Transforming Streams
Transform streams enable you to modify or transform data as it passes through the stream. You can create custom transform streams by extending the Transform
class from the stream
module and implementing the _transform()
method.
const { Transform } = require('stream');
class UpperCaseTransform extends Transform {
_transform(chunk, encoding, callback) {
this.push(chunk.toString().toUpperCase());
callback();
}
}
const upperCaseTransform = new UpperCaseTransform();
process.stdin.pipe(upperCaseTransform).pipe(process.stdout);
How to handle streaming data in Node ?
Streaming data in NodeJS involves processing data in chunks as it becomes available, rather than waiting for the entire dataset to be loaded into memory. This approach is particularly useful for handling large files, network data, or real-time data sources. NodeJS provides a powerful set of streaming APIs that allow developers to efficiently handle streaming data. Here’s how you can handle streaming data in NodeJS:
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