Infura event listening [duplicate]

Question

I am using Infura, Ropsten Test network, Web3@0.20 in the back-end of my Express website. I want to listen events in my ERC20 contract. I tried a lot of methods, but still failed. How do I revise it? Thanks a lot.

contract.Transfer({}, { fromBlock: 0, toBlock: 'latest' }).get((error, 
eventResult) => {
  if (error)
      console.log('Error in myEvent event handler: ' + error);
  else
      console.log('myEvent: ' + JSON.stringify(eventResult.args));
});

Answer 1

This is how it works on both web3 versions with infura HttpProvider.

web3 0.2:

    myContract.events.Transfer({
        filter: {_from: SOME_ADDRESS},
        fromBlock: 6000000,
        toBlock: 'latest'
    }, function(error, result){
        if(!error) {
            console.log(result);
        }else {
            console.log(error);
        }
    });

web3 1.0

    new Promise(function(resolve, reject) {
        myContract.getPastEvents('Transfer', {
            filter: {_from: SOME_ADDRESS},
            fromBlock: 6000000,
            toBlock: 'latest'
        }, function(error, event){
            if(!error) {
                resolve(event);
            } else {
                resolve(error);
            }
        });
    });

In web3 1.0 you have to do it as promise if you want to keep using the HttpProvider. Note that myContract is the instance of my contract and 'Transfer' is the name of my event, you should have different event name.