Category "ethereum"

How much would cost Ethereum transaction sending ERC20 token to N recepients?

I want to make an ERC20 token that supports virtual mining. That means that in my Smart Contract I want to make the rule that every K seconds, it sends X amount

How much would cost Ethereum transaction sending ERC20 token to N recepients?

I want to make an ERC20 token that supports virtual mining. That means that in my Smart Contract I want to make the rule that every K seconds, it sends X amount

Override the gasPrice in ethers.js contract interaction

How can I set the gasPrice in a contract interaction using ethers.js? I'm trying to override the gasPrice in the code below: let txPromise = contract.populateTr

How to run Docker on an external USB hard-drive in Ubuntu 21.10?

I am trying to run the following command in Ubuntu 21.10 with Docker so that it will run on my external USB hard-drive: sudo docker run -v /media/alexanderjsing

Nethereum C# BlockProcessor how to set MinConfirmations

I'm trying to process the most recent Blocks with a BlockProcessor in Nethereum. I think by default it is waiting for 12 block confirmations before processing t

Is Bitgert the fastest and scalable blockchain ecosystem ever?

Recently I happened to know that Bitgert will be the future of ideal blockchain network because it's the fastest and provides zero-gas fee. Is this true? Bitger

How to get right msg.sender calling from contract instance a.foo() and have all secure from 3rd parties

I got stucked in thoughts guys and I need bit of clarification to move it forward. (Description is about real problem, code is for best (I hope so..) understand

How to convert string to bytes8 in solidity?

I get string parameter in the function, and the length of the parameter is less than 8. and I want to convert this parameter to bytes8 for saving in the array.

Ethtx tasks can be used with webhook jobs

I would like to know if ethtx tasks can be used with webhook jobs. I tried to run the job from the operator UI and it returns an internal server error, when I l

It takes too long to send transaction to the smart contract which is already deployed. (Nethereum + Unity)

I'm making some dApp using Unity & Nethereum. I deployed one contract to the Ropsten Test Net using Remix. And I had abi & bytecode of that, so I made D

I am getting "AssertionError: Expected transaction to be reverted with Username " when I am testing my solidity code

When I am running npx hardhat test on the below smartcontract I am getting AssertionError: Expected transaction to be reverted with Username is taken please try

Hardhat Config Error HH100: Network goerli doesn't exist

I am trying to deploy a contract on Goerli, but I constantly get the error Error HH100: Network goerli doesn't exist Here is my hardhat.config.ts require("doten

Solidity - Invalid BigNumber string (argument="value" value="" code=INVALID_ARGUMENT version=bignumber/5.4.2) Error

Smart Marketplace Contract: allow user to list the erc20 tokens to sell at what price in matic the buyers need to provide permission to the contract to interac

Solidity dynamic arrays in memory: overflow bug

I was trying to create a lottery smart contract that stores every tickets (ticket = address) that someone buys into into an array to later on select winners fro

Sending a signed transaction is not working - Web3 / Node.js

I am trying to send an Ethereum transaction using a private key in Node.js using the web3 library. I have tried many pieces of code but I get the same issues ev

How do I accurately convert ETH to WEI when sending transaction?

I am trying to send ETH from one account to another but the conversion from ETH to WEI keeps giving me headaches. In this case, I am trying to send 0.11 ETH but

BitQuery wrong data/not real time

Hi I started playing with BitQuery graphql to see if it would help me with querying blockchain data. I love the idea of single API for most of the blockchains.

Get ETH Balance with Ethersjs

I'm trying to get the balance of my wallet address to render on my frontend. Here's what I have so far. const [balance, setBalance] = useState(""); const hand

Uncaught (in promise) Error: This contract object doesn't have address set yet, please set an address first

I would like to know why I get this error, if the contract is declared in CONTRACT_ADDRESS and is called through contract to be used in data: Uncaught (in prom

How do I resolve this Hardhat CompilerError? (Stack too deep when compiling inline assembly)

I'm analyzing the Chainrunners smart contracts, so I went on Etherscan and copied the verified contract source code. When I tried to compile without solidity op