A powerful and flexible Node.js library for processing streams in fixed-size blocks. This library extends Node's Transform stream to provide block-based data processing with customizable options for handling partial blocks, applying padding, and transforming block content.
- Process streaming data in configurable fixed-size blocks
- Control handling of partial blocks at stream end (emit as-is or pad to full size)
- Apply custom padding for incomplete blocks (single byte value or buffer pattern)
- Execute callbacks for each completed block
- Implement custom block transformations
- Manage memory usage with block buffering limits
- Safe or fast buffer allocation options
- Processing fixed-record format files
- Block-based encryption/decryption
- Audio/video frame processing
- Network protocol implementations
- Disk I/O optimization
- Performance-critical data processing pipelines
npm install stream-blockifyimport { StreamBlockify } from 'stream-blockify';
import { createReadStream, createWriteStream } from 'node:fs';
// Create a transform stream that processes data in 1024-byte blocks
const blockify = new StreamBlockify({
blockSize: 1024,
emitPartial: true
});
// Pipe a file through the transform stream
createReadStream('input.dat')
.pipe(blockify)
.pipe(createWriteStream('output.dat'));For complete documentation, see the Documentation.
MIT © Ahmed Eltaher