> For the complete documentation index, see [llms.txt](https://www.webln.guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.webln.guide/building-lightning-apps/webln-reference/webln.sendpayment.md).

# webln.sendPayment()

Request that the user sends a payment for an invoice. The application needs to provide a [BOLT-11](https://github.com/lightningnetwork/lightning-rfc/blob/master/11-payment-encoding.md) invoice. For an invoiceless payment, use [webln.keysend](broken://pages/vWMNoFEaHGHkTPwX0VcQ).

**Method**

```typescript
async function sendPayment(paymentRequest: string): SendPaymentResponse;
```

#### Parameters

```javascript
paymentRequest: string // the invoice you'd like the user to pay (lnbc...)
```

#### Response

```typescript
interface SendPaymentResponse {
  preimage: string;
}
```

#### Example

```typescript
const invoice = "lnbc100...";
const result = await window.webln.sendPayment(invoice);
```

#### Demo

{% embed url="<https://codepen.io/getalby/pen/RwxdQNO>" %}


---

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