hamt-sharding

JavaScript implementation of sharding using hash array mapped tries

About

A Hash Mapped Trie implementation for JavaScript.

This is used by @helia/unixfs for it's HAMT-sharded directory implementation.

Example

import { createHAMT } from 'hamt-sharding'
import crypto from 'crypto-promise'

// decide how to hash buffers made from keys, can return a Promise
const hashFn = async (buf) => {
  return crypto
    .createHash('sha256')
    .update(buf)
    .digest()
}

const bucket = createHAMT({
  hashFn: hashFn
})

await bucket.put('key', 'value')

const output = await bucket.get('key')
// output === 'value'
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Install

$ npm i hamt-sharding
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Browser <script> tag

Loading this module through a script tag will make it's exports available as HamtSharding in the global namespace.

<script src="https://unpkg.com/hamt-sharding/dist/index.min.js"></script>
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API Docs

• https://ipfs-shipyard.github.io/js-hamt-sharding

License

Licensed under either of

• Apache 2.0, (LICENSE-APACHE / http://www.apache.org/licenses/LICENSE-2.0)
• MIT (LICENSE-MIT / http://opensource.org/licenses/MIT)

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.