breez-sdk-docs/src/guide/send_payment.md

Sending Lightning Payments

Once you have outbound liquidity you can start sending payments too.

Rust

{{#include ../../snippets/rust/src/send_payment.rs:send-payment}}

Swift

do {
  // The `amountMsat` param is optional and should only passed if the bolt11 doesn't specify an amount.
  // The amountMsat is required in case an amount is not specified in the bolt11 invoice'.
  let req = SendPaymentRequest(bolt11: "...", amountMsat: 3000000)
  let response = try sdk.sendPayment(req: req)
} catch {
    // handle error
}

Kotlin

val bolt11 = "..."
try {
    // The `amountMsat` param is optional and should only passed if the bolt11 doesn't specify an amount.
    // The amountMsat is required in case an amount is not specified in the bolt11 invoice'.
    val amountMsat = 3000000L.toULong()
    val req = SendPaymentRequest(bolt11, amountMsat)
    val response = sdk.sendPayment(req)
} catch (e: Exception) {
    // handle error
}

React Native

{{#include ../../snippets/react-native/send_payment.ts:send-payment}}

Dart

{{#include ../../snippets/dart_snippets/lib/send_payment.dart:send-payment}}

Python

bolt11 = "..."
try:
  # The `amount_msat` param is optional and should only passed if the bolt11 doesn't specify an amount.
  # The amount_msat is required in case an amount is not specified in the bolt11 invoice'.
  req = breez_sdk.SendPaymentRequest(bolt11=bolt11, amount_msat=3000000)
  sdk_services.send_payment(req=req)
except Exception as error:
  # Handle error

Go

bolt11 := "bolt11 invoice"
// The `amountMsat` param is optional and should only passed if the bolt11 doesn't specify an amount.
// The amountMsat is required in case an amount is not specified in the bolt11 invoice'.
amountMsat := uint64(3000000)
sendPaymentRequest := breez_sdk.SendPaymentRequest{
    Bolt11: bolt11,
    AmountMsat: amountMsat,
}
if response, err := sdk.SendPayment(sendPaymentRequest); err == nil {
    log.Printf("%#v", response)
}

C#

{{#include ../../snippets/csharp/SendPayment.cs:send-payment}}