signTransaction

signTransaction<T>(keyPairs, transaction): Promise<NominalType<"transactionSignedness", "fullySigned"> & Readonly<{ messageBytes: TransactionMessageBytes; signatures: SignaturesMap; }> & T>

Given an array of CryptoKey objects which are private keys pertaining to addresses that are required to sign a transaction, this method will return a new signed transaction of type FullySignedTransaction.

This function will throw unless the resulting transaction is fully signed.

Type Parameters

Parameters

Returns

Promise<NominalType<"transactionSignedness", "fullySigned"> & Readonly<{ messageBytes: TransactionMessageBytes; signatures: SignaturesMap; }> & T>

Example

import { generateKeyPair } from '@solana/keys';
import { signTransaction } from '@solana/transactions';
 
const signedTransaction = await signTransaction([myPrivateKey], tx);

See

partiallySignTransaction if you want to sign the transaction without asserting that the resulting transaction is fully signed.