Add examples for adding extra TLVs to a spontaneous payment

2025-12-17 05:44:20 +01:00 · 2024-01-29 17:11:25 +01:00
parent 60552e8b35
commit 37a46fa4d6
23 changed files with 290 additions and 55 deletions
--- a/snippets/csharp/SendSpontaneousPayment.cs
+++ b/snippets/csharp/SendSpontaneousPayment.cs
@@ -1,4 +1,6 @@
 using Breez.Sdk;
+using System;
+using System.Text;

 public class SendSpontaneousPaymentSnippets
 {
@@ -17,5 +19,26 @@ public class SendSpontaneousPaymentSnippets
            // Handle error
        }
        // ANCHOR_END: send-spontaneous-payment
+    }    
+    
+    public void SendSpontaneousPaymentWithTlvs(BlockingBreezServices sdk)
+    {
+        // ANCHOR: send-spontaneous-payment-with-tlvs
+        var nodeId = "...";
+        ulong amountMsat = 3_000_000;
+        var extraTlvs = new List<TlvEntry>{
+            new TlvEntry(34349334, Encoding.ASCII.GetBytes("Hello world!").ToList())
+        };
+
+        try
+        {
+            var response = sdk.SendSpontaneousPayment(
+                new SendSpontaneousPaymentRequest(nodeId, amountMsat, extraTlvs));
+        }
+        catch (Exception)
+        {
+            // Handle error
+        }
+        // ANCHOR_END: send-spontaneous-payment-with-tlvs
    }
 }
--- a/snippets/dart_snippets/lib/send_spontaneous_payment.dart
+++ b/snippets/dart_snippets/lib/send_spontaneous_payment.dart
@@ -1,5 +1,6 @@
 import 'package:breez_sdk/breez_sdk.dart';
 import 'package:breez_sdk/bridge_generated.dart';
+import 'dart:convert';

 Future<SendPaymentResponse> sendSpontaneousPayment({
  required String nodeId,
@@ -13,3 +14,23 @@ Future<SendPaymentResponse> sendSpontaneousPayment({
  // ANCHOR_END: send-spontaneous-payment
  return resp;
 }
+
+Future<SendPaymentResponse> sendSpontaneousPaymentWithTlvs({
+  required String nodeId,
+}) async {
+  // ANCHOR: send-spontaneous-payment-with-tlvs
+  List<TlvEntry> extraTlvs = [
+    TlvEntry(
+      fieldNumber: 34349334, 
+      value: utf8.encode("Hello world!"),
+    )
+  ];
+  SendSpontaneousPaymentRequest req = SendSpontaneousPaymentRequest(
+    amountMsat: 3000000,
+    nodeId: nodeId,
+    extraTlvs: extraTlvs,
+  );
+  SendPaymentResponse resp = await BreezSDK().sendSpontaneousPayment(req: req);
+  // ANCHOR_END: send-spontaneous-payment-with-tlvs
+  return resp;
+}
--- a/snippets/go/go.mod
+++ b/snippets/go/go.mod
@@ -2,6 +2,6 @@ module main

 go 1.19

-require github.com/breez/breez-sdk-go v0.2.10
+require github.com/breez/breez-sdk-go v0.2.15

 replace github.com/breez/breez-sdk-go => ./packages/breez-sdk-go
--- a/snippets/go/send_spontaneous_payment.go
+++ b/snippets/go/send_spontaneous_payment.go
@@ -1,6 +1,7 @@
 package example

 import (
+	"encoding/hex"
 	"log"

