What is Express HTTP context?

This is just an unopinionated, idiomatic ExpressJS implementation of cls-hooked (forked from continuation-local-storage). It’s a great place to store user state, claims from a JWT, request/correlation IDs, and any other request-scoped data. Context is preserved even over async/await (in node 8+).

Why Express is used in Node JS?

Express. js basically helps you manage everything, from routes, to handling requests and views. Redis is a key/value store — commonly used for sessions and caching in Node. js applications.

What is Express server in node JS?

Express is a web application framework for Node. js that allows you to spin up robust APIs and web servers in a much easier and cleaner way. It is a lightweight package that does not obscure the core Node. js features. In this article, you will install and use Express to build a web server.

What is the relationship between node JS and express?

Node. js is a platform for building the i/o applications which are server-side event-driven and made using JavaScript. Express. js is a framework based on Node.

What is async hooks in node JS?

Async Hooks are a core module in Node. js that provides an API to track the lifetime of asynchronous resources in a Node application. An asynchronous resource can be thought of as an object that has an associated callback. This means that backwards-incompatible changes may still be made to future releases of the API.

What is CLS hooked?

CLS is a mechanism that allows the attachment of data to the current asynchronous execution context. It uses async_hooks to keep track of asynchronous context changes and to load and unload the data associated with it.

What is the difference between HTTP and Express in node JS?

HTTP: It is an in-build module which is pre-installed along with NodeJS. It is used to create server and set up connections….Difference between HTTP module and Express.js module:

HTTP	Express
HTTP is not a framework as a whole, rather it is just a module.	Express is a framework as a whole.

What does Express js provide?

Express is a framework that runs within Node. js that provides the means for a developer to create and maintain robust servers. It comes with many built-in features, but also has a gigantic suite of third-party add-ons that developers can use to provide better functionality, increased security, and improved speed.