if event logs are processed via
ContractEvents.myEvent().processReceipt(...), what happens my receipt contains multiple different events? I'm processing a transaction receipt that contains multiple different events, but of course i'm using a particular myEvent() that matches one of them, and seeing this message in the console: web3/contract.py:1029: UserWarning: The log with transaction hash: b... and logIndex: 1 encountered the following error during processing: MismatchedABI(The event signature did not match the provided ABI). It has been discarded.. is there any API to supply multiple ABI's so that i can decode ALL of the logs for a given transaction?
It's very advanced use case, so there might not be ready made examples available
@feuGeneA i built a small library for handling events that might be useful for you - https://github.com/iamdefinitelyahuman/eth-event
you should be able to decode the raw event log with your custom abi using
eth_event.decode_logs
How to transfer parameters when using web3.py Prompt parameter type mismatch!
raise ValidationError(message)
E web3.exceptions.ValidationError:
E Could not identify the intended function with name
E Found 1 function(s) with the name
E Function invocation failed due to no matching argument types.
E web3.exceptions.ValidationError:
E Could not identify the intended function with name
reveal, positional argument(s) of type (<class 'int'>, <class 'list'>, <class 'list'>, <class 'list'>) and keyword argument(s) of type {}.E Found 1 function(s) with the name
reveal: ['reveal(int128,uint256[128],bool[128],bytes32[128])']E Function invocation failed due to no matching argument types.
Hi guys! I have a question, we have an internal accounting system and we want to include Ethereum and Erc20. With BTC based blockchains there is the possibility to "move" funds locally, without sending a fee. Is there such possibility with the ETH blockchain (or with for example Web3PY, Geth etc.). I searched for a long time, going through a lot of resources, but haven't found the answer yet. If not, are there other ways of performing such actions?
With BTC based blockchains there is the possibility to "move" funds locally, without sending a fee.
Why is "move" in quotes? Is it staying at the same address? I don't understand what you're trying to do.
@ArendVendit_twitter
Yeah, the account concepts between bitcoin and Ethereum are quite different: UTXO vs account balance and storage. I can't think of what the equivalent would be, partially because I don't understand bitcoin's model that well, and partly because Ethereum doesn't really have such a thing as multiple accounts in the same wallet. I guess that would be like an HD derived accounts, but moving funds between those accounts is like any other transfer: it needs to be on-chain. Other than that, maybe there is some layer-2 thing, but I couldn't tell you any more.
I don't think there's any fundamental difference that the UTXO structure gives you which allows "free internal transfers", it's just more that a wallet can store and use keys from multiple derived accounts as one "wallet", which is an abstraction of convenience. Moving funds between diff keys still needs to happen on chain, but there's more options for how to aggregate funds from multiple UTXOs. I guess there is also a minimum transfer size to consider, I don't fully understand how that works tbh.
@luolixuan check out the docs on
processReceipt https://web3py.readthedocs.io/en/stable/contracts.html#web3.contract.ContractEvents.myEvent there is an example there you can follow
@luolixuan the
contract is the contract instance deployed by you, and myEvent is the name of the event you're looking at. events just stays as-is. Maybe the code block under this section helps? https://web3py.readthedocs.io/en/stable/contracts.html#web3.contract.ContractEvents
Hey all! 5.3.0 is out! Hidden in the Misc section is python 3.8 support for those of you wanting to upgrade :tada: https://web3py.readthedocs.io/en/stable/releases.html
hey @fubuloubu I'm running some async celery tasks that wait for tx mining and then do some stuff. just noticed that using
getTransactionReceipt(0xF00) throws TransactionNotFound if 0xF00 is well, not found. The docs say than None would be returned if not mined yet. I am confuse... Also I am intentionally not using waitForTransactionReceipt because we have observed it going nips-up with light nodes
i will continue that experiment by trying the polling tho, the problem we had was it just timing out tho. @kclowes thx (definitely 'clearer' lol)
Hey guys,
hope your fine! Actually, I'm working for a few weeks with web3py, ens, infura and all this stuff. My Code can show me addresses of ens names and vise versa (cheers to Jason Carver!).
At this point I have the problem that in the case when I want to set a subdomain for my top-level domain there comes an error because I can't proof that I am the owner of the top-level domain. I tried to edit my code with my infura private key but it didn't work.
So, does anybody know how I can solve this problem??
best wishes
Mert
Ah, you are trying to set a subdomain using web3.ens, but with a local private key? I'm not sure that's been tested, ens is kind of special, and was built before local private keys existed in web3.py. If I understand what you're trying to do, it's worth searching for an issue to add your story, and creating one of it doesn't exist. @mert-oezkaraman
Hey Jason, thank you for fast response! The main problem is that I try to built a subdomain to my (in ENS created) top-level domain. But when I try to add a subdomain by using web3.py I get a error in bash. I have to proof that I'm the owner of the top-level domain, even tough I am the owner. @carver
@mert-oezkaraman have you tried passing the provider to your ens instance, like in the example here: https://web3py.readthedocs.io/en/stable/ens_overview.html#setup ?
So I have an API which does some aggregation for me around some smart contract events. Imagine and endpoint that looks, from a given block to a given block, for a contract
Foo's emitted event Bar. There's an entry in the Web3.py docs thats of interest to me, https://web3py.readthedocs.io/en/stable/filters.html#web3.utils.filters.Filter.format_entry. Alas, however, zero examples and the one-sentence description isn't enough for my low intellect to go on
I'll go dig into the repo specs now, see if something is there, but if anyone knows how to use this, speak up por favor
k so, just muck about with the entry and return what i want, what could possibly go wrong