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Error: Returned error: transaction could not be decoded: unsigned transactions not supported

Okay I've finally found the answer everybody is looking for! What's breaking with the previous implementation of ethereumjs-tx is that the signed data is no longer added to the transaction instance. ...
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unsigned transactions not supported - web3, infura, @ethereumjs/tx

Okay I've finally found the answer everybody is looking for! What's breaking with the previous implementation of ethereumjs-tx is that the signed data is no longer added to the transaction instance. ...
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  • 66
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How to send ERC20 token to another account using web3.py, rinkeby and infura

Here is a tutorial on how to transfer ERC-20 tokens using web3.py. It is using web3-ethereum-defi library for token helpers. import datetime import os import sys from decimal import Decimal from ...
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Truffle Migrate Rinkeby - Error: PollingBlockTracker - encountered an error while attempting to update latest block: Error: ETIMEDOUT

I met the same problem. Here is how I resolved this problem: I saw this error message, just saying "this operation is timeout", don't just focus on this error, you should also check the ...
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  • 161
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do wallets like metamask interact with infura.io?

Yes, currently metamask uses an upstream RPC node to read information from the chain as well as broadcast transactions to the chain. The RPC used is configured per network - when a user adds a new ...
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How to call a function of a contract using web3 and infura

@chunter 's answer is very good, for additional info, I recommand infura's official doc: https://docs.infura.io/infura/tutorials/ethereum/call-a-contract here is an code snippet for example ( for ...
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HTTPError: 401 Client Error: Unauthorized for url: https://rinkeby.infura.io/v3/

dropping this comment for future encounters Make sure there is no space around the = operator. I spend a good amount of time finding out the possible causes. That was a type error introduced ...
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