index.js

//package imports
require("dotenv").config({ path: "./config.env" })
const express = require("express");
const cors = require("cors");

//file imports
const logger = require("./utils/logger");
const connectDB = require("./config/database");
const errorHandler = require("./middleware/error");

//initialization
connectDB()
const app = express();

//imported middleware
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
app.use(cors())

//custom middleware
app.use("/api/user", require("./routes/user"));

//error middleware
app.use(errorHandler)

//ports
const PORT = process.env.PORT || 4545
app.listen(PORT, () => logger.info(`Connected to port ${PORT}`))

// process termination after unhandles promise rejection
process.on("unhandledRejection", (error, promise) => {
	if(error){
		logger.error("Unhandled Promise Rejection Error :", error)
		process.exit(1)
	} else {
		logger.info("Unhandled Promise Rejection Promise :", promise)
	}
})