Questions tagged [balances]

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Etherscan API Get Balance - Decimals Not Showing In Response

Expected Use the Etherscan API to make a GET request for an ETH address' balance in order to receive a response providing the Ether token quantity representing all decimal places. Observed The ...
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2answers
30 views

Best way to check balance? msg.sender.balance vs balances[msg.sender]

If I want to check if the payer has enough funds, should I use... msg.sender.balance or balances[msg.sender] ? I also see that people usually check balance in the following way: require((balances[...
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1answer
17 views

Discrepancy between Etherscan.io and Google Big Query information

I noticed that there are large discrepancies between the balances of addresses in Etherscan vs Google Big Query. Also some addresses that are listed in Etherscan are not existing in the balances table ...
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1answer
24 views

Query token balance before transferFrom

I am trying, but without luck, to query the token balance of the approver address before transferFrom event. function transferFrom(IERC20Token _token, address _sender, address _receiver) external ...
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0answers
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Why is my ether balance 0 in geth after complete sync

I setup geth on clouding server 2 weeks ago and it was synchronized already. And I deposit some eth to my account. By Etherscan, I can see my balance but web3.eth.getBalance always return 0. I create ...
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1answer
58 views

pre_sending Ether

I recently read an article about pre-sending Ether to a not deployed smart contract from hashing the knowned EOA address plus the nonce of it. Could somebody please tell me how is this possible? ...
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1answer
74 views

Find an ethereum address with a given balance of an ERC-20 token

I know it is easy to lookup the token balance of a particular Ethereum address (e.g. etherscan or via code such as this stackexchange question). If I want to find a wallet with a particular ERC-20 ...
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1answer
62 views

Get ERC20 balance of token holder as of block number with C# Nethereum and Infura

When this code runs, it throws an error "RpcResponseException: header not found", and I don't understand why or how to fix it. Any advice? Notes: I am using Nethereum in C#.net and using ...
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1answer
347 views

How to get ETH contract balance with Ethers.js

I am trying to get the ETH balance of a contract: const balance = await contract.getBalance(); but it fails: TypeError: contract.getBalance is not a function What I do wrong and how to fix the error?...
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1answer
82 views

Best practice for fetching ERC20 token balances for a given address

Are there any best practices to fetching all ERC20 token balances for a given address? I am open to using external APIs.
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1answer
18 views

How much Ether does a Smart Contract Address hold before a Payable Instantiation?

The following code always reverts to "Contract must be empty". But shouldn't address(this).balance == 0 if the contract hasn't even been instantiated yet? Maybe since the contract doesn't ...
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0answers
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BlockNumber stuck on 0 while a private network node is looking for peers

I'm extremely new to Blockchain and mining, and I've followed this tutorial to create my first private blockchain. I am stuck when it comes to mining and I'm afraid I'm quite lost. Afte I've started ...
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1answer
430 views

Problem loading token balances [solved]

I have a contract with the decimals hardcoded to 8 // Hardcoded to be a constant uint8 public constant decimals = 8; I think this is the reason Im having problems with wallets and explorer ...
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1answer
294 views

While testing wrap & unwrap of ETH to WETH on Kovan ,however the wrap function is fine but unwrap func fails,is anything wrong in my approach?

trx fails at & debug at tenderly pragma solidity 0.5.12; contract WETH9_ { mapping (address => uint) public balanceOf; mapping (address => mapping (address => ...
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0answers
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Ethereum noob. Internal TX not reflecting in balance on metamask. “bad jump destination” error. Going crazy

New to the Ethereum environment. Using metamask, I initiated three transfers of STA for ETH. The STA was deduced from my wallet, however the ETH I was to get in return is not showing. The only new ...
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0answers
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How to make my contract balance as private in Ethereum?

