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.

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votes
1answer
313 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
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1answer
413 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....
4
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0answers
125 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 ...
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0answers
315 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
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0answers
105 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contract with the autorefill function, but perhaps the code for the token example on the ethereum website is somewhat outdated, because it isn't working.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
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1answer
731 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
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0answers
448 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
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0answers
202 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
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0answers
73 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
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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
2answers
139 views

What do the strange tiny transactions executed at the same time during the ICO mean?

Exploring InChain ICO smart contract transactions. Smart contract address is 0x162ac26e2f0fe036c3a3d370c118de0b6c883083 There are many tiny amount transactions executed at the same time. Like this, ...
4
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0answers
85 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
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0answers
180 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
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2answers
81 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
41 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
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1answer
192 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
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0answers
56 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
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2answers
37 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
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0answers
242 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
1answer
150 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
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0answers
203 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
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0answers
95 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
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0answers
221 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
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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
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0answers
319 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/...
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0answers
31 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
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0answers
60 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 ...
2
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2answers
38 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
31 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
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0answers
12 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
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0answers
93 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
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0answers
43 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
221 views

Is there any simple explanation to multisig wallets?

I read on ConsenSys and Ethereum MultiSigWallet. I got that "The purpose of multisig wallets is to increase security by requiring multiple parties to agree on transactions before execution. ...
2
votes
1answer
90 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
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1answer
220 views

Remix: Gas required exceeds allowance or always failing transaction

I have a contract which has transferFrom function mapping(address => uint) balances; mapping(address => mapping(address => uint)) allowed; mapping (address => bool) public ...
2
votes
1answer
90 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 ...
2
votes
1answer
165 views

Invalid transaction signature on sending transaction

Hello guys I'm having a "Invalid transaction signature." error. Can't get pass this one. Am I missing something? client, err := ethclient.Dial("path/to/geth.ipc") if err != nil { return err } ks :...
2
votes
1answer
271 views

Do all Ethereum addresses have a specific format?

I know all ethereum addresses start with 0x, but is there a common letter/number after the 0x to represent an address? Because I get confused on how to tell if its an Eth address or if its a ...
2
votes
1answer
228 views

Where can I find failed transactions?

Couple of test transaction in the Rinkerby network failed due to insufficient gas during execution. I assumed that these transaction where failed since I was not able to find them on the pool or queue....
2
votes
1answer
298 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 ...
2
votes
1answer
396 views

How to calculate Estimated Confirmation Duration of a pending transaction?

How I can calculate Estimated Confirmation Duration or Can someone give me a formula to calculate Estimated Confirmation Duration of a pending transaction like etherscan.io do?
2
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2answers
2k views

How to get transaction failed reason with transaction hash with web3?

I'm trying to get transaction failed reason with transaction hash with web3? I have checked getTransactionReceipt() method { blockHash: '...
2
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4answers
626 views

Tracking tokenholders of a token with web3

If I have a token address how can I navigate and find certain things like: tokenholder addresses transactions for the token holders including when they made the transaction I'm new to smart ...
2
votes
0answers
285 views

Account balance not updating

I tried to start a private ethereum testnet on my laptop. Then created 2 accounts and did transaction from the 1st account to the 2nd one.But he balance is not updating in the 2nd account. Here are ...
2
votes
0answers
241 views

withdraw eth from contract

I have contract and function which accepts ether. How can I transfer ether from contract to any other wallet? I'm using ganache-cli. Function work, and I spent 10 eth on contract(private network). ...
2
votes
0answers
1k views

Web3 - how to send transaction with some data and include Ether at the same time?

Using web3 0.20.3 I want to call function and send some Etherium at the same time. JavaScript Contract = web3.eth.contract(ABI); Instance = Contract.at('0x162b74ea16da6ae9d7f7b349eaeab2fcadf4e835')...
2
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1answer
317 views

Why can't the return value of a transaction be included in the transaction receipt?

Shouldn't this be possible as the return value will be known when the receipt is created?
2
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0answers
116 views

Tracking orders on 0x network

How are the various 0x network order trackers sourcing on-chain settlement data? My first assumption was that they were utilising the Etherscan API, however Etherscan have their own tracker, found at ...
2
votes
1answer
88 views

Exchange messages between two clients of Dapp without spending gas?

Let's say that I want to build a Dapp such that users can exchange messages between each other. I guess you can consider it a chat Dapp. Is there any way for the two users to find the "address" of ...
2
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0answers
172 views

Check if transaction is valid in blockchain

Can you receive invalid blocks/transactions when syncing via geth? If so, how to make sure that received transaction is correct? Is checking status from eth.getTransactionReceipt() enough?