New answers tagged ethers.js
0
votes
Sending hundreds of transactions every minute, TXs seem to get randomly stuck in mempool even after setting high gas
First of all, I'm wondering what you are building because it sounds potentially toxic but putting that aside....there is an annoying thing on web3 where if one transaction from an address gets stuck ...
- 41
0
votes
Ethers js deploy contract with balance, payable constructor
Here is a snippet if you are using ethers.js v6
const initialBalance = ethers.parseEther("0.1");
const myContract = await ethers.deployContract("MyContract",{value: initialBalance})...
- 1
0
votes
Create a new Erc20 contract through Ether.js
@Mehran Ra's code doesn't seem to work in my case. Specifically you the provider line didn't work for me. Adjusted the code would look like this:
const { ethers } = require('ethers');
const ...
- 101
0
votes
typeError: Cannot read properties of undefined (reading 'format')
TypeError: Cannot read properties of undefined (reading 'format')
the variables are either undefined or not formatted proparly for the function to interpret the arguments.
I think the problem either ...
- 21
1
vote
React (opts:) not working, am i missing dependency?
That version of Web3Modal doesn't work any more and has been deprecated. Try v3 check docs here: https://docs.walletconnect.com/web3modal/react/about?platform=ethers
- 11
0
votes
ethers.js version 6: TypeError: wallet.getTransactionCount is not a function
In addition to Ali's answer, wallet in this case is a Signer.
From the docs, getNonce:
Gets the next nonce required for this Signer to send a transaction.
0
votes
CALL_EXCEPTION in estimateGas with local ganache
I was using a newer version of solc and was seeing the same error. To fix:
yarn remove solc
yarn add [email protected]
Recompile contract and deploy
0
votes
in cloud window.ehtereumundefined,in local window.ehtereum is object
The RPC provider window.ethereum is injected by the browser using wallet extension or its own implementation.
When running as a service outside a browser the object window doesn't exists. To access ...
- 31k
1
vote
What is the best way to fetch and store data from ethereum blockchain for migration of contracts?
With 0xweb tool you could dump the contracts storage first. It collects all the contract state variables from the source, so the contract must be validated on a block explorer, or if you develop ...
- 1,979
0
votes
Calling Gnosis safe's propose transaction (safeService.proposeTransaction) gives Unprocessable Entity error
Try to set value as as a string. Like this:
const data1 = {
to: tocks,
data: "...
- 167
0
votes
Ethers is not decoding the indexed parameters
If you're seeing an error Interface is not constructor, it might be worthwhile to check for any typos or mistakes in the const iface = new ethers.Interface(abi); line of the solution (maybe 9th line).
...
0
votes
ERC-20 token approval fails if amount is close to maximum balance
You seem to assuming the gas cost is always the same, but it isn't. Besides the cost of the transaction execution (which can vary for reasons like changing from/to zero and refunds, but not in your ...
- 281
1
vote
If blockhash changes, did block become uncle?
Uncles were only in Ethereum's early years when it was using Proof of Work.
In Ethereum's Proof of Stake, when a block is replaced by another block, the common case would be called an orphan block. ...
eth♦
- 85k
0
votes
Error: factory runner does not support sending transactions (operation="sendTransaction", code=UNSUPPORTED_OPERATION, version=6.7.1)
Your hardhat.config.js:
accounts: [`0x${PRIVATE_KEY}`],
plural 'accounts', not singular 'account'
0
votes
How to fetch events emitted in a deployment transaction using ethers JS?
Following code will do your work
const { ethers } = require("ethers");
const ABI = <Contract ABI>
const rpcProvider = new ethers.JsonRpcProvider(
<rpc url>
);
async function ...
0
votes
Estimate gas price with ethers.js
Firstly, I'd like to say that the third top answer and second top answer are correct but vague. The top answer also implicitly relies on the use of a Contract and a DefaultProvider which is not ideal ...
- 1
1
vote
Cannot read properties of null (reading 'constructor') Etherjs error
Just change in the second line to const contract = new ethers.Contract so you'll call class constructor.
And no need in await on second line as constructor in synchronous
- 181
1
vote
Now that eth_decrypt and eth_getEncryptionPublicKey are deprecated, is there a good way to encrypt and decrypt data via a user's private key?
