signAndSendTransaction()

Overview

Signs and broadcasts a transaction using the specified wallet account.

Behavior differs depending on the type of wallet:

• Connected wallets
• Ethereum: delegates to the wallet’s native signAndSendTransaction method.
• Does not require an rpcUrl (the wallet handles broadcasting).
• Solana: signs the transaction locally with the connected wallet, but requires an rpcUrl to broadcast it.
• Other chains: not supported; will throw an error.

• Embedded wallets
• Signs the transaction using the Turnkey API.
• Requires an rpcUrl to broadcast the signed transaction, since Turnkey does not broadcast directly.
• Broadcasts the transaction using a JSON-RPC client and returns the resulting transaction hash/signature.
• Optionally allows stamping with a specific stamper (StamperType.Passkey, StamperType.ApiKey, or StamperType.Wallet).

Package: core

Defined in: clients/core.ts:2404

Parameters

params · SignAndSendTransactionParams · required

Show params details

params.organizationId

string

Only for Turnkey embedded wallets: organization ID to target (defaults to the session’s organization ID).

params.rpcUrl

string

JSON-RPC endpoint used for broadcasting (required for Solana connected wallets and all embedded wallets).

params.stampWith

StamperType

optional stamper to use when signing (StamperType.Passkey, StamperType.ApiKey, or StamperType.Wallet).

params.transactionType

v1TransactionType

required

type of transaction (e.g., "TRANSACTION_TYPE_SOLANA", "TRANSACTION_TYPE_ETHEREUM").

params.unsignedTransaction

string

required

unsigned transaction data as a serialized string in the canonical encoding for the given transactionType.

params.walletAccount

WalletAccount

required

wallet account to use for signing and broadcasting.

Response

A successful response returns the following fields:

returns · string · required

A promise that resolves to a transaction signature or hash.