 	"github.com/breez/breez-sdk-go/breez_sdk"
@@ -17,3 +18,22 @@ func SendSpontaneousPayment() {
 	}
 	// ANCHOR_END: send-spontaneous-payment
 }
+func SendSpontaneousPaymentWithTlvs() {
+	// ANCHOR: send-spontaneous-payment-with-tlvs
+	value, _ := hex.DecodeString("Hello world!")
+	extraTlvs := []breez_sdk.TlvEntry{
+		breez_sdk.TlvEntry{
+			FieldNumber: uint64(34349334),
+			Value:       value,
+		},
+	}
+	sendSpontaneousPaymentRequest := breez_sdk.SendSpontaneousPaymentRequest{
+		NodeId:     "...",
+		AmountMsat: uint64(3_000_000),
+		ExtraTlvs:  &extraTlvs,
+	}
+	if response, err := sdk.SendSpontaneousPayment(sendSpontaneousPaymentRequest); err == nil {
+		log.Printf("%#v", response)
+	}
+	// ANCHOR_END: send-spontaneous-payment-with-tlvs
+}
--- a/snippets/kotlin_mpp_lib/shared/build.gradle.kts
+++ b/snippets/kotlin_mpp_lib/shared/build.gradle.kts
@@ -34,7 +34,7 @@ kotlin {
        }
        val commonMain by getting {
            dependencies {
-                implementation("technology.breez:breez-sdk-kmp:0.2.10")
+                implementation("technology.breez:breez-sdk-kmp:0.2.15")
            }
        }
    }
--- a/snippets/kotlin_mpp_lib/shared/src/commonMain/kotlin/com/example/kotlinmpplib/SendSpontaneousPayment.kt
+++ b/snippets/kotlin_mpp_lib/shared/src/commonMain/kotlin/com/example/kotlinmpplib/SendSpontaneousPayment.kt
@@ -14,4 +14,20 @@ class SendSpontaneousPayment {
        }
        // ANCHOR_END: send-spontaneous-payment
    }
+
+    fun send_spontaneous_payment_with_tlvs(sdk: BlockingBreezServices) {
+        // ANCHOR: send-spontaneous-payment-with-tlvs
+        val nodeId = "..."
+        val amountMsat = 3_000_000.toULong()
+        val extraTlvs = listOf<TlvEntry>(
+            TlvEntry(34_349_334.toULong(), "Hello world!".encodeToByteArray().asUByteArray().toList())
+        )
+        try {
+            val response = sdk.sendSpontaneousPayment(
+                SendSpontaneousPaymentRequest(nodeId, amountMsat, extraTlvs))
+        } catch (e: Exception) {
+            // handle error
+        }
+        // ANCHOR_END: send-spontaneous-payment-with-tlvs
+    }
 }
--- a/snippets/python/main.py
+++ b/snippets/python/main.py
@@ -7,7 +7,7 @@ from src.connecting_lsp import get_lsp_info, connect_lsp
 from src.buy_btc import buy
 from src.send_onchain import get_current_fees, list_current_fees, check_reverse_swap_status, start_reverse_swap
 from src.static_channel_backup import retrieve_backup_files
-from src.send_spontaneous_payment import send_spontaneous_payment
+from src.send_spontaneous_payment import send_spontaneous_payment, send_spontaneous_payment_with_tlvs
 from src.receive_payment import receive_payment
 from src.receive_onchain import generate_receive_onchain_address, get_in_progress_swap, list_refundables, execute_refund, get_channel_opening_fees
 from src.fiat_currencies import list_supported_fiat_currencies, get_current_rates
@@ -73,6 +73,7 @@ def main():

   #send spontaneous payment
   send_spontaneous_payment(sdk_services)
+   send_spontaneous_payment_with_tlvs(sdk_services)

   # fiat currencies
   list_supported_fiat_currencies(sdk_services)
--- a/snippets/python/src/send_spontaneous_payment.py
+++ b/snippets/python/src/send_spontaneous_payment.py
@@ -7,10 +7,25 @@ def send_spontaneous_payment(sdk_services):
    node_id = "..."
    amount_msat = 300000
    try:
-        req = breez_sdk.SendSpontaneousPaymentRequest(node_id,amount_msat)
+        req = breez_sdk.SendSpontaneousPaymentRequest(node_id, amount_msat)
        result = sdk_services.send_spontaneous_payment(req)
        # ANCHOR: send-spontaneous-payment
        return result
+    except Exception as error:
+        print(error)
+        raise
+
+
+def send_spontaneous_payment_with_tlvs(sdk_services):
+    # ANCHOR: send-spontaneous-payment-with-tlvs
+    node_id = "..."
+    amount_msat = 300000
+    extra_tlvs = [breez_sdk.TlvEntry(34349334, str.encode("Hello world!"))]
+    try:
+        req = breez_sdk.SendSpontaneousPaymentRequest(node_id, amount_msat, extra_tlvs)
+        result = sdk_services.send_spontaneous_payment(req)
+        # ANCHOR: send-spontaneous-payment-with-tlvs
+        return result
    except Exception as error:
        print(error)
        raise
--- a/snippets/react-native/send_spontaneous_payment.ts
+++ b/snippets/react-native/send_spontaneous_payment.ts
@@ -1,4 +1,7 @@
-import { sendSpontaneousPayment } from '@breeztech/react-native-breez-sdk'
+import {
+  sendSpontaneousPayment,
+  type TlvEntry
+} from '@breeztech/react-native-breez-sdk'

