Trying to extract internal transactions from pancakeswaps

[kevsav]

Hello all,

Given the following transaction in bsc: 0x575e4a540c9605c5e6cdd318743b78f41b3c94c32cacec5478d7fd055347afed

I am trying to extract the internal transactions done on pancakeswaps

I am running the following Moralis code:

from moralis import evm_api

import json

api_key = API_KEY

params = {

“address”: “0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c”, #WBNB contract

“chain”: “bsc”,

“topic”: “0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef”, #topic ID

“abi”:

{

"anonymous": False,

"inputs": [

  {

    "indexed": True,

    "internalType": "address",

    "name": "from",

    "type": "address"

  },

  {

    "indexed": True,

    "internalType": "address",

    "name": "to",

    "type": "address"

  },

  {

    "indexed": False,

    "internalType": "uint256",

    "name": "amount",

    "type": "uint256"

  }

],

"name": "Transfer",

"type": "event"

}

}

result = evm_api.events.get_contract_logs(

api_key=api_key,

params=params,

)

pretty = json.dumps(result, indent=2, sort_keys=True)

print(pretty)

In the output i get a data which is an hexa:

“data”: “0x000000000000000000000000000000000000000000000000016345785d8a0000”

Any way to decode this?

Many thanks

[johnversus]

Hi @kevsav

Since you are trying to decode the logs of the event. You can use evm_api.events.get_contract_events to get the decoded data from the event logs.

Check the below doc for testing and for code samples.

Get events by contract | Moralis Web3 Documentation

[ChurchillBell]

Usually the data inside a transaction is in hexadecimal, and you need to know the data structure and types to interpret it. In your case, since you are looking for internal transactions on PancakeSwap, the data is most likely related to token transfers. The hexadecimal string “0x000000000000000000000000000000000000000000000000000016345785d8a0000” may represent the transferred address, amount, and type of token. However, without more information about the contract and its abi (ABI), the blockchain application interface that defines the data structure and functions of the contract, it can be difficult to decipher the data. You may need to get the appropriate ABI for the contract associated with that transaction to interpret the data correctly. If you have access to the source code of the contract or other information about its structure, this can help you decode the data.

[kevsav]

Cheers guys for your help - will give it a go