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Questions tagged [gas-price]

Questions dealing with the gas price of a transaction.

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0answers
20 views

How can we increase block gasLimit without reinitialiting the genesis block? [duplicate]

Is it possible to increase block gas limit without reinitializing the blockchain ?
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1answer
15 views

What makes a transaction not mined and stay in txpool?

What Makes a transaction in txPool not mined ?
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1answer
13 views

What is the unit for the tx.gasprice?

Is it a wei, kwei, mwei, gwei, ... Something else? The API doesn't say much.
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11 views

How to use oraclize fee from contract balance instead of sender's wallet? [duplicate]

I am using oraclize query. I have a function that user's invoke but I dont want users to pay the gas fee for oraclize query, I want that fee to be paid by my contract balance, and if my balance is not ...
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0answers
20 views

Is Gas consumed in boolean operations that do not change contract state?

Imagine I've created a voting contract, and I'm the owner of this contract. I'm going to deploy it and create a front end to interact with it. Within my contract i've everything secured to add ...
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2answers
48 views

How to reduce the gas price for complicated smart contracts?

This is my smart contract's calculateReward function: function calculateReward(uint256 _amount, address _sender) internal view returns (uint256) { uint256 reward = 0; for (uint256 i= ...
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1answer
30 views

Apparently some people send transactions with zero gas and positive gas limit, how do they do this? (and I am NOT planning to this but how)

Have a look at this transaction for example: https://etherscan.io/tx/0x11d96986d36240a5e5e7eab78879aa841631705370e707f15f1488a0b9d6704a 0 gas, 0 ether but plenty of tokens transferred. Obviously the ...
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0answers
14 views

How can I distribute funds to present stakers efficiently?

I am building a smart contract which keep the token holder's eths for a while and give them rewards when they withdraw. The reward is given from the ethers collected by early withdraw of people. If ...
1
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1answer
37 views

How can I reduce the gas price for the fallback function?

Below is my fallback function for ethereum. It currently require 91000 gaslimit which is way more than 21000. Metamask always starts the transaction with 21000 gas stipend due to which transaction ...
0
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1answer
101 views

Ethers js estimate gas offline?

Looking here in the docs it mentions I need to have the provider attached to estimate gas. But for formatting a transaction offline, I dont have access to the provider. Is there a way to estimate the ...
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1answer
21 views

GAS price validation for transactions in OLD blocks

How does Ethereum verify GAS price stated within transaction, to be high enough for transactions stored in past blocks? Does each block include an average GAS-bid experienced by miner at the moment ...
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0answers
40 views

How Geth classify transaction as local or non-local? txpool validateTx skips gasPrice validation for local transactions

I see geth code skips the validation of the local transactions https://github.com/ethereum/go-ethereum/blob/master/core/tx_pool.go#L528 // Drop non-local transactions under our own minimal accepted ...
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1answer
25 views

What are the parameters for the ideal gas limit?

I am new to writing smart contracts, in recent times I am having trouble in deploying the smart contracts couple of times so I need a solution for that. I am using the truffle most of the time so ...
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2answers
23 views

Sending ethereum smart contract transactions to miners

We are building a decentralized document issuance application using the ethereum blockchain. For every transaction, some gas costs deduced in the form of ether. Is it possible to host ethereum miner ...
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2answers
37 views

Does price of smart contract execution raise with price of ethereum

I can't determine properly whether higher price of ETH means smart contracts will also cost higher(in fiat not eth) and is it reciprocal, like if we have a SC deployed and eth price raises 10x, will ...
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1answer
24 views

Different between gas and gasLimit keys when executing transactions

Below is the code that I'm running. When I entered "gas" and "gasLimit" as the keys, both worked. Why is that? What does "gas" represent? And what is the optimum amount of gasLimit should I use (...
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0answers
28 views

Gas usage difference between Remix and Ganache/public networks

I'm trying to integrate a contract into a front end with MetaMask and getting different gas amounts depending on the network and compile options I use. Remix ("Enable Optimization" checked): 90,410 ...
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0answers
21 views

Most precise website to estimate gas price for volatile days

I am trying to understand which website is the best way to estimate the gasprice for volatile days. There are some sites but they do not work out so well on a volatile day like today. I compared and ...
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2answers
33 views

Effective way to compare to arrays

What is the most cost effective way to compare to arrays eg. uint arrays in solidity. Running a for loop takes too much gas.
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1answer
16 views

How much gas does looking up block.timestamp consume?

