Welcome, Explore the world of Express.js error handling in our MERN application tutorial! Where we will see how to effectively manage errors with step-by-step guidance on implementing error middleware.
📚 Resources mentioned in our MERN Course & Don't forget to watch 👇
👉 MongoDB Course: https://youtu.be/rU9ZODw5yvU
error-middleware.js
const errorMiddleware = (err, req, res, next) => {
const status = err.status || 500;
const message = err.message || "Backend Error";
const extraDetails = err.extraDetails || "Error from the Backend";
console.error(
`[${req.method}] ${req.path} >> StatusCode:: ${status}, Message:: ${extraDetails} `
);
return res.status(status).json({ message, extraDetails });
};
module.exports = errorMiddleware;also add the middleware at the bottom in our server,.js file
require("dotenv").config();
const express = require("express");
const app = express();
const router = require("./routes/auth-route");
const connectDb = require("./utils/db");
const errorMiddleware = require("./middlewares/error-middleware");
// to get the json data in express app.
app.use(express.json());
// Mount the Router: To use the router in your main Express app, you can "mount" it at a specific URL prefix
app.use("/api/auth", router);
app.use(errorMiddleware);
const PORT = 5000;
connectDb().then(() => {
app.listen(PORT, () => {
console.log(`server is running at port: ${PORT}`);
});
});