1

From the web3 documentation: https://web3js.readthedocs.io/en/1.0/web3-eth-subscribe.html I use this code sample:

var subscription = web3.eth.subscribe('logs', {
    address: '0x123456..',
    topics: ['0x12345...'] }, function(error, result){
    if (!error)
        console.log(log);
});

and I got this error:

TypeError: web3.eth.subscribe is not a function

is "subscribe" deprecated ? Is there a replacement for it ?

3

The documentation you are referring to says -

This documentation is work in progress and web3.js 1.0 is not yet released! You can find the current documentation for web3 0.x.x at github.com/ethereum/wiki/wiki/JavaScript-API.

That is the reason you are getting this error, you can follow this link for web3 js latest documentation.

Hope this helps.

0

also address must be a contract address and not an account https://github.com/ethereum/web3.js/issues/1752#issuecomment-404385542

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