Questions tagged [transactions]

The term "transaction" is used in Ethereum to refer to the signed data package that stores a message to be sent from an externally owned account.

474 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
7
votes
1answer
457 views

eth.gasPrice is returning less value than expected

As mentioned in documentation eth.gasPrice returns the current gas price. The gas price is determined by the x latest blocks median gas price. I was relying on this method to estimate current gas ...
7
votes
2answers
547 views

Submitted transaction not propagated to all nodes

I have a private ethereum blockchain network running set up in 3 nodes using geth. If i submit a transaction(smart contract function call) to one node and go to another node and type in eth....
6
votes
1answer
2k views

Etherscan: Effectively paginate `Event Logs` result

I am using Etherscan API for various Ethereum details. I need to find out the tokens transferred from a token original contract (let's say A) address to a particular address(let's say B). For this ...
5
votes
1answer
150 views

Receive deployed contract address by transaction hash with JSON-RPC request

I want to receive deployed contract address by transaction hash. Transcation example - 0x996a683acd59a2ad17461f76ce0f387a89a5ac257ec5d667556219c6acc7f45a. As you can see this contract was deployed by ...
4
votes
0answers
371 views

What is the current size of the Ethereum State?

What is the current size of Ethereum's state in bytes? I am not asking about the size of the blockchain with blocks headers, transactions and receipts. I am looking for the size of all the structure ...
4
votes
0answers
114 views

Autorefill isn't working on Improved Coin code

I've been trying to write a token contract with the autorefill function, but perhaps the code for the token example on the ethereum website is somewhat outdated, because it isn't working. Did anybody ...
4
votes
1answer
922 views

Events not being detected in Nethereum

I have a function in one contract that looks like this: //Events event RequestReceived(bytes s); event WorldCreated(bytes32 indexed worldName, address indexed sender, address result ); ...
4
votes
0answers
512 views

Managing multiple Ether addresses in one contract?

Although I have a background in Bitcoin (creating the WLOX exchange platform), I am completely new to Ethereum. I am trying to find a way to manage multiple accounts/addresses as a pool to (1) be ...
4
votes
0answers
212 views

What is the correct value to report for input data in this context?

On this transaction: https://etherscan.io/tx/0xae2630cdfbd0ca5292d272343c35dc8094365f2ecdc5c262c5639e79683f74dc, the input data is parsed and displayed as 'fund'. This is both correct and incorrect. ...
4
votes
0answers
76 views

Will forthcoming ability to make transactions private hide gas usage and mining information?

I understand that people are working on allowing for more private transactions on the public Ethereum mainnet. This would involve hiding (at the very least) the from, to, value and probably input ...
4
votes
1answer
2k views

Mist, transaction “couldn't be successfully executed”

For some reason I can't send transactions from my Mist wallet. I'm running the newest version (0.8.7). When I send a transaction, after a couple of minutes I get the message that the transaction "...
4
votes
0answers
87 views

Can I get a list of all transactions that are sent to a particular contract on Eris?

Can I get a list of all transactions that are sent to a particular contract on Eris? I see that there's a similar solution for the Ethereum API. How can I get a list of of transaction data which are ...
3
votes
1answer
35 views

Do miners undergo a sunken cost of attempting to verify an invalid transaction signature?

In the case of an 'invalid' transaction whereby the state transition of the execution is deemed to conflict in some way and reverts, the transaction itself is actually valid; gas is consumed, tx ...
3
votes
0answers
36 views

Why using Merkle Patricia trie for keeping transactions and receipts instead of Merkle trie?

Using Merkle Patricia trie for keeping Ethereum states has the advantage of fewer changes in the data structure during the updates in the states compared to Merkle trie. But what is the advantage of ...
3
votes
0answers
40 views

How do I check transaction status using go-ethereum simulated back-end?

Using the go-ethereum simulated backend, I would like to: 1) Instantly commit a transaction so that it either succeeds or reverts in a given simulated blockchain. So far I'm using sim.Commit() to ...
3
votes
0answers
97 views

Get proof that a transaction was included within a block

I see that the web3 api has the getProof method: https://web3js.readthedocs.io/en/1.0/web3-eth.html#getproof My question is - is there a similar way to get (and verify) a proof that a transaction x ...
3
votes
0answers
259 views

The sendSignedTransaction function does not activate the on('receipt') event at an appropriate time

console.log(transacting...); web3.eth.sendSignedTransaction('0x' + serializedTx.toString('hex')).on('receipt', receipt => { log(receipt); log(`https://ropsten.etherscan.io/tx/${receipt....
3
votes
2answers
172 views

is it possible to get events from transactions that are in the `txpool`?

