Package Exports

ledger-cosmos-js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (ledger-cosmos-js) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

ledger-cosmos-js

This package provides a basic client library to communicate with a Tendermint/Cosmos App running in a Ledger Nano S

There are two running modes:

HID: Direct access via HID. This can be used from a backend, node.js, etc.
U2F: This allows access to the device from the browser (client side)

Testing

Install all dependencies by running

npm install

There are a few useful scripts:

npm test: Will run HID tests
npm browserify: Will generate js files that are necessary for U2F/browser integration
npm browserify-test: Will generate js files that are necessary for browser testing. After executing this script. You can access tests/browser/index.html to run browser tests.

Warning: You need to setup a webserver and point it to index.html. U2F communication requires an https connection.

How to run browser tests

First you need to deploy the javascript files. Run the following:

npm run browserify
npm run browserify-test

now go to the test directory and run caddy

cd tests/browser
caddy

you should see something like:

Activating privacy features... done.
https://localhost:2020
WARNING: File descriptor limit 1024 is too low for production servers. At least 8192 is recommended. Fix with `ulimit -n 8192`.

Open your browser at https://localhost:2020 and you can now run the test