Decoding data on safe transactions on ethereum using web3.py

The ecosystem of decentralized financing of Ethereum (Defi) is largely relied on intelligent contracts to facilitate safe and transparent transactions. One of the most common cases of use is Multisig wallet, which allows multiple users to share one wallet and authorize transactions without having to manually approve each individual transaction.

If a safe transaction occurs, it includes sending funds from one address to another using a multisig wallet. However, due to the decentralized nature of the Ethereum blockchain, the transactions themselves cannot be directly decode or extract from the contractual ABI (Abstract Syntax Tree) without proper understanding and tools.

In this article, we will examine how to decode safe transactions on Ethereum using a web3py, a Python library that provides a simple and intuitive API for interaction with the Ethereum blockchain.

What are data on safe transactions?

Data on a safe transaction refer to the metadata associated with each transaction. On Ethereum, the ABI (Abstract syntax tree) Treaty defines the structure and behavior of an intelligent contract. However, when the Multisig wallet is sent by funds from one address to another, the transactions’ data itself does not contain the necessary information for their direct decoding.

Understanding data on safe transactions

Safe transactions data usually contain fields such as:

• txhash: hexadecimal hash transaction

• Blocknumber: block number where the transaction occurred

• From ': Sender address

• To: the recipient's address

• Value: Etter height

• Gasprice: The price of the gas used to perform the transaction

Web3py data and safe transactions

We will use API Web3PI to interact with blockchain ethereum to decode safe transactions. First, make sure you have the latest web3py version installed:

`Bash

PIP Install Web3

`

Now we create a simple script that extracts the “TXHash" field from a safe transaction:

Python

From Web3 Import Web3

Initialize Web3 instance using your Ethereum wallet provider (eg infura, myetherwallet)

W3 = Web3 (Web3.httpprovider (‘

Define data on safe transactions

tx_hash = ‘0x6a761202’

replace the real Txhash field

try:

Get an object of transaction from blockchain

tx = w3.eth.gettransaction (TX_Hash)

Print extracted transactions data

Print (‘transaction data:’)

Print (F’TxHash: {tx_hash} ‘)

Print (F’BlockNumber: {tx.blocknumber} ‘)

Print (F’sender: {tx.from} ‘)

Print (f’receiver: {tx.to} ‘)

Print (F’money Sent: {tx.value} Ether ‘)

Print (F’Gas Price: $ {tx.gasprice} ‘)

In addition to the exception as E:

Print (F’error: {e} ‘)

`

In this example, we use the et.gettransaction method to obtain an object of a safe transaction transaction. Then we access different fields in transaction data.

Extracting long hexagonal chains

If you have a long hexagonal chain starting with 0x6A761202, you can extract Web3Py ‘Fromhex:

Python

Long_hex_string = ‘0x6A761202’

replacement by real hex chain

try:

tx_data = w3.eth.Fromhex (long_hex_string)

Print (TX_DATA)

Print extracted transactions data

In addition to the exception as E:

Print (F’error: {e} ‘)

`

This gives you the “TXHash`” field, which you can then use to decodate other safe transactions.

Conclusion

In this article, we have demonstrated how to use web3Ps to extract and decode safe transactions on Ethereum. By using the Library’s API interface and understanding intelligent contractor data structures, you can effectively decode the complex transaction metadata without requiring manual approval or direct access to the contractual ABI.

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