Questions tagged [accounts]

Ethereum has two types of accounts: externally owned user accounts, controlled by private keys, and contract accounts, controlled by their contract code.

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Have I accidently created multiple Ethereum accounts?

I am brand new to Ethereum. I am reading up on the basics on https://ethereum.org. I am still a little confused about the differences between a wallet and an "account." According to this ...
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Create account with initial fund using web3

Is it possible to create an account with initial fund using web3? Every time I create a new account I had to do fund transfer to add initial fund. If there is way to fund the account with minimum ETH ...
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web3.eth.accounts.create vs web3.eth.accounts.wallet.create

I was playing with web3.eth.accounts.create() and web3.eth.accounts.wallet.create functions, and reading web3 docs about it. I know that an externally-owned account is the same as a wallet, you have ...
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How it is possible to login in ethereum wallet account only with private key?

I was playing with web3.eth.accounts.create([entropy]) function and I can easily create a new Ethereum account and get the address and the private key. I created a simple address/private key pair and ...
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1answer
35 views

How can callable contracts have an empty account state?

On page 4 of the yellow-paper, the definition of an "empty" account is provided. An account is empty when it has no code, zero nonce and zero balance. A formal definition is then provided, ...
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2answers
23 views

Generate Ethereum account in a JSON/UTC v3

What are some trustful ways to generate an Ethereum account in a JSON/UTC v3 format? I know some web wallets, but I would prefer a very used/well-known desktop or plugin wallet. Metamask does not ...
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1answer
40 views

Cancelled Transaction in MetaMask USDC leads to loss of funds

I had attempted to transfer 992 USDC from MetaMask to a Ledger Account but had decided to cancel the transaction. On cancelling, MetaMask reports that the cancellation succeeded, but my MetaMask USDC ...
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Ethereum wallet recommendation

I'm searching for a software Ethereum wallet + sub-service around it, which is capable of withdrawing to a bank account/PayPal. I would prefer PayPal, but there aren't many of these. Also I need ...
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32 views

What is the best practice to find out deposits to some Ethereum accounts?

Suppose we have multiple Ethereum accounts and we are trying to track them for any deposit. I mean we want to be notified for any transaction in the blockchain if the transaction is to any of our ...
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11 views

Are there any open source accounting systems

I am looking for some accounting system for my project. I am developing an app where people have their own accounts, just like on any centralized exchange. Users will be able to deposit some ERC20 ...
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1answer
59 views

web3.eth.accounts[0] undefined

I am new and I am trying to make my first transaction using geth and truffle. to specify a sender address I type in the truffle console: src = web3.eth.accounts[0] but I get "undefined" if I ...
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trying to send some tokens from unlocked account

So I'm trying to send some tokens from an, with ganache-cli unlocked, address to mine to try something out, however for my code to work I need some starting amount of the initial token. Is there some ...
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How can I create an ethereum wallet which can show many addresses balance?

I'm looking for a wallet which can scan many ethereum addresses balance,(like electrum for bitcoin). I need to import 200 (or more) eth addresses and scan their balances include their tokens(if funded)...
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1answer
72 views

Truffle Console: How to print Ether values for the accounts?

I am trying to follow a tutorial available at: medium Just Dev > getBalance = web3.eth.getBalance > balanceInEth = address => web3.fromWei(getBalance(address).toString()) I got errors so I ...
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1answer
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How to synchronise accounts between different geth installations

I have a problem. If I build two geth nodes A and B, these two nodes are already in communication and synchronization. I created accountA on node A, and I can unlock accountA on node A with the ...
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What happens in the account state when we pre-send ethers to a smart contract?

