Send Payment

The sendPayment method is called to pay an lightning invoice or BIP21 URI.

Syntax

sendPayment(String)

Parameters

• bip21 url : string or paymentRequest: string Required

Returns

• Promise

NOTE:
This call is asynchronous is would return a promise based on wether or not the payment has been broadcast Onchain and or processed successfully WebLN.

Example

// Example for processing a BIP21 URI Invoice
> await window.webbtc.sendPayment('bitcoin:n1nk1j5DKmmWWuV2TvzhUb3AYBtnqAK1u1?amount=1')
{
  "txid":"ba8d75e01ab32932d9ac899418a6bec95f2869e1b1c161b871f661c5a8789a0e"
}

// Example for processing a LN payment
window.webbtc.sendPayment('lnbc10n1p3x9thxpp59xj4cmm26jnpnrfekgncyj42e9lxredz…734s07kxt8hl2s6wuv20kh7kw7h5lurtmyscsrwgkgptn4z2j')

{
  "preimage": "6665333431626331363632653134386630643435626532626165383332323333",
  "paymentHash": "d221b791c7ef1996b25424ff7cfb4ddf8d4444076666ce6c4ba0f6a24d99117e"
}

Notes

• The purpose of this method includes both signing as well as broadcasting the transaction. The implementation details of this could be done as separate concerns.
• There are more complex versions for onchain including PSBT, pay multiple addresses at the same time.