safewise-link

Library for low-level communication with SafeWISE.

Intended as a "building block" for other packages - it is used in safewise-jsapi.

You probably don't want to use this package directly. For communication with SafeWISE with a more high-level API, use safewise-jsapi.

How to use

Use like this:

var Link = require('@coinwisebr/safewise-link');
var LowlevelTransport = Link.Lowlevel;
var NodeHidPlugin = Link.NodeHid;

var link = new LowlevelTransport(new NodeHidPlugin());

var config = fetch('https://wallet.safewise.io/data/config_signed.bin').then(function (response) {
  if (response.ok) {
    return response.text();
  } else {
    throw new Error(`Fetch error ${response.status}`);
  }
});

return link.init().then(function () { 
  return config.then(function (configData) {
    return link.configure(configData);
  });
}).then(function () {
  return link.enumerate();
}).then(function (devices) {
  return link.acquire(devices[0].path);
}).then(function (session) {
  return link.call(session, 'GetFeatures', {}).then(function (features) {
    console.log(features);
    return link.release(session);
  });
}).catch(function (error) {
  console.error(error);
});

Notes

Source is annotated with Flow types, so it's more obvious what is going on from source code.

Flow

If you want to use flow for typechecking, just include the file as normally, it will automatically use the included flow file. However, you need to add flowtype/*.js to your [libs] (or copy it yourself from flow-typed repository), and probably libs from flowconfig.