# fetchAccountHash

## Description

The `fetchAccountHash` function takes a public key as input, converts it to an account hash using a third-party API, and returns the account hash as a string.

## Parameters

| Name        | Type   | Description                         |
| ----------- | ------ | ----------------------------------- |
| `publicKey` | string | The public key of the user's wallet |

## Response

| Name          | Type   | Description                           |
| ------------- | ------ | ------------------------------------- |
| `accountHash` | string | The account hash of the user's wallet |

## Example Request and Response

### Prerequisites

Before making requests with NO.AI SDK, you must have it installed.

You can install NO.AI SDK using either **`npm`** or **`yarn`**. Use the following commands to install NO.AI SDK:

```sh
npm install @nest25/casper-lib
OR
yarn add @nest25/casper-lib
```

### Request

Here is an example of how to make a `fetchAccountHash` request using the NO.AI SDK:

```javascript

// import Nest25 Casper library
const { Casper } = require('@nest25/casper-lib');
// create a new Casper instance
const casper = new Casper();

async function main() {
  const publicKey = '013a156a50fc6284ba436aedeaf96b55ac1a0c57ee9f8a46bf1c6518afe9b2f56c';
  // fetch account hash from public key
  let accountHash = await casper.fetchAccountHash(publicKey);
  // print account hash
  console.log({ accountHash });
}
// call main function
main();
```

### Response

```sh
{
        accountHash: 'account-hash-6a43e8538b4b695b6670c30ecd1f9fea26400573954be066fda6314fc8e17f13'
}
```

## Use Cases

* **Crypto Wallets:** The function can be used by crypto wallets to retrieve the account hash of a user's wallet for transaction purposes.
* **Payment Gateways:** The function can be used by payment gateways to retrieve the account hash of a user's wallet for payment processing.