Understanding gas limits and sending transactions on the Ethereum network **

As an Ethereum developer, it is essential to understand how gas restriction works by sending transactions in blockchain. In this article, we are immersed in the concept of gas restrictions on how to calculate them and provide guidance to use them effectively.

What are gas restrictions?

Gas restrictions apply to maximum computing power (GAS), which can be used by a intelligent transaction or contract. This limit is defined by Ethereum Virtual Machine (EVM) and ensures that transactions do not consume excessive resources, leading to performance problems and potential errors.

Calculation of gas costs

You must estimate the number of gas units required to calculate the gas cost of a specific transaction. EVM uses an algorithm called “gas price” to determine how much gas you need for each block. This schedule takes into account factors such as network congestion, difficulty levels and block size.

General formula for calculating gas costs:

Gas cost = (block size \* gas price) / 1 000 000"

Where the "block size" is the number of bytes attributed to the transaction or execution of the contract and the "gas price" is the current gas price of 1,000,000 units.

Here is an example of calculation:

Suppose you make a smart contract that distributes your body 100 KB (102,400 bytes). The current gas price is $ 20 / 1,000 of units.

Gas cost = (100 000 bytes \* $ 20 / unit) / 1,000,000″

“Gas cost ≈ 2000 gas unit”

Understanding gas restrictions

When sending a transaction, you must take into account the gas limit to the sender and the destination address. This ensures that the transaction does not exceed the performance of the available calculation.

To determine that the transaction is within the allowed gas limit -e:

• Calculate the total gas cost of the transaction with the “GaspriceTogascost” function of Web3 Direct

• Compare the calculated cost of the gas with the available calculation power (represented by your account and limit gas of a destination address)

• If the transaction is within the allowed gas limit, continue with signature and radiation.

Example Code

Here is an updated example code detail that calculates gas costs to call the smart contract method:

`JavaScript

CONST Web3 = necessary ('Web3');

Consta URL = ' // Replace Project ID Infura

CONST W = New Web3 (URL);

CONSIDDRESS = 'Your_account_address';

Constantaddress = 'to_target_address';

// Calculate the cost of gas from the transaction

Asynchronous function calcululescost (transaction) {

Consta Gaspicetocascost = Waiting W.eth.gaspicetogascost ();

CONST GASCOST = (transaction.body.bytesize * GaspriceTogascost) / 1,000,000;

Postal gas return;

}

// Subscription and transmission The transaction using the calculated cost of gas

Asynchronous function Sendtransication (transaction) {

CONST GASCOST = Wait for the calculations (transaction);

IF (GasCost <= w.eth.gaslimit (accountaddress)) {

// continue signing and radiation of the transaction

} Other {

Launching a new error (It is not enough gas limit: $ {gascost} vs available calculation power: $ {w.eth.gaslimit (accountaddress)});

}

}

// using examples:

CONST SMARTCONTRACT = Wait w.ethereum.contracts.load ('0x ...'); // Replace the contract title

Constt Transaction = {Method: 'Somememod', Params: ['Arg1', 'Arg2']};

Sendtransection;

Remember to replace places (for example: your_account_address,to_target_address "and '0x ...) with the ID of the Infura Real project, the invoice address and the contract title.

The best exercises

When sending transactions at Ethereum, follow these proven exercises:

• Always check that the transaction is within the allowed gas limit.

2.

ETHEREUM ISSUE ORIGIN TEST