Error in simple decoding

[johnBlockchain9688]

Hi dev running this simple script with version 2.0

from uniswap_universal_router_decoder import RouterCodec
def decode(trx_input):

codec = RouterCodec(rpc_endpoint="https://Yourlinkhere")
decoded_trx_input = codec.decode.function_input(trx_input)
print(decoded_trx_input)

trx_input = "0xb8338f24a98c9699ac4060c630dc8678be8894c16d3f86d5be3bd52ec8f8b170" # the trx input to decode

decode(trx_input)

Return this stack trace.
File "/home/test/PythonBot/test.py", line 21, in
decode(trx_input)
File "/home/test/PythonBot/test.py", line 15, in decode
decoded_trx_input = codec.decode.function_input(trx_input)
File "/usr/local/lib/python3.10/dist-packages/uniswap_universal_router_decoder/_decoder.py", line 94, in function_input
.......
ValueError: Could not find any function with matching selector

Can you help me?

[Elnaril]

Hello @johnBlockchain9688 !

Sorry for the late answer, I'm mostly AFK at the moment ...

About your issue: you're trying to decode a transaction hash, not a transaction input data.
0xb8338f24a98c9699ac4060c630dc8678be8894c16d3f86d5be3bd52ec8f8b170 is the transaction hash.

You have 2 options:

• using this transaction hash, you need to call codec.decode.transaction(trx_hash), see the doc here
• or, using the actual input data (you can find it on Etherscan or use the web3.py method get_transaction()), you can call codec.decode.function_input(trx_input) like you tried to do.