I'm not sure if it's the same way you me but I was using metamask for something like this before, but it's not suggested anymore. Also metamask deprecated its related method. The main reason is that ...
0
votes
Gas estimation errored with the following message (see below). The transaction execution will likely fail. Returned error: invalid opcode
You can only test in Goerli or Sepolia. In remix, importing the openzeppelin library requires your compiled version ^0.8.20; while most bsc or other Ethereum compatible chains are not yet compatible ...
- 391
0
votes
Accepted
Uniswap - swap between Sepolia and my own erc-20 token
get provider in ethers v6:
const provider = new ethers.JsonRpcProvider("");
get provider in ethers v5:
const provider = new ethers.providers.JsonRpcProvider("");
- 391
0
votes
Gas estimation errored with the following message (see below). The transaction execution will likely fail. Returned error: invalid opcode
There may be other issues, but the first thing that pops out to me is an array out-of-bounds issue.
If you try to access (read or write) to an index in an array that is larger than the arrays length, ...
- 11.9k
0
votes
Verify signature result return 0x
The return signature result from signMessage method being 0x typically means that the signing operation failed or was cancelled by the user.
If the user cancelled the operation, you might want to ...
- 194
0
votes
Why I can't get meta data of USDC in ethereum?
The contract address you provided 0xa2327a938febf5fec13bacfb16ae10ecbc4cbdcf is not the official USDC contract (at least until my knowledge cutoff in September 2021), which could be a reason for the ...
- 194
0
votes
Why I can't get meta data of USDC in ethereum?
Yes calling the implementation contract won't give you the values, because it is there to extend the functionality of the proxy contract, in the context of the proxy contract's storage.
All the ...
- 166
0
votes
Accepted
How to encode param of type address
This is what worked for me. I don't really have some reference from some documentation or anything, but I got to this solution based on some recent working examples of code for similar use cases.
...
- 145
1
vote
How to encode param of type address
These are scripts I tried.
(I think it's not ideal to continue the exchange here multiple times, so I'll present this source code and conclude my remarks. I apologize if it doesn't get resolved.)
In ...
0
votes
How to encode param of type address
How about remove (address) from 1st parameter ?
const selector = contract.interface.encodeFunctionData(
"removeRes", // <--- change here.
[contractAddress],
);
0
votes
How to handle wrong chain error [Infura, Wagmi, React, Typescript]
provider = new ethers.InfuraProvider('sepolia', infuraApiKey);
...
//in your React/NextJs:
const { chain, chains } = useNetwork();//from Wagmi
if (chain.name.toLowerCase() !== expected_blockchain....
- 1,764
0
votes
How do I obtain a signer object from a named account address in a Hardhat project?
To obtain a signer object from a named account address in a Hardhat project with the hardhat-deploy plugin, you can use the ethers.getSigner method, which is designed to work with the addresses of the ...
- 1,418
0
votes
Accepted
Infura Ethers.js jsonrpcprovider failed to detect network and cannot start up
I have solved this with Ethers.js 6.8.0 and Infura:
network = "sepolia"
infuraApiKey = '1234...'
provider = new ethers.InfuraProvider(network, infuraApiKey);
InfuraProvider() does not ...
- 1,764
0
votes
Can anyone help me to solve this error (TypeError: contractInstance.isComplete is not a function)?
This is a type error which means that the contractABI you're using doesn't have that function. Apparently, you're using an older ABI. try recompiling the contract and replace the ABI
- 33
1
vote
Accepted
What is the best way to fetch and store data from ethereum blockchain for migration of contracts?
My approach :
What I did for now is, fetch the desired events using ethers js queryFilter, then store those in the form of an array in a JSON file by converting them into Objects.
Now I can read the ...
- 2,180
2
votes
Unable to fetch events using Ethers js
My bad.
The deployed contract was an old contract, containing only two parameters in the event, but the instance I was creating had three parameters, producing a wrong filter for the event.
- 2,180
1
vote
Unable to fetch events using Ethers js
The contract hasn't emitted that event yet. The only functions called so far is the createChannel. Try calling updateChannelMeta which emits the UpdateChannel event.
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