 const exampleSendSpontaneousPayment = async () => {
  // ANCHOR: send-spontaneous-payment
@@ -10,3 +13,26 @@ const exampleSendSpontaneousPayment = async () => {
  })
  // ANCHOR_END: send-spontaneous-payment
 }
+
+const stringToBytes = (str: string): number[] => {
+  const bytes: number[] = []
+  for (let i = 0; i < str.length; ++i) {
+    bytes.push(str.charCodeAt(i))
+  }
+  return bytes
+}
+
+const exampleSendSpontaneousPaymentWithTlvs = async () => {
+  // ANCHOR: send-spontaneous-payment-with-tlvs
+  const nodeId = '...'
+  const extraTlvs: TlvEntry[] = [
+    { fieldNumber: 34349334, value: stringToBytes('Hello world!') }
+  ]
+
+  const sendPaymentResponse = await sendSpontaneousPayment({
+    nodeId,
+    amountMsat: 3000000,
+    extraTlvs
+  })
+  // ANCHOR_END: send-spontaneous-payment-with-tlvs
+}
--- a/snippets/react-native/yarn.lock
+++ b/snippets/react-native/yarn.lock
@@ -714,10 +714,10 @@
    "@babel/helper-validator-identifier" "^7.22.20"
    to-fast-properties "^2.0.0"

-"@breeztech/react-native-breez-sdk@0.2.10":
-  version "0.2.10"
-  resolved "https://registry.yarnpkg.com/@breeztech/react-native-breez-sdk/-/react-native-breez-sdk-0.2.10.tgz#072b00f57028b5276c600a462cbcaac93d3dee22"
-  integrity sha512-81wtbkKGxhDaIweIQkD+LLDUL7WTtbI3qEb9vx4Itiu1hGzM8Q2RlYNF5R1jh2m4wdYKUKMWSBd3O4VRnywf1Q==
+"@breeztech/react-native-breez-sdk@0.2.15":
+  version "0.2.15"
+  resolved "https://registry.yarnpkg.com/@breeztech/react-native-breez-sdk/-/react-native-breez-sdk-0.2.15.tgz#0a415747e94b08f0dbbca8aae23f2d4231881db3"
+  integrity sha512-VxT4wdZCyDrhZBe6heHJKUJc1nbVJ4Y0qbOm1B+LJa6JOq0YDooUFnbtHMq1PHQ3xviwuM1pCzAco0orWqnvDA==

 "@esbuild/android-arm64@0.18.20":
  version "0.18.20"
--- a/snippets/rust/Cargo.lock
+++ b/snippets/rust/Cargo.lock
@@ -86,6 +86,7 @@ checksum = "c258c1a017ecaccfb34c8fa46ecbb2f5402584e31082c12b5caf0be82ac5ac44"
 dependencies = [
 "anyhow",
 "atomic",
+ "backtrace",
 "chrono",
 ]

@@ -449,7 +450,8 @@ dependencies = [
 [[package]]
 name = "bolt-derive"
 version = "0.2.0"
-source = "git+https://gitlab.com/cdecker/vls?tag=snapshot-20230920#b8d42d68bb3a525a8b7340b132220a0de922d62f"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7b4a20c5d2dd939142aa8edcfcaa5126bf0e4483d8edce6502037c2b0adbe069"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -458,8 +460,8 @@ dependencies = [

