Express res.status() Function

The res.status() function sets the HTTP status for the response. It is a chainable alias of Node’s response.statusCode. 

Syntax:

res.status( code )

Parameter: This function accepts a single parameter code that holds the HTTP status code. 

Return Value: It returns an Object. 

Steps to create the Express App and Installing the Modules:

Step 1: Initializing the Nodejs app using the below command:

npm init -y

Step 2: Installing the express module:

npm install express

Step 2: After that, you can create a folder and add a file, for example, index.js. To run this file you need to run the following command.

node index.js

Project Structure:

The updated dependencies in package.json file will look like:

"dependencies": {
    "express": "^4.18.2",
} 

Example: Below is the code example of the res.status() Method:

const express = require('express');
const app = express();
const PORT = 3000;

// Without middleware
app.get('/user', function (req, res) {
    res.status(200).send("User Page");
})

app.listen(PORT, function (err) {
    if (err) console.log(err);
    console.log("Server listening on PORT", PORT);
});

Steps to run the program:

node index.js

Output:

Server listening on PORT 3000

Browser output: go to http://localhost:3000/user, you will see the following output:

User Page

Example 2: Below is the code example of the res.status() Method:

const express = require('express');
const path = require('path');
const app = express();
const PORT = 3000;

//with middleware
app.use('/', function (req, res, next) {
    res.status(200).send("Status Working");
    next();
});

app.get('/', function (req, res) {
    console.log("Home Page!")
    res.send();
});

app.listen(PORT, function (err) {
    if (err) console.log(err);
    console.log("Server listening on PORT", PORT);
});

Steps to run the program:

node index.js

Console Output: go to http://localhost:3000/, now check your console and you will see the following output:

Server listening on PORT 3000
Home Page!

Browser Output: And you will see the following output on your browser screen:

Status Working

We have a complete list of Express Response methods, properties and events, to check those please go through this Express Response Complete Reference article.