7.0.1 • Published 1 year ago

crc32-stream v7.0.1

Weekly downloads
3,636,247
License
MIT
Repository
github
Last release
1 year ago

CRC32 Stream

crc32-stream is a streaming CRC32 checksumer. It uses the crc module behind the scenes to reliably handle binary data and fancy character sets. Data is passed through untouched.

Install

npm install crc32-stream --save

You can also use npm install https://github.com/archiverjs/node-crc32-stream/archive/master.tar.gz to test upcoming versions.

Usage

CRC32Stream

Inherits Transform Stream options and methods.

import { CRC32Stream } from "crc32-stream";

const source = fs.createReadStream("file.txt");
const checksum = new CRC32Stream();

checksum.on("end", function (err) {
  // do something with checksum.digest() here
});

// either pipe it
source.pipe(checksum);

// or write it
checksum.write("string");
checksum.end();

DeflateCRC32Stream

Inherits zlib.DeflateRaw options and methods.

import { DeflateCRC32Stream } from "crc32-stream";

const source = fs.createReadStream("file.txt");
const checksum = new DeflateCRC32Stream();

checksum.on("end", function (err) {
  // do something with checksum.digest() here
});

// either pipe it
source.pipe(checksum);

// or write it
checksum.write("string");
checksum.end();

Instance API

digest()

Returns the checksum digest in unsigned form.

hex()

Returns the hexadecimal representation of the checksum digest. (ie E81722F0)

size(compressed)

Returns the raw size/length of passed-through data.

If compressed is true, it returns compressed length instead. (DeflateCRC32Stream)

Things of Interest

7.0.0

1 year ago

7.0.1

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5.0.1

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6.0.0

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5.0.0

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4.0.3

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4.0.1

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4.0.0

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3.0.1

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3.0.0

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2.0.0

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1.0.1

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1.0.0

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0.1.2

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0.1.1

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0.1.0

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