[SOLVED] events.MyEvent broken since .52

[Mozeps]

Description

Subscribing to an event of a contract deployed to a ganache blockchain-client using events.EventName or events[eventSignature] throws an error. The syntax follows the example of the web3 docs (https://web3js.readthedocs.io/en/1.0/web3-eth-contract.html#id38).

Expected behavior

myContract.events.SomethingHappened(
        {
          fromBlock: 0
        },
        (error, event) => {
          if (error) {
            console.error("subscription error:", error);
          } else {
            console.log("successfully caught event");
          }
        }
  );

Executing this code should print the "successfully caught event" message multiple times to the console.

Actual behavior

Following error message is printed:
myContract.events.SomethingHappened is not a function

If I use events.AllEvents the command works as expected.

Steps to reproduce the behavior

1. Run Ganache
2. Deploy a contract similar to the following:

pragma solidity ^0.5.0;

contract SubContract1 {

  bytes32 public state;

  event SomethingHappened(
    bytes32 name
  );

  constructor() public {
      state = stateOne;
  }

  bytes32 stateOne = "state one";
  bytes32 stateTwo = "state two";
  bytes32 finishedText = "Finished doing something";

  function doSomething() public {
    if(state == stateOne) {
        state = stateTwo;
    } else {
        state = stateOne;
    }
    emit SomethingHappened(finishedText);
  }
}

3. Initialize web3 in Node.js like so:
   let web3 = new Web3.providers.WebsocketProvider("ws://localhost:8545");
4. Initialize the contract in Node.js like so:
   let myContract = new web3.eth.Contract(abi, address);
5. Run subscription code shown in the beginning.

Error Logs

(node:23124) TypeError: myContract.events.SomethingHappened is not a function

Versions

• web3.js: 1.0.0-beta.52
• nodejs: v10.15.0
• ganache: v2.0.0

[nivida]

Thanks for opening this issue!
Could you add the ABI you are using?

[Mozeps]

[ { "constant": true, "inputs": [], "name": "state", "outputs": [ { "name": "", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function", "signature": "0xc19d93fb" }, { "inputs": [], "payable": false, "stateMutability": "nonpayable", "type": "constructor", "signature": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "name", "type": "bytes32" } ], "name": "SomethingHappened", "type": "event", "signature": "0x131651a9ef17e0a6963ff90cb2e0d1007110861a27cec93815590ae0bb418e69" }, { "constant": false, "inputs": [], "name": "doSomething", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function", "signature": "0x82692679" } ]

[nivida]

Thanks, I'll test it asap.

[Mozeps]

Requesting to close this issue.

After updating ganache to v.2.1 I cannot replicate this issue.