Suppose there are two contracts, A and B. Obviously, balance of A is public and B can read it with address_of_A.balance. Is there a way to make balance of A as a private data and B can't read it with ...
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1answer
40 views

Problem: Payment between smart contracts without reducing the balance of the sender contract

I work on Truffle. I have two smart contracts A and B. Codes of them are same. A should transfer some ether to B and store some information about this payment. I funded A with METAMASK. But, whenever ...
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1answer
70 views

Withdraw balance from external contract in Solidity 0.6

Getting two errors with the following code. abstract contract ReceiveBalanceContract is Ownable { receive() external payable { require(msg.sender == address(SendBalanceContract)); } ...
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0answers
44 views

ERC20 balance Storage Address key - how to tell which key belongs to which wallet address

I am trying to derive changes of account storage by mapping accounts (here, the accounts represent the key address in the ERC20 balances mapping mapping(address => uint256)) to their corresponding ...
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0answers
317 views

ERC20 Token balance isn't showing up in metamask [closed]

I'm making an ERC20 Token using OpenZeppelin, and I keep running into the same issue. My balance shows up in remix when I call "balanceOf," however, when I add the coin to my metamask wallet, it shows ...
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2answers
63 views

Accessing Ethereum network via JSON RPC from wallet balance/transactions

sorry if the question is silly.... I am tying to build a simple app that checks ETH wallet addresses balances and transactions (for both ETH and Tokens). As far as my knowledge goes, I think that I ...
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1answer
191 views

ETH internal transaction means i received money and it became part of my wallet balance?

When someone send a money and it is shown within internal transactions like here, then does it mean this money was added to my wallet balance and available for withdrawal same as "normal" transactions ...
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1answer
73 views

ERC 20 - very large balance created on a wallet

I deployed an ERC20 at this address: 0x60c56fb23dc18c719491759b6c40cd46e502fcbd One of the addresses I own got a huge balance (more then the token supply) couple of days back. The address is: ...
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1answer
108 views

Why Etherscan is reporting negative token balances?

I am wondering if its possible a holder to have negative balances as reported by Etherscan. Bellow are the links for the cases that I spotted: KICK token holder ...
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1answer
113 views

How can I query an API to get my erc20 token balance of an address in JSON format?

Is there an api where I can query if an address contains an erc20 token? I need it returned in JSON format.
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1answer
81 views

How to handle an ERC20 token which does not return true/false at the end of transfer/transferFrom

The ERC20 Token Standard dictates that functions transfer and transferFrom should return true for success and false for failure. However, various ERC20 tokens deployed on the network have not ...
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1answer
443 views

Total metamask balance

I am curious how to get the total current balance of my metamask wallet with as many "accounts" inside it as it bears in the moment? As I can understand metamask is the HD wallet and all my addresses ...
2
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1answer
33 views

ETC - Negative Balance

So playing around with ETC and wondering how in the world this address doesn't have a negative balance? https://gastracker.io/addr/0x6f1f8a70e2257354e81c306f130f7976dead8e8b First transactions are ...
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2answers
192 views

I want the full list of ethereum smart‑contracts whose balances increased by 1000 Ethers above the past week

How to make this kind of query using my 200kb/s second Internet connection speed ? With such speed, there’s no possibility to run an archival node (except maybe with a service allowing to download ...
2
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1answer
63 views

Why Ethereum sets user balance to MaxBig256 whenever a contract query is performed?

There is a strange behaviour on user wallet balances when performing a contract call (that is supposed to have no cost). Balance is right (expected value) until a free call is requested to a contract. ...
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1answer
97 views

How to get top 5 token holders?

