Solana Redeem

Converts BTC.b tokens on Solana into native Bitcoin by burning the wrapped asset and dispatching a cross-chain message.

Key Differences from EVM

Unlike EVM-based redemptions, the Solana process uses the Asset Router program with General Message Passing (GMP) rather than smart contracts. The operation reaches a CONFIRMING status rather than COMPLETED because Bitcoin-side asset release occurs asynchronously and cannot be directly tracked by the SDK.

Basic Usage

import { createLombardSDK, Chain, AssetId } from '@lombard.finance/sdk';
 
const config = createConfig({
  env: Env.testnet,
  providers: {
    solana: () => window.solana,
  },
});
 
const sdk = createLombardSDK(config);
 
const redeem = sdk.chain.solana.redeem({
  sourceChain: Chain.SOLANA_DEVNET,
  destChain: Chain.BITCOIN_SIGNET,
  assetIn: AssetId.BTCb,
  assetOut: AssetId.BTC,
});
 
await redeem.prepare({
  amount: '0.01',       // Decimal string (SDK converts to satoshis)
  recipient: 'bc1q...',  // Bitcoin address
});
 
const result = await redeem.execute();

Amount Format

The high-level SDK action accepts amounts as decimal strings (e.g., "0.01" BTC), while the low-level redeemForBtc function requires satoshi amounts as integer strings. The SDK automatically performs this conversion.

Current Availability

Testnet only: SOLANA_DEVNET to BITCOIN_SIGNET (stage and dev environments).