Ethereum Questions, Problems & Solutions : TransWikia.com ~ Page 2

Viewing transaction events by using web3 on geth console

According to https://web3py.readthedocs.io/en/stable/contracts.html#web3.contract.ContractEvents.myEvent web3 allows to extract the pertinent logs from a transaction receipt:tx_hash = contract.functions.myFunction(12345).transact({'to':contract_address})tx_receipt = w3.eth.getTransactionReceipt(tx_hash)rich_logs = contract.events.myEvent().processReceipt(tx_receipt)rich_logs[0]['args'] {'myArg': 12345}but when...

Asked on 01/01/2022 by Juan Ignacio Pérez Sacristán

1 answer

I'm trying to create an app that allows people to exchange ether between themselves but I have the error: "web3.eth.transact is not a function"

<!DOCTYPE html><html> <head> <meta charset="utf-8"> <center> <title>dEnergy</title> </head> <body> <label for="name" class="col-lg-2 control-label">Power you...

Asked on 12/30/2021 by user34915

2 answer

.toml stream did not contain valid UTF-8

While trying to configure parity using the toml file (Tom's Obvious, Minimal Language), I stumbled on this error - $ parity --config /data/parity/node.tomlLoading config file from...

Asked on 12/30/2021 by Chaitanya Bapat

1 answer

Acceptable Gas Usage of Smart Contract functions

So I've been building a smart contract where users can register and store their projects at. I'm wondering if the gas usage of functions within my contract is acceptable or...

Asked on 12/30/2021 by wbt_

3 answer

Reproducing a Ganache Server across multiple computers

There are multiple developers on the team and it seems as though we all want to be working on a specific test network with specific public and private keys with...

Asked on 12/30/2021 by SDG

1 answer

Quorum 7nodes example unable to attach to geth node 1,2,4,5,6,7 but node 3 is working

Quorum 7nodes example all of sudden gave fatal error unable to attach to remote geth.Problem: can't attach to geth nodeEvery time I import metamask account to geth node...

Asked on 12/27/2021 by Surbhi Audichya

2 answer

Metamask Web3js Synchronous Method Error

Okay guys, I'm a complete newbie to Ethereum and Web3.js and going through the Crypto Zombies tutorial and have done okay so far. But, when I use this function in...

Asked on 12/27/2021

1 answer

Use Values Returned from One Function in Another

need a little help if you can spare the time. Making a little card game where people can collect "warrior" cards. We'll have an initial 12 master "cards" that supply...

Asked on 12/27/2021 by Kevin Phillips

1 answer

What is the v part of transaction signature?

If I understand correctly when we send a transaction, we send an unsigned part m and a signature consisting of v, r, s. Each node verifies the signature by checking:...

Asked on 12/27/2021 by Anh Dũng Lê

1 answer

How to convert hashed result into readable format?

I'm trying to convert a hashed block number "30054a" into readable format but I'm getting logs something like this:0JFor another hashed value:Y��#�(�J�d��F,ĦJ/I'm using the following code on my...

Asked on 12/25/2021 by Sowmay Jain

1 answer

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