All Questions
21 questions
2
votes
1
answer
85
views
Issue with Smart Contract Interaction using Web3.js 4.2.0: TransactionRevertedWithoutReasonError on MetaMask and Sepolia Testnet
Problem Overview
I am facing an issue while interacting with a smart contract using Web3.js version 4.2.0. The specific method causing trouble is broadcastMessage(string), designed to store a string ...
- 141
1
vote
1
answer
71
views
Tracking the spedup transactions from metamask
while building a Dapp using metamask to make transactions, i figured that metamask is not responding correctly when a transaction is spedup, making my code wait forever for a canceled transaction that ...
- 3,058
1
vote
1
answer
571
views
How to prevent user to change recipient address when MetaMask transaction window pops up?
I want to integrate MetaMask as one of payment methods on my website.
The idea is to lock my content, when user made a successful ETH payment so the content will be revealed.
This is the source code:
&...
- 11
7
votes
2
answers
9k
views
How to sign transaction using web3.js via metamask
I'm trying to make a signed transaction in browser with web3 injected from metamask and send the transaction to my backend-server and then submit it to blockchain.
However, it's hard to find how I can ...
- 73
1
vote
1
answer
441
views
MetaMask showing 'transfer' method - How do I switch it to 'Smart Contract Interaction'?
I have a simple transaction set up to send 100 of my ERC20 token to a certain address. Please see the code below:
if (window.ethereum) {
await window.ethereum.request({ method: "...
- 33
0
votes
2
answers
5k
views
how to fetch private key of metamask account while transaction using web3.js
I have a problem,
What I want is to user to come at my website, from where he/she can connect to its metamask wallet account, after connecting I want them to allow to do transaction from some specific ...
2
votes
2
answers
1k
views
How does the MetaMask work with gas?
I have some web application based on Ethereum. This is how I call some function from a contract:
contract.doSomething.sendTransaction(data, {gasPrice: web3.toWei(10, 'Gwei')}, callback...);
This ...
- 259
1
vote
2
answers
882
views
I am having an error when I interact with my smart contract
first of all here are the codes
var web3 = new Web3(Web3.givenProvider);
var contractInstance;
var x = 0
$(document).ready(function() {
window.ethereum.enable().then(function(accounts){
...
- 61
2
votes
0
answers
2k
views
how to fix "MetaMask - RPC Error: The method 'eth_signTransaction' does not exist / is not available"?
I am learning how to use Web3.js and I am getting this error:
MetaMask - RPC Error: The method 'eth_signTransaction' does not exist / is not available.
When trying to sign a transaction (for later ...
- 231
5
votes
1
answer
2k
views
Signing transaction with Metamask (not sending)
I use the following code to sign and send a transaction in my backend:
var txData = {
nonce: nonceHex,
gasPrice: gasPriceHex,
gas: gasHex,
data: contractData,
from: ctx....
- 359
0
votes
0
answers
920
views
Web3js: How do you specify gas limit for transactions?
I'm running into some issues with metamask estimating the wrong amount of gas for a specific transaction for my Dapp. It needs around 130k gas to execute, but metamask (around 5% of the time) will set ...
- 111
0
votes
0
answers
96
views
Q: How can I fully handle wallets and transactions without any user confirmation?
I am attempting to create a messenger DApp for a small group of users. My goal is to avoid things like transaction signage popups and wallet funds by paying and signing everything for all users in the ...
3
votes
1
answer
727
views
MetaMask blocks Web3 requests
I just set up a Block Explorer to interact with my private blockchain.
The private Blockchain runs in a VM. The host system connects to the Block explorer (also on VM).
When I have meta mask ...
- 3,462
6
votes
2
answers
13k
views
Send transaction using MetaMask injected web 3
Metamasks injected web3 gives an error when using web3.eth.sendTransaction()
web3.eth.sendTransaction({from:web3.eth.accounts[0], to:'', data: // hash to interact with contraact, gas:85000});
What ...
- 157
1
vote
1
answer
534
views
How to get all kind of transactions happend to/from an address within a time range?
I'm trying to get all transactions that occured to an address within a specified time range. The transactions shall include all ethers as well as token transactions done to/from an ethereum address.
I ...
- 299
0
votes
0
answers
174
views
why the below error is thrown when doing transaction with metamask to the truffle
the error is thrown is shown in the below picture.While doing the transaction an error stating ethjs-rpc with payload["id:761..,Jsonrpc:"2.0","params":"0xf8..]
- 67
0
votes
1
answer
24
views
how to fail a ether transaction on blockchain (with insufficient balance)
Need to generate error cases for ether transfer to see how blockchain deals with these cases. But ethereum clients like metamask didn't allow sending ether higher than the balance. Tried the same with ...
- 103
0
votes
1
answer
368
views
Web3.js callback
I have a contract method:
function setFile(string fName, string fileHash) public {
File memory file = File({fileName:fName,fileHash:fileHash});
files.push(file);
return something;
}
Web3....
- 227
1
vote
1
answer
2k
views
JSONRPC error on sendSignedTransaction
I run ganache, truffle and metmask. If I run the code below I get an error on the this.web3.eth.sendSignedTransaction() function:
EDIT: changed my code to the following.. Error remained the same ...
- 689
2
votes
2
answers
5k
views
Batch transactions for MetaMask using sendAsync
I have MetaMask working nicely - it's so cool! However, I have a (react) form that gathers in lots of information and creates 14 distinct calls to sendTransaction. Hence, I (currently) get 14 popup ...
- 614
0
votes
1
answer
171
views
How to form the transactionObject in a metamask enforced async call?
Normally, for a contract call (i.e. something that does not update ethereum), I would simply do: var something = myContractObject.getSomething().
I've just started using metamask, and unfortunately, ...
- 614