Node.js Readable Streams Lab

Medium
27.3% Acceptance

In this lab, we will explore the fundamentals of readable streams in Node.js. You will create a simple text file, implement a readable stream to read data from the file, handle backpressure, and work with events like 'data', 'end', and 'error'. These tasks will help you understand the essential working principles of readable streams in Node.js.

Note: This lab assumes that you have a basic understanding of Node.js and the concept of streams. We will be using ESM import/export syntax.

Readable streams are a powerful feature in Node.js that allows you to effortlessly manage data flow from a source (like a file) to a sink (like a process). They are especially useful in cases where you need to process large amounts of data or when you want to consume data at your application's desired pace.

Here are the main concepts you need to understand:

  • Readable Streams: A source from which data is read.
  • Backpressure: A mechanism to slow down the data flow in the stream when the consumer cannot process it at the pace it's being produced.
  • Events: Readable streams are event emitters that emit several events like 'data', 'end', and 'error'.

For more information, we recommend checking out the official Node.js documentation on streams.