National Pest Management

    This package has been deprecated

    Author message:

    This package has been renamed to @cosmjs/ledger-amino

    TypeScript icon, indicating that this package has built-in type declarations

    0.23.2 • Public • Published


    npm version

    Supported platforms

    This library must be provided with a Ledger transport, and has been tested with appropriate transports for Node.js as well as certain browsers. In our demo code we use @ledgerhq/hw-transport-node-hid to connect to Ledger devices from Node.js. We use the @ledgerhq/hw-transport-webusb library to connect to Ledger devices from the browser via USB. You can check the support status of this library here.

    Running the demo


    Connect the Ledger device via USB, open the Cosmos app, then run the demo (this will also build the package):

    yarn demo-node


    Build the package for web:

    yarn pack-web

    Host the launchpad-ledger package directory, for example using Python 3:

    python3 -m http.server

    Visit the demo page in a browser, for example if using the Python 3 option: http://localhost:8000/demo.

    Then follow the instructions on that page.

    Runnng tests

    The tests in this package require a Ledger device initialized with the mnemonic from scripts/wasmd/ (see "Ledger: accounts for Ledger based demos and tests") with an installed "Cosmos (ATOM)" app. The device must be connected via USB, unlocked and the Cosmos app must be opened. The tests require the user to manually approve transactions. Start a local wasmd blockchain as described in scripts/wasmd/ and execute:

    export LEDGER_ENABLED=1
    export WASMD_ENABLED=1
    yarn test


    This package is part of the cosmjs repository, licensed under the Apache License 2.0 (see NOTICE and LICENSE).




    npm i @cosmjs/launchpad-ledger

    DownloadsWeekly Downloads






    Unpacked Size

    43.6 kB

    Total Files


    Last publish


    • webmaster128
    • ethanfrey