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crc32-stream

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crc32-stream

a streaming CRC32 checksumer

  • 5.0.1
  • Source
  • npm
  • Socket score

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What is crc32-stream?

The crc32-stream npm package is designed for generating CRC32 checksums from streams of data. It is particularly useful for validating the integrity of data being transferred or stored. The package provides a way to compute CRC32 checksums efficiently on-the-fly for both streams of data and individual files.

What are crc32-stream's main functionalities?

CRC32 Checksum for Streams

This feature allows you to create a CRC32 checksum for data streams. The code sample demonstrates how to pipe a file stream through the CRC32Stream to compute its checksum.

const {CRC32Stream} = require('crc32-stream');
const fs = require('fs');

const source = fs.createReadStream('path/to/file');
const crc32Stream = new CRC32Stream();

source.pipe(crc32Stream).on('finish', function() {
  console.log('CRC32 Checksum:', crc32Stream.digest().toString(16));
});

CRC32 Checksum for Files

This feature demonstrates how to compute and append a CRC32 checksum for files. It shows the process of reading a file, computing the checksum as the file is being processed, and then writing the output to another file.

const {CRC32Stream} = require('crc32-stream');
const fs = require('fs');

const crc32Stream = new CRC32Stream();
const output = fs.createWriteStream('output.file');

fs.createReadStream('input.file')
  .pipe(crc32Stream)
  .pipe(output)
  .on('finish', function() {
    console.log('File processed with CRC32 Checksum:', crc32Stream.digest().toString(16));
  });

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Package last updated on 29 Feb 2024

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