Function: assertPaymasterTransactionSafety()

assertPaymasterTransactionSafety(preparedTransaction, calls, paymasterDetails, chainId, maxFeeInGasToken?): void

Defined in: src/utils/paymaster.ts:239

Asserts that a paymaster-prepared transaction is safe to sign: the typed-data domain is bound to the account's own chain, and — for non-sponsored transactions — the calls and the appended gas-token transfer match what the user actually requested.

Parameters

preparedTransaction

PreparedTransaction

The transaction returned by the paymaster.

calls

Call[]

The calls originally requested by the user.

paymasterDetails

PaymasterDetails

The fee mode and related paymaster details.

chainId

"0x534e5f4d41494e" | "0x534e5f5345504f4c4941"

The chain id of the account's own provider.

maxFeeInGasToken?

BigNumberish

Optional user-approved ceiling on the gas-token fee.

Returns

void

Throws

Throws an error if any of the above safety properties do not hold.

Example

assertPaymasterTransactionSafety(
  preparedTransaction,
  calls,
  { feeMode: { mode: 'default', gasToken: strkAddress } },
  constants.StarknetChainId.SN_SEPOLIA
);
// does not throw if preparedTransaction is exactly what was requested