Is it possible to see the events that will be emitted in the txpool, or is only the transaction information available? For example, can I search in either the queued or pending transactions and ...
3
votes
1answer
57 views

Is it possible to check the Thrid party token ( USDT ) within my ERC223 contracts?

I want to check how many tokens are received in my contracts, so that I am able to allocate MY TOKENS to the TOKEN Sender. I tried several ways like approveAndCall, but its not working. I don't ...
3
votes
1answer
266 views

Create Accounts Using Web3.js in Browser

TL;DR - Replicated Ethereum Blockchain. Running Local Node. Connecting Local Node to Web3.js in browser using RPC. Want to create addresses & send transactions Details - I have a blockchain that ...
3
votes
0answers
74 views

Storing Private Keys in IoT Devices

In a network of IoT devices like internet-connected Raspberry Pis which sends transactions to the Ethereum blockchain, the Pis need to be able to access their own Ethereum private keys in order to ...
3
votes
2answers
65 views

Why does confirm that there is always 1 block apart on the mainnet when initiate multi-transactions simultaneously- by web3.py and Infura.io

1.I have a need to initiate multiple transactions to the same contract address in the fastest time and get confirmation from the network. Means that multiple transactions are recorded in the same ...
3
votes
1answer
166 views

UTXO vs Account scalability paradigms and Merkle proof of ownership

From Ethereum's design rationale: Potential scalability paradigms: UTXOs are more theoretically compatible with certain kinds of scalability paradigms, as we can rely on only the owner of some coins ...
3
votes
1answer
504 views

Pending transactions are not mined

Preconditions I'm running a private network with Geth, having custom smart contracts deployed by Truffle and a simple frontend which using Metamask as a provider to connect the network. Versions ...
3
votes
0answers
421 views

how to send transaction with geth running in light mode on testnet

I am having troubles to sendTransaction with geth running in light mode. Startup: geth --testnet --syncmode "light" --rpc --rpcport 10001 --rpccorsdomain "*" --rpcaddr 127.0.0.1 --datadir /opt/...
3
votes
0answers
2k views

How to send transaction with web3.eth.sendTransaction?

I am sending ether by using web3.eth.sendTransaction. But when I send, there is error: Failed to check for transaction receipt: web3.eth.sendTransaction({ from: base_address, to: withdrawer, ...
3
votes
1answer
161 views

Creation of a whitelist in a private network with Rinkeby Clique PoA?

I'd like to create a private network where I would limit the creation of smart contracts to a whitelist of accounts. Is there any option for this?
3
votes
0answers
236 views

Did f2pool manipulate transactions during the Status ICO?

Blocks such as this one and this one appear to show preferential treatment being given to f2pool transactions in blocks mined by f2pool during the beginning of the Status ICO (at block height 3903900)....
3
votes
0answers
460 views

Validators in POS

note: Simple, layman, language would be highly appreciated! Hello, So, what would a 'validator' (after switching from PoW to Pos on Ethereum) actually, do? Specifically? Would he be required to ...
3
votes
0answers
98 views

Is it possible to stack transactions?

Is it possible to stack transactions which depend from themselves? Example: State on start: Account A (2 ETH), Account B (0 ETH), Account C (0 ETH) Transaction 1 - Account A sends 2 ETH to Account ...
3
votes
0answers
226 views

Can a contract keep track of sent transactions?

Let's say I have a contract with a "withdraw" function. Now someone calls this withdraw function, resulting in the contract doing something like receiverAddress.transfer(amount). Now I would like to ...
3
votes
0answers
1k views

etherwallet-3.4.2 on private chain invalid sender error

In order to use etherwallet in private chain setup, I completed following Use Your Own Server Guide, answer_1 and answer_2. I have added Custom Node and MyEtherWallet works , except sometimes it ...
3
votes
0answers
323 views

not able to mine transactions generated on remote node

i have connected two nodes locally on my private testnet using admin.addPeer() I0829 16:33:25.280649 eth/downloader/downloader.go:320] Block synchronisation started I0829 16:33:27.187839 core/...
3
votes
0answers
32 views

Splitting funds - How to do it quickly (synched TX)?

