eth_estimateGas - Mantle

Example code for the eth_estimateGas JSON-RPC method. Complete guide on how to use eth_estimateGas JSON-RPC in GetBlock Web3 documentation.

This method generates and returns an estimate of how much gas is necessary to allow a transaction to complete on the Mantle network. On Mantle v2, this includes both L1 and L2 gas costs.

Parameters

Parameter

Type

Description

transaction

object

Transaction call object

blockParameter

string

(optional) Block number or "latest", "earliest", "pending"

Transaction Object:

Field

Type

Description

from

string

(optional) Sender address

string

Recipient address

gas

string

(optional) Gas limit

gasPrice

string

(optional) Gas price in wei

value

string

(optional) Value to send

data

string

(optional) Transaction data

Request

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "eth_estimateGas",
    "params": [{
        "to": "0xD85498dbEaEB1Df24BE52eED4F52eAc2Fbd56245",
        "value": "0xde0b6b3a7640000"
    }],
    "id": "getblock.io"
}'

estimateGas.js

import axios from 'axios';

const data = JSON.stringify({
    "jsonrpc": "2.0",
    "method": "eth_estimateGas",
    "params": [{
        "to": "0xD85498dbEaEB1Df24BE52eED4F52eAc2Fbd56245",
        "value": "0xde0b6b3a7640000"
    }],
    "id": "getblock.io"
});

const config = {
    method: 'post',
    url: 'https://go.getblock.io/<ACCESS-TOKEN>/',
    headers: {
        'Content-Type': 'application/json'
    },
    data: data
};

axios(config)
    .then(response => console.log(JSON.stringify(response.data)))
    .catch(error => console.log(error));

estimate_gas.py

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "eth_estimateGas",
    "params": [{
        "to": "0xD85498dbEaEB1Df24BE52eED4F52eAc2Fbd56245",
        "value": "0xde0b6b3a7640000"
    }],
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

main.rs

use reqwest::header;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = reqwest::Client::new();
    
    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header(header::CONTENT_TYPE, "application/json")
        .body(r#"{
            "jsonrpc": "2.0",
            "method": "eth_estimateGas",
            "params": [{
                "to": "0xD85498dbEaEB1Df24BE52eED4F52eAc2Fbd56245",
                "value": "0xde0b6b3a7640000"
            }],
            "id": "getblock.io"
        }"#)
        .send()
        .await?;
    
    println!("{}", response.text().await?);
    Ok(())
}

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": "0x5208"
}

Response Parameters:

Field

Type

Description

jsonrpc

string

JSON-RPC protocol version ("2.0")

string

Request identifier matching the request

result

string

Estimated gas amount in hexadecimal

Use Case

The eth_estimateGas method is essential for:

Transaction gas limit calculation
Transaction cost estimation
Smart contract deployment planning
DeFi transaction preparation
Wallet gas suggestions
Preventing out-of-gas errors

Error Handling

Status Code

Error Message

Cause

403

Forbidden

Missing or invalid ACCESS-TOKEN

-32000

Execution reverted

Transaction would fail

-32602

Invalid params

Invalid transaction object

Web3 Integration

import { ethers } from 'ethers';

const provider = new ethers.JsonRpcProvider('https://go.getblock.io/<ACCESS-TOKEN>/');

const gasEstimate = await provider.estimateGas({
    to: '0xD85498dbEaEB1Df24BE52eED4F52eAc2Fbd56245',
    value: ethers.parseEther('1.0')
});
console.log('Gas estimate:', gasEstimate.toString());

import { createPublicClient, http, parseEther } from 'viem';
import { mantle } from 'viem/chains';

const client = createPublicClient({
    chain: mantle,
    transport: http('https://go.getblock.io/<ACCESS-TOKEN>/')
});

const gasEstimate = await client.estimateGas({
    to: '0xD85498dbEaEB1Df24BE52eED4F52eAc2Fbd56245',
    value: parseEther('1.0')
});
console.log('Gas estimate:', gasEstimate);

Previouseth_accounts - Mantle Nexteth_chainId - Mantle

Last updated 4 days ago

Was this helpful?