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I'm new in the world of Ethereum and I'm building a app with node.js.

I'm using web3 1.0 and infura to connect to a contract and get all the logs for different events. I'm using the "getPastEvents" function from web3.

I'm getting this error time to time "Invalid JSON RPC response".

Right now, when I get this error, I just restart the app and if it passes good if not well i restart again... I'm putting a setTimout function so my app restart by itself. But because of that error, my app is crashing and doing an exit.

How can I handle this error ? any suggestion will be very appreciated.

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There are some problems with web3 1.0 and events via Infura.

And since web3.js 1.0 is not yet released, the best advise is to use web3 version 0.2x.x.

Take a look at this on how to initiate an event listener on web3 0.2x.x

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  • Thanks for the reply. Good to know... do you have any examples to be able to get past events in web3 version 0.2x.x. ? – fadmtl May 28 '18 at 15:30
  • Edited the answer with a link to a repo of mine, where I initiate the event listener in a web3 0.2x.x dapp. If you find this answer satisfactory, please mark it as such, it helps other people to find answers to their questions. Thank you. – bordalix May 28 '18 at 16:41
  • your code would be the same if i wanted to do it in node.js ? – fadmtl May 28 '18 at 18:05
  • it should work also with node.js. – bordalix May 28 '18 at 18:27
  • The event will fire inside the (err, res) => {...} so don't close it, and put your code inside the block ({}). – bordalix May 29 '18 at 6:07

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