viem/zksync/utils/isEip712Transaction.ts

TypeScript Interface for Ethereum

import type { ExactPartial, OneOf } from '../../types/utils.js'
import type {
  ZksyncTransactionRequest,
  ZksyncTransactionSerializable,
} from '../types/transaction.js'

export function isEIP712Transaction(
  transaction: ExactPartial<
    OneOf<ZksyncTransactionRequest | ZksyncTransactionSerializable>
  >,
) {
  if (transaction.type === 'eip712') return true
  if (
    ('customSignature' in transaction && transaction.customSignature) ||
    ('paymaster' in transaction && transaction.paymaster) ||
    ('paymasterInput' in transaction && transaction.paymasterInput) ||
    ('gasPerPubdata' in transaction &&
      typeof transaction.gasPerPubdata === 'bigint') ||
    ('factoryDeps' in transaction && transaction.factoryDeps)
  )
    return true
  return false
}