Introduction To Helmet JS

Helmet JS Helps Secure Express Apps By Setting HTTP Headers.

It’s A Middleware You Use In Node And Express Apps.

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Why Use Helmet In Web Apps?

Helmet Prevents Common Attacks Like XSS, Clickjacking, MIME Sniffing.

Security Best Practice For Any Express Based Application.

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Installing Helmet In Your Project

Use NPM Command To Install Helmet Package In Node Project.

npm install helmet Inside Your Project Directory.

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Basic Usage Of Helmet Middleware

Import Helmet And Add It As Middleware In Your App. This will add Security Headers Automatically To Every Response.

const helmet = require("helmet"); app.use(helmet());

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What Helmet Actually Does Behind?

It Adds Headers Like Content-Security-Policy, X-DNS-Prefetch-Control.

Each Header Protects Against Specific Web-Based Vulnerabilities.

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Customize Helmet For Your Needs

You Can Enable Or Disable Specific Headers With Options.

app.use(  helmet({    contentSecurityPolicy: false,  }) );

Control Helmet’s Behavior For Your App's Unique Requirements.

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