Changing blockchains and synching with Mist is a slow and hacky process so I wondered if there's a more immediate way. The idea being : transfering funds from my duplicated accounts to new and unique ...
3
votes
0answers
62 views

Effectively debugging pyethapp

I have also asked the technical details of pyethapp's use of gevents here. I'm trying to run a transaction step by step in a debugger and see how it is being signed and added to the blockchain. I am ...
3
votes
2answers
910 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 ?
2
votes
0answers
47 views
+50

Calculating Gas Fees with ETH

How are gas fees calculated in account based model coins like ETH? Let's say I own 10 ETH addresses with 0 starting balance. I receive 0.1 ETH payment from 10 people - each one sending a payment of 0....
2
votes
1answer
41 views

Ethereum transaction giving error 'invalid sender'

This is how my contract looks like - pragma solidity >=0.4.25 <0.8.0; contract Calculator { uint public result; event Added(address caller, uint a, uint b, uint res); constructor()...
2
votes
0answers
55 views

How to know the reason of transaction's reversion in parity?

I am testing ERC20 USDT contract locally with parity. I imported contract to my private testnet and manually generated raw transaction that calls "transfer" method of contract. I send it to the node ...
2
votes
2answers
87 views

How can I find the block where a user enacted a certain event on a contract?

I'm trying to build a web3.py program to take in a given user's address, and return the amount of ETH traded since they added liquidity to a Uniswap exchange. Uniswap is a smart contract on the ...
2
votes
2answers
97 views

To transfer tokens from owner address to an address, if latter address moves some other tokens to a given particular address

I am writing a contract for an ERC20 token (say ABC). Is it possible to airdrop some of these newly minted ABC tokens to those ERC20 addresses, every time, if they transfer a different token (named ...
2
votes
1answer
160 views

Can I send data (e.g. text) in a Transaction with Web3J?

I need to send a transaction from an account to another one via Web3J that includes not only the value field but also the data field (in particular, I need to send text). Is it possible?
2
votes
1answer
138 views

How to retrieve transaction hash value from the Promise object using web3js?

I'm trying to retrieve the transaction hash value after I call my smart contract method. My Promise object looks like below. returnPromise: Promise { "pending" } ​ <state>: "...
2
votes
0answers
16 views

I am sending some ether from account[0] to account[1] using geth console. But the amount is not getting added to the receiving account

I tried to mine the transaction using miner.start() command, still account balance remains the same > miner.start(8) I0428 16:27:15.927553 miner/miner.go:136] Starting mining operation (CPU=8 TOT=...
2
votes
0answers
325 views

Signed transaction vanishing from testnet (Kovan & Rinkeby)

I've been attempting to broadcast transactions to both Kovan & Rinkeby, I'm building and signing them offline and using the Etherscan API to broadcast the signed transactions. I see them in the ...
2
votes
2answers
195 views

Invalid Sender when Using Quorum

I followed this tutorial (https://github.com/jpmorganchase/quorum/wiki/From-Scratch) to start up Quorum with 4 nodes using istanbul consensus. The nodes can connect and blocks are being generated but ...
2
votes
0answers
59 views

Automatic sign of Transaction

Is there any secure solution(without exposing a Private key of the user) to automatically sign transactions, which are requested from a DApp, so that user doesn't have to sign each of them manually? I ...
2
votes
1answer
209 views

Is it possible that Ganache can handle a private key without an “0x” prefix, but Parity cannot?

I am trying to sign and send a transaction as follows: let signedTx = await web3.eth.accounts.signTransaction(options, PRIVATE_KEY); let txReceipt = await web3.eth.sendSignedTransaction(signedTx....
2
votes
1answer
79 views

Accessing non-active account on metamask

I want to transfer ownership of an already notarized file with a particular address. I am using smart contract and representing ownership by "msg.sender" i.e. selected account in metamask is the ...
2
votes
1answer
185 views

Transmit array as first parameter in web3.js

When I develop in solidity combined with web3.js, I face some problem recently. I create a contract code below //setContractDetail(index,bool isConsentItem,uint8[] detailItems) function ...

1
2 3 4 5
10