I'm asking this question in relation to this one : pre_sending Ether where the OP asked in a comment of the answer about what happens at the low-level when pre-sending ethers to a smart contract. As ...
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1answer
70 views

Deploy from Remix to Quorum using password? “authentication needed: password or unlock”

I can SSH into the box that is running Quorum: run geth with the flag --allow-insecure-unlock geth attach new-node-1/geth.ipc personal.unlockAccount(eth.accounts[0]) I'm interested in knowing if I ...
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How do i change Truffle default account after contract deployment to interact with it?

I work with Truffle and Ganache along side Windows Powershell. Here, Truffle's default account is account[0]. I deploy my contract with that. After a while, i need to interact with the contract with ...
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186 views

ReferenceError: accounts is not defined

I was using "truffle test" for testing with JS. gives this error. here is the code of that part. it('transfer success', function(){ return Eve.deployed().then(function(instance){ ...
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1answer
49 views

Can queue of pending transactions will be confirmed if send last transaction with high gas price?

I have several pending transactions from the same account with a low gas price. What if I send one more transaction with next nonce but high gas price? Can it help to mine all pending transactions ...
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1answer
69 views

Import accounts on Ethereum Wallet is disabled

The Import accounts option in File is disabled. I am using the Ethereum-Wallet-linux64-0-11-1, latest version (now). After I reinstalled the OS, I tried to import some accounts. I copied the accounts ...
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183 views

Served eth_sendTransaction err=“unknown account”

I'm facing issue with private chain, when I run the node, it shows the logs as below, and transaction went in pending status. Folder structure All the wallet file reside into keystore folder. Node....
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1answer
221 views

Solidity-how to transfer ether from an account to a smart contract as deposit

I just started to learn Solidity. In the SimpleAution contract, there are two functions, bid() and withdraw(), the former iniating a bid, transfering some ethers to the contract as deposit, the later ...
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1answer
510 views

Is there a way to retrieve private key of ganache account with web3?

web3.eth.getAccounts() returns list of accounts. Is there a way around to get the private key of one of the account from the list returned from the above code?
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53 views

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 a specific number of users who all have ...
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1answer
55 views

problem with sending ethers on ropsten network

I am trying to send ethers from one address to another address on the ropsten network but I get the message "undefined". Here is my code: web3.eth.getTransactionCount(account1, (error, ...
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569 views

Is it required to use multiple Etherem accounts to send transactions on behalf of customers to avoid pending transactions?

We are developing an Ethereum based exchange. In our project, customers put their orders to send ETH or ERC20 tokens to others, and we currently do these transactions via our Ethereum account on their ...
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1answer
254 views

The send transactions “from” field must be defined using Infura web3

when I try to send my transaction using infura I get this error "The send transactions "from" field must be defined" My problem is my web3 object. When I used Metamask and ...
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1answer
54 views

It is secure do accounts just with web3.eth.accounts.create() ? (entropy)

const Web3 = require('web3'); let url = 'infuralink'; let web3 = new Web3(url); console.log(web3.eth.accounts.create()); This is the code of many tutorials for do a key pair. it is completely secure ...
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99 views

Truffle Console: “undefined” message varaiable declaration

I am giving following commands at Truffle console but I am getting "undefined" message: > $ truffle console > > You can improve web3's peformance when running Node.js versions older > ...
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1answer
17 views

Was the function called before from a specific address?

Consider a function definition as below - function checkForUpvote() external returns(bool){ Here I would first like to check, if the external account invoking this function : has invoked this ...
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1answer
292 views

Ethereum transaction with multi input and multi output like bitcoin

What happens to my wallet when I only 1000 accounts with 0.0001 ether and the tx-fee is about the same, I can't spend anything anymore?
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3answers
712 views

Unknown Accounts suddenly appearing in MetaMask wallet…?

My MetaMask wallet has multiple accounts which I did not create. I have no idea how they there. Is my MetaMask wallet compromised? Or is this normal that MetaMask creates new wallet addresses when ...
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1answer
56 views

web3 does not find metamask accounts

I have a very strange bug in the code. When loading a page with a code, the current account in metamask should be determined. but this only happens on one local domain. in other domaines accounts are ...
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1answer
43 views

Can an Ethereum account be used by several users at the same time?

