watching for events in web3 v1.x.x

Question

I deployed a contract and would like to watch for events on that contract.

var access_manager_erc20_abi = require('./AccessManagerERC20_abi.js');  //To read the abi.

//In this js file i export abi into a variable and use it while creating instance of contract below.

//Smart contract address

var AccessManagerERC20ContractAddress = "0x3267ced1528c7eabe69bd129b3d0faf9986d6b55";

//creating instance of contract

AccessManagerERC20Contract = await new web3.eth.Contract(access_manager_erc20_abi,AccessManagerERC20ContractAddress);

watching for events, followed documentation from https://web3js.readthedocs.io/en/1.0/web3-eth-contract.html#events

AccessManagerERC20Contract.events.getAccessERC20Event({
    filter: {_producerGatewayID:acc[1]}}, function(error, event){ console.log(event); })
.on('data', function(event){
    console.log(event); // same results as the optional callback above
})
.on('changed', function(event){
    // remove event from local database
})
.on('error', console.error);

when I try to execute this piece of code, it says

TypeError: AccessManagerERC20Contract.events.getAccessERC20Event is not a function

Can someone help me please. I am using web 3 v1.0.0. beta.

Thanks in advance

Answer 1

I will just point to another question that you just asked because this seems to be the same problem:

using abi generated by truffle in DApp

If you look at your abi-file it is the same problem and you need to call:

AccessManagerERC20Contract = await new web3.eth.Contract(access_manager_erc20_abi.abi,AccessManagerERC20ContractAddress);