I want to keep a track of top 5 token holders inside the contract in terms of their token balances, is there any efficient way to do that in solidity?
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1answer
46 views

Web3 balance is showing OmiseGo balance but not Bitball

You can see on Etherscan that I have 2 types of tokens in my wallet: https://etherscan.io/address/0xb8fd65fc6919c5b97453eaba6b895144597985b2#tokentxns 2.3 OmiseGo and 10,000 Bitball I have a short ...
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1answer
40 views

Return values after verifying an account balance on private network

When i verify the balance of an account after deploing an ERC20 token, i receive this returns: BN { negative: 0, words: [ 50, <1 empty item> ], length: 1, red: null } I know that "50" is the ...
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1answer
466 views

Etherscan api for Ropsten testnet

I found this endpoint is to obtain the token balance from Ethereum blockchain, however, I noticed that this function doesn't work on Rospten network. Please advise https://api.etherscan.io/api?module=...
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0answers
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Geth returning balance 0 [duplicate]

I started my geth using fast sync first and then normal sync once it was almost synced. 'currentBlock' is not increasing since hour and 'highestBlock' keep on increasing. geth --testnet --rpc --cache=...
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2answers
1k views

Infura Request Limitations

Are there any official information about request limitations? I know for example that there is a limit for the amount of results in getLogs: https://infura.io/docs/ethereum/json-rpc/eth_getLogs ...
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1answer
117 views

How to get notification right after account has received eth by geth?

My server stores many accounts. How do i know when and what account has received eth or i have to check them manually one by one by looping many address to check the balance? account := common....
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1answer
703 views

How to check balance of a smart contract in Remix IDE Javascript VM?

I'm working on a smart contract that can hold some ETH. Currently, I'm unable to see what is its balance in the Remix IDE. I'm trying to use the console: I have access to web3 but how to check the ...
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1answer
122 views

How does Ethereum calculate balance for a new transaction if there are already unconfirmed transactions in the mempool?

Whenever a new transaction is made, it is added to the mempool and a miner will take these transactions from the pool and try to generate a block which contains this transaction. However, before ...
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1answer
140 views

How can an address on Etherscan have a balance of 0 ETH when I don't see any outgoing transactions?

I don't know why balance of the address is 0.
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1answer
84 views

Accounts not getting the balance right

I'm trying to get the balance of a set of accounts using Parity RPC and web3.eth.getBalance. The problem is that, some accounts are returning 0 even though they have balance. For instance: https://...
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1answer
36 views

If one gains 51% of network resources can he force drain the biggest wallet? [duplicate]

If one gains 51% of the network compute resources can he force drain the biggest wallet? How could he do it if he can keep that 51% advantage?
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2answers
533 views

OpenZeppelin Starting Balance

I believe that the openzeppelin project have updated their StandardToken smart contract which is now called ERC20.sol. One issue that I have is that the new smart contract has some missing ...
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6answers
5k views

API for ERC20 token balance - EtherScan

Is there any API for ERC20 token balance of an address for a particular contract?
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2answers
925 views

How to check Balance & send ERC721 Tokens

I have SPH ERC721 Tokens. How can I check balance like ERC20 and send ERC721 tokens token to Exchange or in other wallet ?
3
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1answer
102 views

Is it possible to to send out more ether than account has while compensating for it by another transaction in the same block

Is it possible to have the following scenario? Account A has 20 ether, account B has 20 ether In transaction 1. Account A sends 25 ether to account B In transaction 2. Account B sends 10 ether to ...
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1answer
1k views

Can a contract with no payable function have ether?

The question in the title says it all. To the best of my understanding, the only way to deposit ether into a contract is by calling a payable function, and set msg.value larger than 0 (and of course, ...
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0answers
123 views

parity json RPC eth_getBalance timeout on light mode

I have timeout problem with eth_getBalance on light mode enable on parity json-rpc. I have no problem with light mode disabled. Here my command on parity parity --chain ropsten --jsonrpc-apis all -...
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1answer
195 views

How do you calculate a wallet balance in the world of shards?

I have a general question about calculating account balances in the new world of sharding. In the Bitcoin blockchain, in order to accurately calculate someone's wallet balance, you have to analyze ...
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2answers
275 views

How does 0x0000000000000000000000000000000000000000 have over $1.5 trillion octillion octillion in tokens? [duplicate]

I looked up 0x0000000000000000000000000000000000000000 on Etherscan, and realized that the address holds a lot in ERC tokens. While the ETH balance (about 7,549 ETH or about $841,000) isn't abnormal, ...

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