 [[package]]
 name = "breez-sdk-core"
-version = "0.2.10"
-source = "git+https://github.com/breez/breez-sdk?tag=0.2.10#d18529988eb7b1038473161e44c88225c7a0236d"
+version = "0.2.15"
+source = "git+https://github.com/breez/breez-sdk?tag=0.2.15#5486f167e046d28b0a3f9885b4bf9c44cd3e1ba8"
 dependencies = [
 "aes",
 "anyhow",
@@ -476,8 +478,8 @@ dependencies = [
 "gl-client",
 "hex",
 "lazy_static",
- "lightning 0.0.115",
- "lightning-invoice 0.23.0",
+ "lightning 0.0.118",
+ "lightning-invoice 0.26.0",
 "log",
 "miniz_oxide",
 "once_cell",
@@ -606,7 +608,8 @@ dependencies = [
 [[package]]
 name = "cln-grpc"
 version = "0.1.7"
-source = "git+https://github.com/cdecker/lightning.git?tag=gl-20231113#075927b2c5f38fdbde4c0764135be58340b0ce08"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9e745ebc04340d421c7bc8305942a60d3dd8531d94df24f1b8c3906942735f0d"
 dependencies = [
 "anyhow",
 "bitcoin 0.30.1",
@@ -935,12 +938,13 @@ dependencies = [

 [[package]]
 name = "flutter_rust_bridge"
-version = "1.80.1"
+version = "1.82.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fd0305ebc9f097d9826530a55fc2acd63222e912c663f7adce3ab641ecc0f346"
+checksum = "23a5a7a1cd030cd63f53eafe2496eb4e40f520800e6e9b78cae6f3f3ba7f3c2b"
 dependencies = [
 "allo-isolate",
 "anyhow",
+ "backtrace",
 "build-target",
 "bytemuck",
 "cc",
@@ -1131,7 +1135,7 @@ checksum = "6fb8d784f27acf97159b40fc4db5ecd8aa23b9ad5ef69cdd136d3bc80665f0c0"
 [[package]]
 name = "gl-client"
 version = "0.1.9"
-source = "git+https://github.com/Blockstream/greenlight.git?rev=84a66ac3c467569365285814ef5a691b5b97f60d#84a66ac3c467569365285814ef5a691b5b97f60d"
+source = "git+https://github.com/Blockstream/greenlight.git?rev=556eedf47a837b71c4277ba6ee84322f5cbd80de#556eedf47a837b71c4277ba6ee84322f5cbd80de"
 dependencies = [
 "anyhow",
 "async-trait",
@@ -1145,7 +1149,7 @@ dependencies = [
 "hex",
 "http",
 "http-body",
- "lightning-invoice 0.24.0",
+ "lightning-invoice 0.26.0",
 "log",
 "mockall",
 "pin-project",
@@ -1585,9 +1589,9 @@ dependencies = [

 [[package]]
 name = "lightning"
-version = "0.0.116"
+version = "0.0.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90a0f2155316f1570446a0447c993480673f840748c8ed25bbc59dfc442ac770"
+checksum = "d52cec5fa9382154fe9671e8df93095b800c7d77abc66e2a5ef839d672521c5e"
 dependencies = [
 "bitcoin 0.29.2",
 ]
@@ -1608,14 +1612,14 @@ dependencies = [

 [[package]]
 name = "lightning-invoice"
-version = "0.24.0"
+version = "0.26.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1788c0158526ec27a502043c2911ea6ea58fdc656bdf8749484942c07b790d23"
+checksum = "3eb24878b0f4ef75f020976c886d9ad1503867802329cc963e0ab4623ea3b25c"
 dependencies = [
 "bech32",
 "bitcoin 0.29.2",
 "bitcoin_hashes 0.11.0",
- "lightning 0.0.116",
+ "lightning 0.0.118",
 "num-traits",
 "secp256k1 0.24.3",
 ]
@@ -3212,8 +3216,9 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"

