Node.js Best Practices — Security and Structure

Node.js Best Practices — Security and Structure

Many things to think about. Like any kind of apps, JavaScript apps also have to be written well. Otherwise, we run into all kinds of issues later on. In this article, we’ll look at some best practices we should follow when writing Node apps. Use Helmet if we’re Writing a Web App We should use Helmet if we’re writing a web app.

Like any kind of apps, JavaScript apps also have to be written well.

Otherwise, we run into all kinds of issues later on.

In this article, we’ll look at some best practices we should follow when writing Node apps.

Use Helmet if we’re Writing a Web App

We should use Helmet if we’re writing a web app.

It does a few things, including:

  • add XSS protection
  • prevent clickjacking with X-Frame-Options
  • enforcing all connection to be HTTPS
  • setting Context-Security-Policy header
  • disable X-Powered-By response header so attackers can’t narrow down the libraries we’re using to write the app.

Helmet will set sensible defaults for all those options.

We can install it by running:

npm install helmet

In our Express app, we can use the middleware by writing:

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

Monitor our Applications

If we’re running our app, then we need to monitor it.

Users aren’t happy if our app goes down and there’s no quick resolution.

Therefore, we need to monitor our app and alert everyone so that we can get it running again quickly.

For instance, KeyMetrics.io integrates with PM2 to check for the app’s health.

A dashboard is also provided to show us when it’s up or not.

Latency and events can be checked.

javascript web-development technology software-development programming

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