# useGetGasPrice

## Description

This hook fetches the current gas price for transactions on the connected blockchain. It leverages a public client to estimate the gas fees and provides both `maxFeePerGas` and `maxPriorityFeePerGas` values. 

The `maxFeePerGas` is calculated with a buffer, doubling the estimated fee to accommodate potential fluctuations in gas prices. 

This hook is useful for determining the cost of transactions in real-time.

## Parameters

* **rpcUrl?** (`string`) : An optional RPC URL to use for the public client. If not provided, the default RPC URL associated with the smart account will be used.

## Returns

* **data** (`GasPriceResult | undefined`): The fetched gas price data, containing `maxFeePerGas` and `maxPriorityFeePerGas`.
* **isLoading** (`boolean`): A boolean indicating whether the data is currently being fetched.
* **error** (`Error | null`): An error object if an error occurred during the fetching process, otherwise `null`.

## Example

```tsx
import { useGetGasPrice } from "@cometh/connect-react-hooks";
import { formatEther } from "viem";
 
export const GasPriceDisplay = () => {
 const { data: gasPrice, isLoading, error } = useGetGasPrice();
 
 if (isLoading) return <p>Loading gas prices...</p>;
 if (error) return <p>Error fetching gas prices: {error.message}</p>;
 
 return (
   <div>
     <h2>Current Gas Prices</h2>
     <p>Max Fee Per Gas: {formatEther(gasPrice.maxFeePerGas)} ETH</p>
     <p>Max Priority Fee Per Gas: {formatEther(gasPrice.maxPriorityFeePerGas)} ETH</p>
   </div>
  );
};
```

## Usage context

The `useGetGasPrice` hook must be used within a context that provides access to `useSmartAccount`. This ensures that the `smartAccountClient` and `queryClient` are available, and it avoids errors related to missing context or data.