@web3-storage/car-block-validator

Validate car block bytes

1.2.0
latest
Source
npm

Version published: 2 years ago

Weekly downloads: 2.9K; decreased by-13.69%

Maintainers: 7

Weekly downloads

Created: 2 years ago

Source

car-block-validator

Validate car block bytes with web3.storage supported codecs

car-block-validator validates @ipld/car blocks for the given hashers:

hashes	import	repo
`sha2-256`, `sha2-512`	`multiformats/hashes/sha2`	multiformats/js-multiformats
`sha3-224`, `sha3-256`, `sha3-384`,`sha3-512`, `shake-128`, `shake-256`, `keccak-224`, `keccak-256`, `keccak-384`, `keccak-512`	`@multiformats/sha3`	multiformats/js-sha3
`identity`	`multiformats/hashes/identity`	multiformats/js-multiformats
`murmur3-128`, `murmur3-32`	`@multiformats/murmur3`	multiformats/js-murmur3
`blake2b-`, `blake2s-`	`@multiformats/blake2`	multiformats/js-blake2

Install

# install it as a dependency
$ npm i @web3-storage/car-block-validator

Usage

import { validateBlock } from '@web3-storage/car-block-validator'

// Read CAR file as wished
// const inStream = fs.createReadStream(process.argv[2])
// const reader = await CarBlockIterator.fromIterable(inStream)

for await (const block of reader) {
  await validateBlock(block)
  // throws if not valid, either unknown codec or not valid bytes
}

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Package last updated on 09 May 2023

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