Get logs based on event name

[sshmaxime]

Hello :)

How can I filter logs on a receipt based on the name of an event ? Should I use logs or logsBloom ? How can I do it ?

This is what I'm doing using web3:

const logs = res.logs.filter((log) => log.event === 'ConverterUpgrade');

Thank you :)

[sshmaxime]

Up <3

[ricmoo]

You can use the Contract API which understands how to build the ABI encoded structures you need. Then you can just use contract.queryFilter("ContertUpgrade", fromBlock, toBlock) to get a list of the events, which will also include all the values parsed and decoded for you.

But if you just want to do things like this, the way Solidity emits an event is by using the hash of the normalized event name as the first topic. So, for example, if your method was function foo(address bar) you would use the hash ethers.utils.id("foo(address)"). You can look through here to learn more about how events are processed internally, but I highly recommend you just use the Contract API. :)

[ricmoo]

(moving this to discussions)