Create JavaScript library/SDK that wraps the Kchannels API

[maurycyp]

We are looking for help (from an experienced JavaScript dev) with a standalone JS library/SDK that wraps the Kchannels API. We have working JS code that already contains a lot of the requested functionality to help you with this effort.

The API is located at https://docs.kchannels.io/docs/api (all of the subsections of the API docs should be part of the library).

The API is mostly JSON-RPC-based, although some parts of it are REST-style. There are also 2 WebSocket endpoints.

IMPORTANT: The library must perform all the client-side validation (checking hashes, detecting channel inconsistencies) to protect the client whenever required (e.g. when data is returned in a response).

The library should

• use modern, idiomatic JavaScript
• be of high quality and use good coding practices (in the spirit of Code Complete -- good variable names, documentation, etc.)
• contain unit tests (using mocking where appropriate) with good coverage
• be structured in a way that lets it be uploaded to NPM
• use a permissive, open-source license
• come with a README that explains how to get started quickly
• be publicly available on GitHub

Additional pointers:

• The library should support all the ways that keypairs are commonly represented in the Ethereum ecosystem (as files, strings, etc).
• The library should cleanly, idiomatically present the WebSocket information to the client.

We are open to discussing whether you continue to maintain the library or hand it off to us.