@cosmjs/ledger-amino

npm install @cosmjs/ledger-amino

interface LedgerConnectorOptions {
  readonly hdPaths?: readonly HdPath[];
  readonly prefix?: string;
  readonly testModeAllowed?: boolean;
  readonly ledgerAppName?: string;
  readonly minLedgerAppVersion?: string;
}

import TransportWebUSB from "@ledgerhq/hw-transport-webusb";
import { LedgerSigner } from "@cosmjs/ledger-amino";
import { makeCosmoshubPath } from "@cosmjs/amino";
import { SigningStargateClient, GasPrice } from "@cosmjs/stargate";

const transport = await TransportWebUSB.create();
const signer = new LedgerSigner(transport, {
  hdPaths: [makeCosmoshubPath(0)],
  prefix: "cosmos",
});

const [{ address }] = await signer.getAccounts();

const client = await SigningStargateClient.connectWithSigner(
  "https://rpc.my-chain.network",
  signer,
  { gasPrice: GasPrice.fromString("0.025uatom") },
);

const result = await client.sendTokens(
  address,
  "cosmos1recipient...",
  [{ denom: "uatom", amount: "1000000" }],
  "auto",
);

interface AddressAndPubkey {
  readonly address: string;
  readonly pubkey: Secp256k1Pubkey;
}