InteractiveFrameworks

Express

Build a web API for Express in your browser: routes, request bodies, middleware, routers, requests and responses, and errors, on Express 5 itself, the framework most Node servers run on and the one NestJS uses underneath, graded by calling your routes.

courses
1
lessons
6
Start with Basics: First steps

Courses

Basics

beginner6 lessons · 3 hours

Everything an Express app is made of, on one growing cats API: routes and the handlers that answer through res, request bodies, middleware that runs around them, routers that split an app into parts, the request and response in detail, and errors. Express 5, the version current since 2024.

Routes and handlers

  1. 1First steps
  2. 2Routes and bodies

Requests, responses and errors

  1. 5Request and response
  2. 6Errors