 [[package]]
 name = "vls-core"
-version = "0.10.0"
-source = "git+https://gitlab.com/cdecker/vls?tag=snapshot-20230920#b8d42d68bb3a525a8b7340b132220a0de922d62f"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7465dd7f8cc004b67c52c6610ebf157695a93daf33f6a69c1b06b0f4e1fecbc0"
 dependencies = [
 "anyhow",
 "backtrace",
@@ -3239,7 +3244,8 @@ dependencies = [
 [[package]]
 name = "vls-persist"
 version = "0.10.0"
-source = "git+https://gitlab.com/cdecker/vls?tag=snapshot-20230920#b8d42d68bb3a525a8b7340b132220a0de922d62f"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "86279e60e9dcdd3bcc135b7979655f1c80c6b99c38fee25d390725bfc5a24994"
 dependencies = [
 "hex",
 "log",
@@ -3252,7 +3258,8 @@ dependencies = [
 [[package]]
 name = "vls-protocol"
 version = "0.10.0"
-source = "git+https://gitlab.com/cdecker/vls?tag=snapshot-20230920#b8d42d68bb3a525a8b7340b132220a0de922d62f"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55e525ef3cb95a27b240662fb518ea283d25b1f51afe899f0f253747acc284f4"
 dependencies = [
 "as-any",
 "bitcoin-consensus-derive",
@@ -3265,7 +3272,8 @@ dependencies = [
 [[package]]
 name = "vls-protocol-signer"
 version = "0.10.0"
-source = "git+https://gitlab.com/cdecker/vls?tag=snapshot-20230920#b8d42d68bb3a525a8b7340b132220a0de922d62f"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a766ac452520406eed1e7d8ad1c744156fc3ceaf6bdcefe3f3a44bd5f5ea0b29"
 dependencies = [
 "bit-vec",
 "log",
--- a/snippets/rust/Cargo.toml
+++ b/snippets/rust/Cargo.toml
@@ -6,6 +6,6 @@ edition = "2021"
 [dependencies]
 anyhow = "1"
 bip39 = { version = "2", features = ["rand"] }
-breez-sdk-core = { git = "https://github.com/breez/breez-sdk", tag = "0.2.10" }
+breez-sdk-core = { git = "https://github.com/breez/breez-sdk", tag = "0.2.15" }
 log = "0.4"
 tokio = "1.29"
--- a/snippets/rust/src/production.rs
+++ b/snippets/rust/src/production.rs
@@ -1,14 +1,13 @@
 use anyhow::Result;
 use breez_sdk_core::*;

-
 fn production_node_config() -> Result<NodeConfig> {
    // ANCHOR: moving-to-production
    // Read your Greenlight credentials from secure storage
    let device_key: Vec<u8> = vec![];
    let device_cert: Vec<u8> = vec![];
    let greenlight_credentials = GreenlightCredentials {
-        device_key, 
+        device_key,
        device_cert,
    };

--- a/snippets/rust/src/receive_onchain.rs
+++ b/snippets/rust/src/receive_onchain.rs
@@ -12,8 +12,14 @@ async fn generate_receive_onchain_address(sdk: Arc<BreezServices>) -> Result<()>

    // Send your funds to the below bitcoin address
    let address = swap_info.bitcoin_address;
-    info!("Minimum amount allowed to deposit in sats: {}", swap_info.min_allowed_deposit);
-    info!("Maximum amount allowed to deposit in sats: {}", swap_info.max_allowed_deposit);
+    info!(
+        "Minimum amount allowed to deposit in sats: {}",
+        swap_info.min_allowed_deposit
+    );
+    info!(
+        "Maximum amount allowed to deposit in sats: {}",
+        swap_info.max_allowed_deposit
+    );
    // ANCHOR_END: generate-receive-onchain-address

    Ok(())
--- a/snippets/rust/src/send_onchain.rs
+++ b/snippets/rust/src/send_onchain.rs
@@ -32,14 +32,9 @@ async fn list_current_fees(current_fees: ReverseSwapPairInfo) -> Result<()> {

 async fn max_reverse_swap_amount(sdk: Arc<BreezServices>) -> Result<()> {
    // ANCHOR: max-reverse-swap-amount
-    let max_amount = sdk
-        .max_reverse_swap_amount()
-        .await?;
+    let max_amount = sdk.max_reverse_swap_amount().await?;

-    info!(
-        "Max reverse swap amount: {:?}",
-        max_amount.total_sat
-    );
+    info!("Max reverse swap amount: {:?}", max_amount.total_sat);
    // ANCHOR_END: max-reverse-swap-amount

    Ok(())
--- a/snippets/rust/src/send_spontaneous_payment.rs
+++ b/snippets/rust/src/send_spontaneous_payment.rs
@@ -10,9 +10,29 @@ async fn send_spontaneous_payment(sdk: Arc<BreezServices>) -> Result<()> {
    sdk.send_spontaneous_payment(SendSpontaneousPaymentRequest {
        amount_msat: 3_000_000,
        node_id,
+        extra_tlvs: None,
    })
    .await?;
    // ANCHOR_END: send-spontaneous-payment

