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signPsbts

Signs multiple Partially Signed Bitcoin Transactions (PSBTs) in a single operation. This is useful for batch operations or when working with multiple transactions that need to be signed together.

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Usage

import { signPsbts, isBitcoinWalletAccount } from "@dynamic-labs-sdk/bitcoin";
import { getPrimaryWalletAccount } from "@dynamic-labs-sdk/client";

const walletAccount = getPrimaryWalletAccount();

if (walletAccount && isBitcoinWalletAccount(walletAccount)) {
  const { signedPsbts } = await signPsbts({
    walletAccount,
    requests: [
      {
        unsignedPsbtBase64: "cHNidP8BAH...",
        allowedSighash: [1],
        signature: [
          {
            address: walletAccount.address,
            signingIndexes: [0],
          },
        ],
      },
      {
        unsignedPsbtBase64: "cHNidP8BAI...",
        allowedSighash: [1],
        signature: [
          {
            address: walletAccount.address,
            signingIndexes: [0, 1],
          },
        ],
      },
    ],
  });

  console.log("Signed PSBTs:", signedPsbts);
}

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Parameters

ParameterTypeDescription
requestsBitcoinSignPsbtRequest[]Array of PSBT signing requests
requests[].unsignedPsbtBase64stringThe unsigned PSBT encoded in Base64
requests[].allowedSighashnumber[]Array of allowed signature hash types
requests[].signatureArray (optional)Array of signature configuration objects
walletAccountBitcoinWalletAccountThe wallet account to sign with
clientDynamicClient (optional)The Dynamic client instance. Only required when using multiple clients.

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Returns

Promise<{ signedPsbts: string[] }> - A promise that resolves to an object containing an array of signed PSBTs in Base64 format.

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Errors

ErrorDescription
NotBitcoinProviderErrorThrown if the wallet account’s provider is not a Bitcoin provider