What is Piping in Streams?

1. Definition

Piping in Node.js streams is a method used to connect the output of one stream directly to the input of another stream. It allows data to flow automatically from one place to another.

2. Why We Use Piping

Efficient data transfer
Reduces memory usage
Handles large files easily
Automatic data flow between streams

3. How Piping Works

Readable stream provides data
Writable stream receives data
pipe() connects both streams

4. Example

const fs = require("fs");

const readStream = fs.createReadStream("input.txt");
const writeStream = fs.createWriteStream("output.txt");

// Pipe data from input to output
readStream.pipe(writeStream);

5. Data Flow

input.txt  --->  Readable Stream  --->  pipe()  --->  Writable Stream  --->  output.txt

6. Advantages

Efficient for large data handling
Reduces manual coding
Improves performance
Automatic flow control