Optimizing raw transactions on Ethereum: A guide for creating specific fee prices
The transaction fees of Ethereum can be an essential obstacle for developers and users alike. The design of the network ensures that fees are not negligible, which can lead to reduced acceptance and usability of certain characteristics. However, determining specific fee rates can be a challenge due to the current implementation. In this article we will examine the most efficient options for creating RAW transactions with custom fee rates for Ethereum.
The Huhn -Ei problem
One of the main problems is that determining a specific fee course requires the total weight (in bytes) of the transaction data. This information is crucial for determining the required gas price. Conversely, the calculation of the gas price can give an insight into the expected size of the transaction, but it is not a reliable method to set a certain fee rate.
Calculation of the total weight
The total weight is calculated by summarizing the following components:
- Transaction data (e.g. accounts, addresses, values)
- Contract code
- Functional views
To calculate the total weight, we can use the following formula:
Total_weight = tx_data_weight + contract_code_size + function_call_weights
where tx_data_weight is a variable that represents the size of the transaction data in bytes, and ‘contract_code_sizeand function_call_weightsare variables that represent the size of the contract code or function call.
Create raw transactions with custom fee prices
In order to create RAW transactions with custom fee rates, we have to:
- Calculate the total weight : Calculate the total weight of the transaction data.
- Set the gas price : Choose a gas price that compensates for the expected size of the transaction against the available funds in the wallet. This is usually done using the "ETH -Gasprice" variable.
Example code
Here is a sample code -nippet in Solidity (Ethereum) to illustrate the process:
Solidity
Pragma solidity ^0.8.0;
Treaty MyContract {
Function MyFunction () Public too payable {
// Calculate the total weight of the transaction data
Uint32 Txdataweight = 10 * 1024; // Take on 10 kb for the simplicity
// Set the gas price
Uint256 Gasprice = Ethgasprice ();
// Create the RAW transaction with a custom fee price
Address receiver address;
Bytes memory data = …; // Replace with actual transaction data
// codes the transaction in the hexadecimal format
String storage txhex = Abi.encodeewithsigner (MyContract, transmitter, data);
// send the transaction to the Ethereum network
payable (recicentaddress). Sendvalue (txhex);
}
}
`
Important considerations
Gas prices
: The gas price is usually selected on the basis of a complex algorithm, which takes into account factors such as the expected size of the transaction and the available funds in the wallet. Therefore, it is not possible to simply set a certain fee rate without taking this complexity into account.
* Transaction data : The total weight calculation sets a fixture for each component of the transaction (e.g. account details, contract code). However, the actual sizes can vary depending on the specific application and the data to be transmitted.
Diploma
It is difficult to create RAW transactions with custom fee rates for Ethereum, since the current complexity of the implementation still gives ways to optimize the process. If you understand how gas prices work and the total weight of the transaction data can be used, developers can make well -founded decisions about determining certain fee rates for their applications.