I am developing a DApp for donations (the donations are not in cryptocurrencies). I want the donor to make donations without registering on the platform. In fact, I don't need to know who he is. So it ...
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1answer
44 views

How to sign transactions while Geth does not provide private key?

I've lunched Geth for the first time and created some accounts on it. While creating accounts, I entered a password for each, and a key file is generated which contains encrypted private key belonging ...
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1answer
54 views

My cutom RPC meta mask created account is not showing in terminal

I have installed geth and created genesis.json and run my own private eth network. I started my rpc using geth --rpc --rpcport 5200 --rpcaddr 192.168.1.99 --datadir ./private Then I connected to ...
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21 views

How is the storage trie of a user account which does not belong to any contract?

We know that storage trie (stored in the leaf node of state trie) is storing the contract's data related to an account. Then, what will be stored in the storage trie of a user account which does not ...
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43 views

keystore path in geth command does not work

I've lunched Geth server and want to store data and keystores in a non-default directory. I've used this command to run Geth: geth --datadir /etc/dir/ --keystore /etc/dir/keystore/ But when I run ...
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2answers
477 views

How Ethereum supports in dealing with double spending problems

Let's us consider a scenario where I am using my ethereum wallet for creating a transaction request (where my account balance is 100 eth and I am doing a transaction of 50 eth to someone from one ...
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1answer
68 views

Difference between web3.eth.personal.getAccounts() with web3.eth.getAccounts()

What are the differences between web3.eth.personal.getAccounts() and web3.eth.getAccounts()? environment truffle: v5.1.7 using truffle console.
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1answer
709 views

Generating multiple deposite address for one account

I want to create something like a Crypto exchange, in which I need to generate different unique deposit addresses for each user, so they can send funds to their accounts while I can keep track of how ...
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1answer
946 views

Execute transaction Approve directly against contract address (without ABI)

Solved For now, you will always need the ABI to execute a call against the ethereum network with web3. A simple way is to reconstruct the function you wish to execute is to, either create a separate ...
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3answers
765 views

Can an NFT (e.g. ERC721) simultaneously belong to two different entities, say an user Owner, as well as a user Custodian?

For example, on the blockchain say you own a ERC721 Car token at your wallet address, but you want to park it in the ERC998ERC721 top down composable Garage owned by your friend, while still retaining ...
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2answers
4k views

Reinstalled MetaMask, account lost?

I had 3 accounts under my MetaMask Chrome extension. One of them had some small deposit. I have reinstalled the extension and used seed phrase to get access again. However, I can see only one account (...
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1answer
209 views

private key vs seed

I made an extra account in Metamask for my GF, I kept Account 1 for myself and I gave only the private key of Account 2 to my GF. I kept the seed words only to myself. Since then, she has dumped me ...
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667 views

Unable to Unlock Account Even After specifying allow-insecure-unlock

Software: Ubuntu on VirtualBox Update, tried putting two dashes, on allow-insecure-unlock, doesn't work solidity@solidity:~$ geth attach http://127.0.0.1:8545 --allow-insecure-unlock Incorrect Usage:...
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1answer
197 views

Unlock Ethereum account via infura

I am trying to connect my wallet (Metamask) via Infura, but I receiving an error. My code: [HttpPost] public async Task<IActionResult> LoginAsync([ModelBinder(typeof(AccountBinder))] ...
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38 views

getAccounts undefined recently

I've been using web3 v 0.20 and I recently noticed that getting accounts from web3.eth.getAccounts(function(error, accounts) { returns undefined. Is Metamask 7.2.1 forcing it to be undefined for ...
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2answers
4k views

How to check Ethereum smart contract info?

I want to know 3 things: Is an address a smart contract? Is this smart contract an ERC20 or ERC721 token? Is the Solidity code public?

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