Ethers.js is a JavaScript framework to interact with EVM smart contracts.
More information on ethers.io.
Questions tagged [ethers.js]
801 questions
5
votes
2 answers
How to aggregate multiple smart contract function calls on Rootstock?
I have multiple ERC20 tokens, deployed on Rootstock,
and I want to track their balances and allowances in a real time from my DApp.
In ethers.js,
I can track their balances by alternately calling the functions
balanceOf(address) and allowance(owner,…
bguiz
- 27,371
- 47
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5
votes
1 answer
How to connect to custom Provider using ethers?
How do you create a new Provider using a custom node url using the ethers package?
Looking to do something like this:
const provider = new ethers.providers.Web3Provider('http://my-node.com')
cormacncheese
- 1,251
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- 13
- 27
5
votes
7 answers
Error: could not detect network (event="noNetwork", code=NETWORK_ERROR, version=providers/5.6.8)
I want to connect to ganache and I get an error that I don't know how to solve it. here is my deploy.js code which is script node.js
const ethers = require("ethers")
// const solc = require("solc")
const fs = require("fs-extra")
…
Paweł Stach
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5
votes
1 answer
Why does an event emitted by a smart contract function called via `delegateCall` disappear?
I have two interacting smart contracts that I am developing/testing in Hardhat and deploying to RSK:
DelegateCallee smart contract with a getData() function, emitting a Received event:
contract DelegateCallee {
event Received(address sender,…
Aleks Shenshin
- 2,117
- 5
- 18
5
votes
2 answers
How to decode bytes calldata in a smart contract?
I have 2 interacting smart contracts which I am developing/testing in Hardhat and deploying to RSK. One of them is an ERC1363 payable token with transferAndCall(address,uint256,bytes) function, and the second one is a token receiver whose…
Aleks Shenshin
- 2,117
- 5
- 18
5
votes
2 answers
How to test the Solidity fallback() function via Hardhat?
I have a Solidity smart contract Demo which I am developing in Hardhat and testing on the RSK Testnet.
//SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.0;
contract Demo {
event Error(string);
fallback() external {
emit…
Aleks Shenshin
- 2,117
- 5
- 18
5
votes
1 answer
Is it possible to top up smart contract's balance at the time of its deployment?
Say I have a Solidity smart contract MultiToken.sol which I am developing and testing using Hardhat and deploying to the RSK network.
//SPDX-License-Identifier: Unlicense
pragma solidity ^0.8.0;
import…
Marcos Irisarri
- 61
- 3
5
votes
1 answer
How to verify message in wallet connect with ethers primarily on ambire wallet?
I am trying to sign a message with wallet connect using ethers, but I am facing an issue when verifying the message with ambire wallet, it's not returning any response.
const signMessage = async () => {
try {
console.log("started");
…
divyan
- 59
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- 3
5
votes
0 answers
Type error when passing web3provider as a prop with typescript
I'm trying to pass a Web3Provider as a prop to a hook with others, and I keep getting an error
Here's the code of how I get the provider
const provider = new ethers.providers.Web3Provider(window.ethereum)
Then I have inside the return…
Fab
- 61
- 6
5
votes
1 answer
How to decode transaction input data using `ethers.utils.defaultAbiCoder`
I'm fetching transaction data using Etherscan API. This is the example result I'm getting:
{
blockNumber: '7409930',
timeStamp: '1639151980',
hash: '...',
nonce: '4124',
...
input:…
Jan Potočnik
- 51
- 1
- 2
5
votes
3 answers
MetaMask - RPC Error: execution reverted {code: -32000, message: 'execution reverted'} while trying to connect to smart contract
I have deployed a smart contract on a public testnet and now I am trying to connect to it from the front end using ethers js. But when I try to fetch the value it gives the following errors in the console:
I am using Angular for the front end and…
Vivek
- 193
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- 3
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5
votes
1 answer
Implementing Ethereum personal_sign (EIP-191) from go-ethereum gives different signature from ethers.js
I am attempting to generate a personal_sign in Golang like its implemented in ethers.js. Similar question but that ended up using the regular sign over the personal sign_implementation.
Ethers
// keccak256 hash of the data
let dataHash =…
Franco
- 848
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- 24
5
votes
1 answer
How to define an array of structs return type in ethers.js ABI
Currently I got this abi:
const stakingAbi = [
'function getStakes(address user) external view returns (Stake[] memory)',
'function stake7Days(uint128 _amount) external whenNotPaused',
'function stake14Days(uint128 _amount) external…
Thimma
- 1,343
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5
votes
2 answers
How do I listen to events from a smart contract using ethers.js contract.on() in a node.js application?
I'm trying to listen to events emitted from the USDT contract Transfer function using ethers.js (not web3) in a node.js application.
When I run the script, the code runs with no errors and then quickly exits. I'd expect to get the event logs. I'm…
Richard Vartan Melkonian
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4
votes
1 answer
How to resolve intermittent "nonce has already been used" error when deploying multiple smart contracts to Hedera Testnet?
When I deploy 2 smart contracts at the same time to Hedera Testnet,
I get the following error:
nonce has already been used [ See: https://links.ethers.org/v5-errors-NONCE_EXPIRED ]
This occurs intermittently, roughly about 20% of the time.
Their…
bguiz
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