Stack Overflow
Stack Overflow

Questions tagged [etherscan]

Etherscan allows you to explore and search the Ethereum blockchain for transactions, addresses, tokens, prices and other activities taking place on Ethereum

183 questions
2
votes
0 answers

How to verify TransparentUpgradeableProxy which is deployed using create2?

I have deployed an upgradable contract using a factory contract which its code is as fallows: bytes memory bytecode = abi.encodePacked( type(TransparentUpgradeableProxy).creationCode, abi.encode(implementation, proxyAdmin, "") ); assembly…
Navid Far
  • 41
  • 3
2
votes
1 answer

State of a smart contract updated, but no transaction listed on etherscan

I'm looking at a contract on etherscan and I can see that a variable has been updated, but looking at the list of transactions it doesn't seem that any transaction has modified the state. Let's take this transaction for example. We can see exactly 4…
Julian
  • 23
  • 4
2
votes
0 answers

What is the best way to view transactions on Hardhat?

Is there any UI similar to Etherscan or Ganache UI for debugging Hardhat transactions?
Arvind
  • 21
  • 3
2
votes
2 answers

Error in plugin @nomiclabs/hardhat-etherscan: The contract verification failed. Reason: Fail - Unable to verify (solidity 0.8.4)

I am newbie on solidity . trying to create NFT contract . I ve able to hardhat compile and deploy contract . however during verify my contract with arguments and I am getting this error: Error in plugin @nomiclabs/hardhat-etherscan: The contract…
brook18
  • 179
  • 2
  • 5
  • 12
2
votes
2 answers

How to transfer ETH on Rinkeby using ethers.js

Is there anybody who can help me with transfer ETH programmatically using ethers.js? I have some ETH on Rinkeby and want to transfer it to any address programmatically. Please let me know the address of ETH contract and how to transfer using…
Bikas Lin
  • 689
  • 5
  • 16
2
votes
1 answer

The entire Ethercan API call being printed in Flutter

I am trying to just get the "result" part of the API call response, but the entire call is being printed anyway. final balance = await etherscan.tokenBalance(address: myAddress, contractAddress: getAddresses()); print(balance.result); This is the…
ArtZab
  • 63
  • 6
2
votes
1 answer

Get the `functionName` called from an ethereum transaction

I'd like to display an ethereum transaction and include the methodName that was called. For example, this transaction's method was mint. Is there an API endpoint in etherscan or alchemy or infura that returns this information? Etherscan…
user2954587
  • 4,661
  • 6
  • 43
  • 101
2
votes
1 answer

Get a list of 'erc-20' Transactions By Address

I'm trying to get a list of ERC-20 transactions by address. I've tried Etherscan API it doesn't seem to have a url to accomodate. Here are the Etherscan APIs that are similar but do not accomplish the task: Get a list of 'Normal' Transactions By…
DefiBax
  • 37
  • 7
2
votes
1 answer

How to get informative data in smart contract with using API in R

I want to get informative data about the contract with using API. I found hash address with using Etherscan. I copied the contract to the R. But I don't know how to get informative data (such as balance, token info etc.) My screen look like this:
user12052358
2
votes
2 answers

Best way to download all historic Ethereum ERC721 transfers

I'd like to download all the transfer events of tokens under a given contract address. I know etherscan provides an API endpoint for this, however it is limited to the latest 10,000 transfers (even if paginating).…
BarefootDev
  • 326
  • 3
  • 9
2
votes
1 answer

How to get Ethereum token holders amount history and analysis daily

I wanna to create a chart diagram for analysis token holders amount history, for example: holders amount ▲ │ ┌───── │ │ │ │ │ │ │ ┌──────┘ │ │ │ │ │ ┌─────┘ │…
Moon soon
  • 2,616
  • 2
  • 30
  • 51
2
votes
3 answers

is there any other way to interact with Ethereum's smart contracts via UI besides Etherscan?

I'm aware of Etherscan's capability for interactions with smart contracts on the Ethereum network, but I wonder if there is any other way to read and write from smart contracts. I'd expect an improved UI/UX usability, allowing input validation,…
Tom Keidar
  • 21
  • 2
2
votes
1 answer

How to get data regarding random smart contract addresses. Such as creation date, chain, holders (how many wallets are holding)

Basically, the node.js or javascript function will pull data from ETH or BSC scan using web3 or whatever, analyze it and display by the following steps: System will take the smart contract address of the ETH or BSC chain. The system will find…
Haider Yaqoob
  • 1,725
  • 2
  • 11
  • 17
2
votes
1 answer

Web3j: Get value of transaction token transfered using Transaction Hash

With Web3j (not Web3js), how do I get the value of token transferred using transaction hash?
Azrulm
  • 23
  • 6
2
votes
1 answer

how to swap Token for ETH with swapExactTokensForETH() using UniswapV2Router02 Contract

i'm traying to swap some DAI for ETH on the Ropsten Network using the UniswapV2Router02 on Etherscan (Ropsten Test Network). DAI Address on Ropsten = 0xad6d458402f60fd3bd25163575031acdce07538d WETH = 0xc778417E063141139Fce010982780140Aa0cD5Ab in my…
korchix
  • 1,445
  • 1
  • 19
  • 22
1
2
3
…
12 13