how to parse payload of raw transaction

[eden-wang]

I want to get recipient's address and amount, but I don't know how to parse the payload. I do know what I need is in the payload

[jolestar]

The document is out of date, the payload struct is defined at

starcoin/vm/types/src/transaction/mod.rs

Line 305 in 99f0392

pub enum TransactionPayload {

What is the language that you used to parse the payload?

[eden-wang]

I use python. I found the python sdk yesterday, and it works now, thank you

    from starcoin.starcoin_types import TransactionPayload__ScriptFunction
    p = TransactionPayload__ScriptFunction.bcs_deserialize(
        bytes.fromhex(
            "02000000000000000000000000000000010f5472616e73666572536372697074730c706565725f746f5f706565720107000000000000000000000000000000010353544303535443000310f5ae543d68bfa9ff62f2f9b26f6f058d01001000e1f505000000000000000000000000")
    )
    r = p.value.args[0].hex()
    amount = p.value.args[2]
    from starcoin import bcs
    amount = bcs.deserialize(amount, st.uint128)[0]
    print(p)
    print(r, int(amount) * 10 ** -9)

the result is

TransactionPayload__ScriptFunction(value=ScriptFunction(module=ModuleId(address=AccountAddress(value=(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1)), name=Identifier(value='TransferScripts')), function=Identifier(value='peer_to_peer'), ty_args=[TypeTag__Struct(value=StructTag(address=AccountAddress(value=(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1)), module=Identifier(value='STC'), name=Identifier(value='STC'), type_params=[]))], args=[b'\xf5\xaeT=h\xbf\xa9\xffb\xf2\xf9\xb2oo\x05\x8d', b'\x00', b'\x00\xe1\xf5\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00']))
f5ae543d68bfa9ff62f2f9b26f6f058d 0.1

[tarvos21]

starcoin.js also provides function to decode transaction payload. Examples can be found here:

• decode transaction payload

• starcoin-explorer's transaction details

[eden-wang]

yeah, it is. But python sdk works for me right now, thank you