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I'm exploring web3 following instructions from the docs and running the code below. The function throws with the error message being: Error: Invalid JSON RPC response: ""

For context the code below works when running a local node script, but gives me the error when running in a Node 8 environment hosted by firebase.

What am I doing wrong and can anyone explain what it means?

const web3 = new Web3(new Web3.providers.HttpProvider("https://mainnet.infura.io/v3/<project ID>"))
const weiBalance = await web3.eth.getBalance("0x52bc44d5378309EE2abF1539BF71dE1b7d7bE3b5")
console.log(weiBalance)
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  • Perhaps you need to substitute a specific <project ID> in the first line?
    – Mad Jackal
    Dec 29 '20 at 17:19
  • Just so you know, web3.eth.getBalance returns a Promise object, which you need to resolve in order to get the actual balance of the input address.
    – goodvibration
    Dec 29 '20 at 17:34
  • yes sorry to not be more specific here. <project ID> serves as a placeholder here I added my id in the actual code. Also I added an await for the promise to resolve. That was not related to the error
    – FreddyCoen
    Dec 29 '20 at 18:11
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Ok i figured this out. Had to upgrade to paid plan in firebase.

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  • This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post. - From Review
    – Shane Fontaine
    Dec 30 '20 at 18:58
  • 1
    @ShaneFontaine It does answer the question: it doesn't work in firebase free tiers.
    – Ismael ♦
    Jan 2 at 14:36

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