app.js

require("dotenv").config();
require("express-async-errors");

// extra security packages
const helmet = require('helmet')
const cors = require('cors')
const xss = require('xss-clean')
const rateLimiter = require('express-rate-limit')

// Swagger
const swaggerUI = require('swagger-ui-express')
const YAML = require('yamljs')
const swaggerDocument = YAML.load('./swagger.yaml')

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

//connectDB
const connectDB = require("./db/connect");

const authenticateUser = require("./middleware/authentication");

//routes
const authRouter = require("./routes/auth");
const jobsRouter = require("./routes/jobs");

// error handler
const notFoundMiddleware = require("./middleware/not-found");
const errorHandlerMiddleware = require("./middleware/error-handler");

app.set('trust proxy', 1)
app.use(rateLimiter({
  windowMs: 15 * 60 * 1000, // 15 minutes
	max: 100, 
}));
app.use(express.json());
app.use(helmet());
app.use(cors());
app.use(xss());
// extra packages

app.get('/', (req,res)=>{
  res.send('<h1>jobs API</h1><a href="/api-docs">Documentation</a>')
})
app.use('/api-docs', swaggerUI.serve, swaggerUI.setup(swaggerDocument))

// routes

// domain/api/v1/auth/login
// domain/api/v1/auth/register
app.use("/api/v1/auth", authRouter);

// domain/api/v1/jobs
// domain/api/v1/jobs/:id
app.use("/api/v1/jobs", authenticateUser, jobsRouter);

app.use(notFoundMiddleware);
app.use(errorHandlerMiddleware);

const port = process.env.PORT || 3000;

const start = async () => {
  try {
    await connectDB(process.env.MONGO_URI);
    app.listen(port, () =>
      console.log(`Server is listening on port ${port}...`)
    );
  } catch (error) {
    console.log(error);
  }
};

start();