npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

merkle-btree

v1.0.24

Published

Content-addressed b-tree

Downloads

48

Readme

merkle-btree

Content-addressed b-tree

NPM David Travis

Description

Generic javascript library for writing and reading B-trees on content hash addressed storages. Includes storage adapters for IPFS nodes (read & write) and gateways (read only).

Based on https://github.com/ianopolous/merkle-btree.

Installation

Install via yarn

yarn add merkle-btree (--dev)

or npm

npm install merkle-btree (--save-dev)

If you don't use a package manager, you can access merkle-btree via unpkg (CDN), download the source, or point your package manager to the url.

merkle-btree is compiled as a collection of CommonJS modules & ES2015 modules for bundlers that support the jsnext:main or module field in package.json (Rollup, Webpack 2)

The merkle-btree package includes precompiled production and development UMD builds in the dist folder. They can be used directly without a bundler and are thus compatible with many popular JavaScript module loaders and environments. You can drop a UMD build as a <script> tag on your page. The UMD builds make merkle-btree available as a window.merkleBtree global variable.

Usage


var ipfsAPI = require('ipfs-api');
var ipfs = ipfsAPI('localhost', '5001', {protocol: 'http'});
var lib = require('merkle-btree');

// Store entries into a merkle tree on IPFS
var storage = new lib.IPFSStorage(ipfs);
var tree = new lib.MerkleBTree(storage);
tree.put('key', 'value').then(console.log); // outputs tree IPFS file hash after inserting key
tree.get('key').then(console.log); // 'value'
tree.searchText('k').then(console.log); // [ { key: 'key', value: 'value' } ]

// Read-only storage using an IPFS gateway - good for serverless browser apps
var storage2 = new lib.IPFSGatewayStorage('https://identi.fi');
lib.MerkleBTree.getByHash('QmWXBTuicL68jxutngJhFjAW7obuS38Yi8H3bNNHUnrB1V/identities')
.then(function(tree2) {
  return tree2.get('[email protected]');
})
.then(console.log);

configuration

You can pass in extra options as a configuration object (➕ required, ➖ optional, ✏️ default).


import merkleBtree from 'merkle-btree';

property ( type ) ✏️ default 📝 description ❗️ warning ℹ️ info 💡 example

methods

#name


merkleBtree

Examples

See example folder or the runkit example.

Identi.fi identity and message indexes are built on the library.

License

The code is available under the MIT license.

Contributing

We are open to contributions, see CONTRIBUTING.md for more info.

Misc

This module was created using generator-module-boilerplate.