Create a Transform Stream in Node.js

A transform stream is a type of duplex stream that has the ability to modify the data as it passes through. Transform streams are commonly used for tasks such as data compression, encryption, or formatting.

They are usually connected to a readable and a writable stream through the pipe() method.

readable.pipe(transform).pipe(writable);

To create a transform stream, you can create a class that inherits from the Transform class and override the _transform() method:

const { Transform } = require('stream');class TransformStream extends Transform {  constructor(options) {    super(options);  }  _transform(chunk, encoding, callback) {    // Transform the data chunk    // Add the chunk to the read queue    this.push(chunk);    // Execute the callback function