Trying to get some insight as to whether or not it's more optimal to call block.timestamp repeatedly for comparisons or to set a (memory) variable to hold the value and use it instead. I've looked at ...
5
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1answer
101 views

Why does gas cost explode with more than 7 variables in a struct

I'm assuming this has to do with Ethereum's 7 variable stack limit but in the following code test struct TestStruct5 { uint8 m_nOther1; uint8 m_nOther2; uint8 m_nOther3; uint8 ...
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1answer
37 views

Does ERC-20 balanceOf function cost no gas?

Given that this is a sample balanceOf function code: function balanceOf(address tokenOwner) public view returns (uint balance) { return balances[tokenOwner]; } and this function is view function,...
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0answers
43 views

Issue in setting GasPrice when sending raw transaction

I am using web3 and infura node to send my raw transaction but I am having difficulty in setting gasprice. I constructed rawtransaction as follows web3js.eth.getTransactionCount(myAddress, 'pending')...
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1answer
64 views

What is the meaning of “Gas Used” on ethgasstation.info?

It's rather confusing cos when I googled "gas used" I don't get any exact result, NOT even from ethgasstation.info and most people are talking about transaction price, gas limit, etc. So, does "gas ...
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1answer
23 views

How to calculate “gas” and “gasPrice” when referring to ethgasstation.info when sending transaction via web3js?

I'm using web3js to issue token which has a name and description. I'm using ropsten testnet. Here's my tx. const tx = { from: walletAddress, to: contractAddress, gas: 4700000, ...
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1answer
42 views

Calculated Gas Costs of Contract execution

I have a smart contract that maps a string to a string value and stores it on the Blockchain. I want to analyse the Gas Used by Transaction. One time the execution consumes 92,843 Gas (https://rinkeby....
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0answers
53 views

How to create an ethereum private network with proof of authtority without gas cost or gas price zero?

I want to create a private network but I don't need to use ether or gas, only I want to run smart contracts and the blockchain using ethereum technology. I find this tutorial Private proof of ...
3
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2answers
75 views

How to determine transaction fees using web3.py

I am using web3py to transfer tokens and ether. I need to track the transaction fees for each transaction. Given a transaction hash, how do I determine the total fee paid?
6
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2answers
282 views

Deploying contract with no cost (gasPrice 0) on private network

In order to achieve a no-coin bootstrapping of my private network I'm trying to deploy a first special contract having zero funds in owner wallet (every wallet of this private network should have zero ...
5
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2answers
648 views

How is it possible to pay 2,100 Ether ($309,267) for a transaction fee?

Here is the transaction details that has transaction fee for 2,100 Ether ($309,267.00) only for sending 0.1 Ether. There is no fairness for users, hence accidentally adding a zero might cause them ...
1
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1answer
22 views

Costs in gas of changing the value of a variable

Maybe a little bit weird question, but can the amount of gas, when: SSTORE is used(for changing an existing variable), be lesser than 5000 gas? If no, are there discussions in community to reduce ...
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1answer
48 views

How much does the gas prices in the main eth network differ from that in the ropsten test network

I'd like to know, to which degree does the Gas prices from the main eth network are comparable to the ropsten test network.
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1answer
319 views

Truffle and Ganache - do I need to set the same gas-price and gas-limit in both of them?

