> For the complete documentation index, see [llms.txt](https://sdk.unlockd.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sdk.unlockd.finance/getting-started/sdk-modules/buy-now-module.md).

# Buy Now Module

<figure><img src="/files/XhuJX24BGKpsNsQHHXcj" alt=""><figcaption><p>BuyNow flow</p></figcaption></figure>

## Types

### Signature

```typescript
export type Signature = {
  data: object
  signature: { v: number; r: string; s: string; deadline: number }
}

/* data object
interface SignBuyNow {
  asset: SignAsset;
  assetLtv: BigInt;
  assetLiquidationThreshold: BigInt;
  from: string;
  to: string;
  data: string;
  value: BigInt;
  marketAdapter: string;
  marketApproval: string;
  marketPrice: BigInt;
  underlyingAsset: string;
  nonce: BigInt;
  deadline: BigInt;
}

interface SignLoanConfig {
  loanId: string;
  aggLoanPrice: BigInt;
  aggLtv: BigInt;
  aggLiquidationThreshold: BigInt;
  totalAssets: BigInt;
  nonce: BigInt;
  deadline: BigInt;
}
*/
```

### ClientOptions

```typescript
export type ClientOptions = {
  network?: Chain
}

export type Chain = 'mainnet' | 'sepolia' | 'localhost'
```

## Functions

### Buying an Asset

To buy an asset instantly, use the `buy` function from the `buyNow` module:

```typescript
export const buy = async (
        amount: string, 
        signature: Signature, 
        options?: ClientOptions
    )
```

```typescript
const result = await buy(amount, signature, options?);
```

Refer to the Buy Now Module documentation for more details on the `buy` function.