Refund EVM HTLC

const swap = await client.getSwap(swapId);
console.log("Status:", swap.status);
// ... "expired"
console.log("Direction:", swap.direction);
// ... "evm_to_lightning"

// Collaborative refund: the SDK signs an EIP-712 message and the
// server cosigns + submits the on-chain transaction. No gas needed.
// The locked WBTC/tBTC is returned directly to the depositor.
const result = await client.collabRefundEvmSwap(swapId);

console.log("Refund TX:", result.txHash);
// ... "0xabc123..."
console.log("Message:", result.message);
// ... "Collaborative refund submitted successfully"

import { type EvmSigner } from "@satora/swap";

// Timeout-based refund: does NOT require server cooperation.
// The user must wait for the HTLC timelock to expire, then submit
// the refund transaction themselves with their EVM wallet.
//
// Build an EvmSigner from your wallet (see funding example for details)
declare const signer: EvmSigner; // your wallet - see EvmSigner docs

// refundEvmWithSigner handles everything: reads the locked amount off the
// funding tx's receipt (your waitForReceipt must return its logs), asks the
// server for calldata only if that fails, sends the transaction, and waits
// for the receipt.
// The locked WBTC/tBTC is returned directly to the depositor.
const { txHash } = await client.refundEvmWithSigner(swapId, signer);

console.log("Refund TX:", txHash);
// ... "0xabc123..."