Or can I set different values? If I can set different values, then how will they be used in the system (i.e., what gas-price and gas-limit will apply in every transaction that I execute)? Here is my ...
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0answers
31 views

Why I can use a lower gasPrice than the node I set in --gasPrice

I established a private network recently and I use web3.eth.sendTransaction({from:"0x14ca04ff85747def87d6c6c566db84cc24e4643b",to:"0xa04fce8906c870a47a8a7f5f7547dfc4a62cae7a",value:"1000000000",...
2
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1answer
637 views

What's the default web3 gas price? [duplicate]

When sending a TX, there's an optional gasPrice field. If I don't set it, what's it default to? Does it look at other TXs going on or is it a fixed value that only changes when web3 gets updated to a ...
2
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0answers
53 views

Why account creation using CALL or SUICIDE costs 25000 gas? [duplicate]

CALL and SUICIDE both have additional cost of 25000 gas if it leads to account creation. At the same time, sending 1 wei in separate transaction costs only 21000 gas. Thereby if I am about to create ...
4
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2answers
349 views

web3.eth.getGasPrice() always return 1GWei

For estimate transaction cost, I use web3.eth.getGasPrice() function. The return callback value always 1Gwei(1,000,000,000) in ROPSTEN. web3.eth.getGasPrice(function(error, result){ console.log(...
3
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1answer
240 views

how to use web3j over infura to find exact gas price used for a successful transaction

my goal is to compute the cost of gas for a successful tx. I get a callback when a transaction succeeds and i retrieve gasUsed with transactionReceipt.getGasUsed(). Now I need to know the exact gas ...
0
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2answers
35 views

The cost of using Ethereum as a reference database

As stated in the documentation there are 3 types of storage in the Ethereum VM (EVM) The storage, the memory, and the stack Each account has a data area called storage, which is persistent ...
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0answers
89 views

Image and file storage in block chain

Is it possible to store a base64 image code as string in block chain? I know we can use IPFS or Swarm as a tool to store an image or a document, but if someone gets to know about the hash anyone can ...
1
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0answers
15 views

Ethereum Price - Transaction cost relation [duplicate]

The average transaction cost is around 0.0005ETH which is around 0.06$ right now. Does it mean that the transaction fee decreases whenever the price of Ethereum drops? Isn’t the price closely related ...
1
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0answers
24 views

function gas calculator and function gas padding

not sure if this is possible, but I was wondering if one function can calculate the gas cost of another function? Also can a function run a series of computations to match the gas cost of the ...
2
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0answers
28 views

What Web3JS method do I call to know what value to use for the gas price with sendSignedTransaction?

I am using Web3JS 1.0+ to send transactions to my smart contract. I've been using the following constant for the gas price in my code that I got a long time ago from a tutorial. What is the "...
1
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1answer
86 views

What should be optimal gas limit and gas price for 80 addresses airdrop?

This is my airdrop function: mapping (address => bool) public airdrops; function airdropTokens(address[] _recipient, uint256[] _tokens) public onlyOwner{ uint airdropped; for(uint256 i = 0; i< ...
1
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1answer
227 views

Transaction dropped. How to increase gas fee?

I sent some ether using Ledger Live, but the gas fee was too low. Id like to increase the gas fee. I was told I can do this via Ledger Etherum Wallet for Chrome. However, when I open Ledger Etherum ...
2
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1answer
218 views

How to determine the gas price mathematically

The mathematical equation to define the gas price is gasprice = 1 gwei / gasused. The mathematical equation to define the tax to be paid for each transaction is tax = gasprice x gasused. Are these ...
0
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2answers
188 views

How to solve insufficient funds (Ropsten)?

I have tried adjusting the Gas Limit and GWEI and I get this error. I am using infura and Ropsten. Has anyone any ideas about this? Code - var rawTransaction = {"from":myAddress, "...
2
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2answers
349 views

weird transaction sending to self

see some weird txs calling self addresses, for example, the last 2(the first and second tx in this block) transactions, at https://etherscan.io/txs?block=6475251&p=2 https://etherscan.io/tx/...
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2answers
481 views

Explanation of Geth's Command Line option: targetgaslimit?

I have been trying to figure out what the targetgaslimit parameter does exactly for Geth, in the context of Private Blockchains. I have seen the following explanation but it never helped me: "Target ...
1
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1answer
26 views

Why aren't costs “advertised” or at least knowable so funds aren't lost?

I'm admittedly new to all of this, but as I learn about the transaction model, it seems to be a confusing business model at the very least. I can understand that the price of gas fluctuates or can be ...