
    } else {
      // else uploading image
      cb(null, 'uploads/profile-pictures');
    }
  },
  filename: (req, file, cb) => {
    // naming file
    cb(null, Date.now() + '-' + file.originalname);
  },
});

const fileFilter = (req, file, cb) => {
  if (file.fieldname === 'resumeFile') {
    // if uploading resume
    if (!file.originalname.match(/\.(doc|DOC|docx|DOCX|pdf|PDF)$/)) {
      req.fileValidationError = 'Only doc type files are allowed!';
      return cb(new Error('Only doc type files are allowed!'), false);
    }
    cb(null, true);
  } else {
    // else uploading image
    if (!file.originalname.match(/\.(jpg|JPG|jpeg|JPEG|png|PNG)$/)) {
      req.fileValidationError = 'Only image files are allowed!';
      return cb(new Error('Only image files are allowed!'), false);
    }
    cb(null, true);
  }
};

//registering routes files
const authRoute = require('./routes/auth');
const userRoute = require('./routes/user');
const companyRoute = require('./routes/company');
const postRoute = require('./routes/post');
const stateRoute = require('./routes/state');
const tagRoute = require('./routes/tag');

//connect Database
connectDB();

//init middleware
app.use(express.json({ extended: false }));

app.use(cors());

app.use(bodyParser.urlencoded({ extended: false }));

app.use(
  multer({ storage: fileStorage, fileFilter: fileFilter }).fields([
    {
      name: 'resumeFile',
      maxCount: 1,
    },
    {
      name: 'profilePictureFile',
      maxCount: 1,
    },
  ]),
);
app.use(
  '/file',
  express.static(path.join(__dirname)),
);

app.get('/', (req, res, next) => res.send('API Running...'));

app.use('/api/auth', authRoute);
app.use('/api/company', companyRoute);
app.use('/api/user', userRoute);
app.use('/api/posts', postRoute);
app.use('/api/states', stateRoute);
app.use('/api/tags', tagRoute);

const PORT = process.env.PORT || 5000;

app.listen(PORT, () => {
  console.log(`Server started on port ${PORT}`);
});