    Ok(())
 }
+
+async fn send_spontaneous_payment_with_tlvs(sdk: Arc<BreezServices>) -> Result<()> {
+    // ANCHOR: send-spontaneous-payment-with-tlvs
+    let node_id = "...".into();
+    let extra_tlvs = vec![TlvEntry {
+        field_number: 34349334,
+        value: "Hello world!".as_bytes().to_vec(),
+    }];
+
+    sdk.send_spontaneous_payment(SendSpontaneousPaymentRequest {
+        amount_msat: 3_000_000,
+        node_id,
+        extra_tlvs: Some(extra_tlvs),
+    })
+    .await?;
+    // ANCHOR_END: send-spontaneous-payment-with-tlvs
+
+    Ok(())
+}
--- a/snippets/rust/src/webhook.rs
+++ b/snippets/rust/src/webhook.rs
@@ -1,19 +1,23 @@
-use std::sync::Arc;
 use anyhow::Result;
 use breez_sdk_core::*;
+use std::sync::Arc;

 async fn webhook(sdk: Arc<BreezServices>) -> Result<()> {
    // ANCHOR: register-webook
-    sdk.register_webhook("https://yourapplication.com".to_string()).await?;
+    sdk.register_webhook("https://yourapplication.com".to_string())
+        .await?;
    // ANCHOR_END: register-webook

    Ok(())
 }

 async fn payment_webhook(sdk: Arc<BreezServices>) -> Result<()> {
-  // ANCHOR: register-payment-webook
-  sdk.register_webhook("https://your-nds-service.com/notify?platform=ios&token=<PUSH_TOKEN>".to_string()).await?;    
-  // ANCHOR_END: register-payment-webook
+    // ANCHOR: register-payment-webook
+    sdk.register_webhook(
+        "https://your-nds-service.com/notify?platform=ios&token=<PUSH_TOKEN>".to_string(),
+    )
+    .await?;
+    // ANCHOR_END: register-payment-webook

-  Ok(())
+    Ok(())
 }
--- a/snippets/swift/BreezSDKExamples/Package.resolved
+++ b/snippets/swift/BreezSDKExamples/Package.resolved
@@ -5,8 +5,8 @@
      "kind" : "remoteSourceControl",
      "location" : "https://github.com/breez/breez-sdk-swift",
      "state" : {
-        "revision" : "74402afba8218ff84a0f32d1bc0d4ddc7698f576",
-        "version" : "0.2.10"
+        "revision" : "73c7bf88ce51471f4a6313aa583fa1a5394442f7",
+        "version" : "0.2.15"
      }
    },
    {
--- a/snippets/swift/BreezSDKExamples/Package.swift
+++ b/snippets/swift/BreezSDKExamples/Package.swift
@@ -8,7 +8,7 @@ let package = Package(
    platforms: [.macOS(.v12)],
    dependencies: [
        .package(url: "https://github.com/apple/swift-argument-parser", from: "1.2.3"),
-        .package(url: "https://github.com/breez/breez-sdk-swift", from:"0.2.10")
+        .package(url: "https://github.com/breez/breez-sdk-swift", from:"0.2.15")
    ],
    targets: [
        // Targets are the basic building blocks of a package, defining a module or a test suite.
--- a/snippets/swift/BreezSDKExamples/Sources/SendSpontaneous.swift
+++ b/snippets/swift/BreezSDKExamples/Sources/SendSpontaneous.swift
@@ -16,6 +16,17 @@ func sendSpontaneousPayment(sdk: BlockingBreezServices) -> SendPaymentResponse?
            nodeId: "...",
            amountMsat: 3_000_000))
    // ANCHOR_END: send-spontaneous-payment
-    return response
-    
+    return response  
+}
+
+func sendSpontaneousPaymentWithTlvs(sdk: BlockingBreezServices) -> SendPaymentResponse? {
+    // ANCHOR: send-spontaneous-payment-with-tlvs
+    let extraTlvs = [TlvEntry(fieldNumber: 34_349_334, value: Array("Hello world!".utf8))]
+    let response = try? sdk.sendSpontaneousPayment(
+        req: SendSpontaneousPaymentRequest(
+            nodeId: "...",
+            amountMsat: 3_000_000,
+            extraTlvs: extraTlvs))
+    // ANCHOR_END: send-spontaneous-payment-with-tlvs
+    return response
 }