Trying and failing to switch my dapp from local node to infura, please help?

Asked Jun 12 '19 at 15:15

Active Jun 13 '19 at 16:43

Viewed 74 times

I have a nodejs 'server' running that listens for events on the blockchain. Currently I have this line in my code:

var provider = new Web3.providers.HttpProvider("http://localhost:8545");

But I'm fed up paying $40 every month for my node. I want to switch to infura. I signed up, added my project, got project ID. Then changed this line of code to:

var provider = new Web3.providers.HttpProvider("https://mainnet.infura.io/v3/PROJECTID");

And I get a whole load of errors as per https://i.stack.imgur.com/UKkNw.png. What's going on? What am I doing wrong?

Error: The method eth_newFilter does not exist/is not available

edited Jun 13 '19 at 16:43

DamiToma

asked Jun 12 '19 at 15:15

pumpkinfeet

1

"And I get a whole load of errors." Maybe tell us what those errors are. :-) – user19510 Jun 12 '19 at 17:25
good point :) updated my Q with the errors. I think it's the same set of errors when I use localhost when parity isn't running. It just can't connect to a node. – pumpkinfeet Jun 12 '19 at 19:24
are you listening for events using websockets? – AnAllergyToAnalogy Jun 12 '19 at 19:31
1

Possible duplicate of Infura web3 provider for Events (.get & .watch) – Ismael Jun 12 '19 at 19:48
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@pumpkinfeet Infura only support events through websockets. – Ismael Jun 12 '19 at 19:49
Please share the actual errors, in text, not a screenshot. Screenshots are not searchable or accessible. – user19510 Jun 12 '19 at 20:52
What is your server doing exactly, is it read only? Or are you writing to the Blockchain? – foba Jun 13 '19 at 17:54
I am listening to events, so it sounds like I need websockets. But I also understand that I need web3 1.0 for websockets. So I'll need to upgrade everything to that and then try this again :) – pumpkinfeet Jun 14 '19 at 10:23

Trying and failing to switch my dapp from local node to infura, please help?

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