# erc721Has

Returns an ERC-721 ownership of a token and user managed by a wallet module.

## Usage

The following example creates an inspect request handler that assumes the `payload` is an user address and just prints if he owns the NFT id 1 of token `0xc6582A9b48F211Fa8c2B5b16CB615eC39bcA653B`.

```ts twoslash
import { createApp } from "@deroll/app";
import { createWallet } from "@deroll/wallet";

// create app
const app = createApp();

// create wallet
const wallet = createWallet();

app.addAdvanceHandler(wallet.handler);

const token = "0xc6582A9b48F211Fa8c2B5b16CB615eC39bcA653B"; // NFT address // [!code focus]
app.addInspectHandler(async ({ payload }) => { // [!code focus]
    const address = payload.toString(); // [!code focus]
    const hasOne = wallet.erc721Has(token, address, 1n); // [!code focus]
    console.log(hasOne); // [!code focus]
}); // [!code focus]
```

## Returns

Type: `boolean`

Whether the user has ownership of a specific ERC-721 token id.

## Parameters

Type: `Address`

The ERC-721 token address.

Type: `string`

The address of the user to get the ownership from.

Type: `bigint`

The id of the token to check ownership.