How to estimate the gas price

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Step 1: Setup Moralis

Read the article Setting Up Moralis: Getting Started and make sure to finish all the steps. Only after that you can go ahead to complete this guide.

Step 2: Estimate gas price

In order to estimate the gas price, Moralis provides you a estimateGasPrice endpoint to do so.

Here you'll need one parameter: network.

Once you have obtained the network, you can copy the following code:

index.js (JavaScript)

const Moralis = require("moralis").default;

const runApp = async () => {
  await Moralis.start({
    apiKey: "YOUR_API_KEY",
    // ...and any other configuration
  });

  const network = "mainnet";

  const response = await Moralis.AptosApi.transactions.estimateGasPrice({
    network,
  });

  console.log(response);
};

runApp();

index.ts (TypeScript)

import Moralis from "moralis";

const runApp = async () => {
  await Moralis.start({
    apiKey: "YOUR_API_KEY",
    // ...and any other configuration
  });

  const network = "mainnet";

  const response = await Moralis.AptosApi.transactions.estimateGasPrice({
    network,
  });

  console.log(response);
};

runApp();

index.py (Python)

from moralis import aptos_api

api_key = "YOUR_API_KEY"

params = {
    "network": "mainnet",
}

result = aptos_api.transactions.estimate-gas-price(
    api_key=api_key,
    params=params,
)

print(result)

Step 3: Run the script

To run the script, enter the following command:

Shell (JavaScript)

node index.js

Shell (TypeScript)

ts-node index.ts

Shell (Python)

python index.py

In your terminal, you should see the following JSON response:

{
  "deprioritized_gas_estimate": 100,
  "gas_estimate": 100,
  "prioritized_gas_estimate": 150,
  "__headers": {
    "date": "Wed, 12 Apr 2023 15:09:16 GMT",
    "content-type": "application/json",
    "content-length": "84",
    "connection": "close",
    "x-aptos-chain-id": "1",
    "x-aptos-ledger-version": "119821921",
    "x-aptos-ledger-oldest-version": "0",
    "x-aptos-ledger-timestampusec": "1681312155079381",
    "x-aptos-epoch": "2186",
    "x-aptos-block-height": "46554718",
    "x-aptos-oldest-block-height": "0"
  }
}

Congratulations 🥳 You just estimate the gas price with just a few lines of code using the Moralis Transaction API!

Youtube Video

API Reference

If you want to know more details on the endpoint and optional parameters, check out:

• estimateGasPrice

Support

If you face any trouble following the tutorial, feel free to reach out to our community engineers in our Discord or Forum to get 24/7 developer support.