event args

[jeevansiddu]

Ethers Version

6.6.2

Search Terms

events,logging , args

Describe the Problem

In Current Version of ethers v6 ., once the event is emitted how we should log them ., because the older method of logging from transaction receipt is not working "
for example this is my function code

function getWinner(uint256 id) public{
        bool istimepassed = isTimePassed(id);
        if(!istimepassed){
            revert Voting_stillopen();
           
        }
        else{
            string memory winner;
            uint256 max=0;
            uint256 len=pollidtovote[id].options.length;
            for(uint256 i=0;i<len;i++){
                string memory name=pollidtovote[id].options[i];
                uint256 count=votecount[id][name];
                if(count>max){
                    max=count;
                    winner = name;
                }
            }
            emit winnerAttained(id,winner);
            console.log(winner);
            pollidtowinner[id]=winner;
            // uint256 len=voterslist[id].length;
            // for(int i=0;i<len;i++){

            // }
        }

for this i have wrote a specific test for the event of winner attained (Note : I have declared the winner as an indexed string )

it.only("Calculates the winner from an emitted event", async function () {
      const { VotingSystem, id, options } = await loadFixture(EnterVote);

      await new Promise(async (resolve, reject) => {
        VotingSystem.once("winnerAttained", async () => {
          try {
            // assert(endingtimestamp > startingtimestamp);

            resolve();
          } catch (e) {
            reject(e);
          }
        });
        const txnresponse = await VotingSystem.getWinner(id);
        const txnreceipt = await txnresponse.wait(1);
        console.log(txnreceipt.logs[0].args.target);
      });

I have tried all the ways to log the winner but In the present version of ethers it is not working ., So if anyone knows please help

I can Understand ethers is not verifying events because the contract it can emit events from other contracts whose ABI ethers doesnt know .,
but here the basic use case for me to log the event and find the winner ., is there any method to log the winner

when are the cases which ContractReceipt will be returned , and when txnreceipt is returned , and how to pass an event fragment in the function to return a contractreceipt

Code Snippet

function getWinner(uint256 id) public{
        bool istimepassed = isTimePassed(id);
        if(!istimepassed){
            revert Voting_stillopen();
           
        }
        else{
            string memory winner;
            uint256 max=0;
            uint256 len=pollidtovote[id].options.length;
            for(uint256 i=0;i<len;i++){
                string memory name=pollidtovote[id].options[i];
                uint256 count=votecount[id][name];
                if(count>max){
                    max=count;
                    winner = name;
                }
            }
            emit winnerAttained(id,winner);
            console.log(winner);
            pollidtowinner[id]=winner;
            // uint256 len=voterslist[id].length;
            // for(int i=0;i<len;i++){

            // }
        }

### Contract ABI

_No response_

### Errors

_No response_

### Environment

_No response_

### Environment (Other)

hardhat - 2.17.0

[zemse]

Currently, there is an issue when a dynamic type is marked as indexed. Since topics can only be 32 bytes, these dynamic types have to be hashed and if one could find the preimage of keccak256 efficiently they would become richie rich, hence ethers.js cannot give you the value of string winner.

Solution is to either remove indexed keyword from string otherwise add additional string without index.

event winnerAttained(uint id, string indexed _winner, string winner)

The indexed winner will go in the topics and the other winner will go in the data in abi encoded format which you can easily decode using ethers.js