helmet VS Express

Helmet is an npm package that includes middleware to handle and filter out malicious request headers (exploiting XSS vulnerabilities or clickjacking, for example). You can utilize Helmet's default configuration or customize it based on your needs following the instructions provided here.

helmet

By default, NuxtSecurity will set security response headers to match the values recommended by OWASP and a popular Express.js middleware called helmet.

Utilize security headers and middleware to add another layer of security to your Node.js application. Tools like Helmet.js can help you set secure HTTP headers, while middleware can assist in filtering and sanitizing user inputs.

Documentation Link: helmet

Helmet helps “sanitise” the input, which might not have come from the UI directly. Mongoose is what is known as an Object Document Modelling (ODM), which defines a structure (schema) for the stored data, making it easier to manage in Express. These additions have been omitted from our example stack purely to simplify the tutorial and focus on the fundamental tiers and interfaces.

If you can repro the issue with a minimal tsconfig, with nothing but an import statement then it's probably something the maintainers of helmet would like to see. There's also this (recent) issue I saw looking at their queue -- maybe related? https://github.com/helmetjs/helmet/issues/424 ...

// Security // https://helmetjs.github.io/ app.use(helmet())

You can learn more about each header and how to configure them in the Helmet documentation.

These days I only use middleware if it's global and has no outputs. Helmet comes to mind.

Now, we will create API using expressjs. When we created application using --ssr flag, the Angular CLI already took care of installing expressjs for us.

First, we import express. The Express framework allows us to create routes that will respond to webhook POST requests and serve an HTML file when a GET request is made to the root of the site.

Basic Knowledge of Express

Express.js Documentation

In the JavaScript ecosystem, there are guides for enabling SAML-based enterprise single sign-on in AdonisJS, Express.js, Next.js, Remix, and React with an Express.js backend.

Starting off strong with Express.js, the cool kid on the block for building web apps. It's lightweight, flexible, and doesn't throw a tantrum when you ask it to scale. With Express, you can handle HTTP requests like a pro, play around with middleware, set up routes without breaking a sweat, and render views that make your app look stunning. Big names like Netflix and Uber are already on board, and if it's good enough for them, it's definitely worth a peek.

express - one of the most popular middleware tools, lightweight and easy to learn. docs

Now we can install both Express and Socket.io libraries:

app.listen(3000); ``` Now you can run your server by executing `node index.js`. Your web application will be accessible at http://localhost:3000/, where you'll see "Hello, world!" displayed in your browser. Congratulations! 🎉 You've successfully set up basic routing with Express.js! This guide covered only the tip of the iceberg when it comes to utilizing Express.js features. Explore its extensive documentation (https://expressjs.com/) to discover more possibilities. Remember, with Express.js, you have the power to build efficient and scalable web applications. Happy coding!

Converting a large Express.js application from JavaScript to TypeScript can be a challenging task. For many applications, this represents a significant portion of their technical debt, as the process may span many days, if not months, and new changes are typically not allowed during the conversion.