getSerializedTransactionType

Determines the transaction type from a serialized transaction hex string by examining the type prefix.

Import

import "github.com/ChefBingbong/viem-go/utils/transaction"

Usage

import "github.com/ChefBingbong/viem-go/utils/transaction"

// Get type from serialized transaction
txType, err := transaction.GetSerializedTransactionType("0x02ef0182031184773594008477359400809470997970c51812dc3a010c7d01b50e0d17dc79c8880de0b6b3a764000080c0")
if err != nil {
  log.Fatal(err)
}
fmt.Printf("Type: %s
", txType)
// Type: eip1559

Returns

• Type: (transaction.TransactionType, error)

The transaction type: "legacy", "eip2930", "eip1559", "eip4844", or "eip7702".

Parameters

serializedTransaction (required)

• Type: string

The serialized transaction hex string.

txType, _ := transaction.GetSerializedTransactionType("0x02ef0182031184773594008477359400809470997970c51812dc3a010c7d01b50e0d17dc79c8880de0b6b3a764000080c0")

Type Detection

The transaction type is determined from the first byte(s) of the serialized transaction:

• Legacy: No type prefix (starts with RLP data)
• EIP-2930: 0x01 prefix
• EIP-1559: 0x02 prefix
• EIP-4844: 0x03 prefix
• EIP-7702: 0x04 prefix

Notes

• This function only examines the type prefix, not the transaction fields
• For determining type from a transaction object, use GetTransactionType instead
• Returns an error if the serialized transaction format is invalid