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@ledgerhq/wallet-api-exchange-module

v0.33.0

Published

Wallet-API Exchange Module for Ledger Live

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Links

Git

Maintainers

phenry-ledgerphenry-ledgersergii-shkolinsergii-shkolingbrahm-ledgergbrahm-ledgerthomas.coudraythomas.coudrayldg-github-cildg-github-civbouzonvbouzonledger-releaserledger-releaser

Keywords

Ledger

Readme

wallet-api-exchange-module

@ledgerhq/wallet-api-exchange-module is a Wallet API CustomModule that exposes swap, sell, and fund exchange flows to Live Apps running inside Ledger Live. It lets dApps initiate exchange transactions through Ledger Live's built-in exchange service without implementing device signing themselves.

What it does

  • Extends CustomModule from @ledgerhq/wallet-api-client with exchange-specific RPC methods
  • Handles the two-phase exchange flow: start* (get a nonce from the device) → complete* (sign and broadcast)
  • Supports swap, sell, and fund exchange types
  • Provides quote fetching (getQuotes) and transaction status polling (getTransactionStatus)
  • Exposes a customSwap method for the device-intent-based swap flow

Key exports / concepts

  • ExchangeModule — the main class; instantiated with a WalletAPIClient and used by Live Apps
  • startSwap / startSell / startFund — begin an exchange, returns a transactionId
  • completeSwap / completeSell / completeFund — finalize with signed payload; returns transactionHash
  • swap — single-call swap using the newer custom.exchange.swap RPC
  • getQuotes / getTransactionStatus — communicate with the Ledger swap backend via the host
  • throwExchangeErrorToLedgerLive — surface exchange errors in the Ledger Live UI

Usage context

Used by Live Apps (dApps embedded in Ledger Live) that need to perform asset exchanges. The Ledger Live host implements the matching RPC handlers; this module is the client-side counterpart bundled with the Live App.