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The useSignTransaction hook signs a raw transaction using a specified wallet. The transaction must be RLP-encoded and base64-encoded before passing it to the hook. For higher-level EVM transaction support, use the @getpara/viem-v2-integration package.

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Import

import { useSignTransaction } from "@getpara/react-native-wallet";

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Usage

import { useSignTransaction, useWallet } from "@getpara/react-native-wallet";
import { Button } from "react-native";

function SignTxButton({ rlpEncodedTxBase64 }: { rlpEncodedTxBase64: string }) {
  const { data: wallet } = useWallet();
  const { signTransactionAsync, isPending } = useSignTransaction();

  const handleSign = async () => {
    if (!wallet?.id) return;
    try {
      const result = await signTransactionAsync({
        walletId: wallet.id,
        rlpEncodedTxBase64,
        chainId: "1",
      });
      console.log("Signed tx:", result?.signature);
    } catch (err) {
      console.error(err);
    }
  };

  return <Button title={isPending ? "Signing..." : "Sign Transaction"} onPress={handleSign} disabled={isPending || !wallet?.id} />;
}