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I have followed Web3 documentation to subscribe an evnet, I have created Instance of web3 using infura url as argument.

Created contract object using, 

const contract = web3.eth.contract(abi, address)

Where abi and address containing Contract ABI and Contract Address respectively.

All documents and tutorials used web3.eth.Contract but it give TypeError: web3.eth.Contract is not a Constructor, so I have replaced it with 'c' web3.eth.contract.

The contract object returns, ContractFactory -> eth -> (List of functions) -> abi -> new In object structure.

I am not able to get an Event as object structure. Referred this tutorial also.

I have web3 version: 0.20.7, is there any problem with web3 version?

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  • 1
    This web3 version is a few years old you should probably use a new one. Not sure if this is the error.
    – cqx
    Aug 30, 2019 at 6:38
  • @Pave, Yes Exactly it's just a version issue. Now it works as given in web3 documentation and references.
    – Rudrika
    Aug 30, 2019 at 7:13
  • 1
    Would be great if you could mark this question as solved!
    – cqx
    Aug 30, 2019 at 8:26

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This web3 version is a few years old you should probably use a new one.

Make sure to update!

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