Add signing and verifying message docs

snippets/csharp/Messages.cs

@@ -0,0 +1,50 @@
+using Breez.Sdk.Liquid;
+
+public class MessagesSnippets
+{
+    public void SignMessage(BindingLiquidSdk sdk)
+    {
+        // ANCHOR: sign-message
+        var message = "<message to sign>";
+        try
+        {
+            var signMessageResponse = sdk.SignMessage(new SignMessageRequest(message));
+
+            // Get the wallet info for your pubkey
+            var info = sdk.GetInfo();
+
+            var signature = signMessageResponse?.signature;
+            var pubkey = info?.walletInfo?.pubkey;
+
+            Console.WriteLine($"Pubkey: {pubkey}");
+            Console.WriteLine($"Signature: {signature}");
+        }
+        catch (Exception)
+        {
+            // Handle error
+        }
+        // ANCHOR_END: sign-message
+    }
+
+    public void CheckMessage(BindingLiquidSdk sdk)
+    {
+        // ANCHOR: check-message
+        var message = "<message>";
+        var pubkey = "<pubkey of signer>";
+        var signature = "<message signature>";
+        try
+        {
+            var checkMessageRequest = new CheckMessageRequest(message, pubkey, signature);
+            var checkMessageResponse = sdk.CheckMessage(checkMessageRequest);
+
+            var isValid = checkMessageResponse?.isValid;
+
+            Console.WriteLine($"Signature valid: {isValid}");
+        }
+        catch (Exception)
+        {
+            // Handle error
+        }
+        // ANCHOR_END: check-message
+    }
+}

snippets/dart_snippets/lib/messages.dart

@@ -0,0 +1,37 @@
+import 'package:dart_snippets/sdk_instance.dart';
+import 'package:flutter_breez_liquid/flutter_breez_liquid.dart';
+
+Future<SignMessageResponse> signMessage() async {
+  // ANCHOR: sign-message
+  SignMessageResponse signMessageResponse = breezSDKLiquid.instance!.signMessage(
+    req: SignMessageRequest(message: "<message to sign>"),
+  );
+
+  // Get the wallet info for your pubkey
+  GetInfoResponse? info = await breezSDKLiquid.instance!.getInfo();
+
+  String signature = signMessageResponse.signature;
+  String pubkey = info.walletInfo.pubkey;
+
+  print("Pubkey: $pubkey");
+  print("Signature: $signature");
+  // ANCHOR_END: sign-message
+  return signMessageResponse;
+}
+
+Future<CheckMessageResponse> checkMessage() async {
+  // ANCHOR: check-message
+  CheckMessageResponse checkMessageResponse = breezSDKLiquid.instance!.checkMessage(
+    req: CheckMessageRequest(
+      message: "<message>",
+      pubkey: "<pubkey of signer>",
+      signature: "<message signature>"
+    ),
+  );
+
+  bool isValid = checkMessageResponse.isValid;
+
+  print("Signature valid: $isValid");
+  // ANCHOR_END: check-message
+  return checkMessageResponse;
+}

snippets/go/messages.go

@@ -0,0 +1,60 @@
+package example
+
+import (
+	"log"
+
+	"github.com/breez/breez-sdk-liquid-go/breez_sdk_liquid"
+)
+
+func SignMessage(sdk *breez_sdk_liquid.BindingLiquidSdk) {
+	// ANCHOR: sign-message
+	message := "<message to sign>"
+
+	signMessageRequest := breez_sdk_liquid.SignMessageRequest{
+		Message: message,
+	}
+
+	signMessageResponse, err := sdk.SignMessage(signMessageRequest)
+	if err != nil {
+		log.Printf("Error: %#v", err)
+		return
+	}
+
+	// Get the wallet info for your pubkey
+	info, err := sdk.GetInfo()
+	if err != nil {
+		log.Printf("Error: %#v", err)
+		return
+	}
+
+	signature := signMessageResponse.Signature
+	pubkey := info.WalletInfo.Pubkey
+
+	log.Printf("Pubkey: %v", pubkey)
+	log.Printf("Signature: %v", signature)
+	// ANCHOR_END: sign-message
+}
+
+func CheckMessage(sdk *breez_sdk_liquid.BindingLiquidSdk) {
+	// ANCHOR: check-message
+	message := "<message>"
+	pubkey := "<pubkey of signer>"
+	signature := "<message signature>"
+
+	checkMessageRequest := breez_sdk_liquid.CheckMessageRequest{
+		Message:   message,
+		Pubkey:    pubkey,
+		Signature: signature,
+	}
+
+	checkMessageResponse, err := sdk.CheckMessage(checkMessageRequest)
+	if err != nil {
+		log.Printf("Error: %#v", err)
+		return
+	}
+
+	isValid := checkMessageResponse.IsValid
+
+	log.Printf("Signature valid: %v", isValid)
+	// ANCHOR_END: check-message
+}

snippets/kotlin_mpp_lib/shared/src/commonMain/kotlin/com/example/kotlinmpplib/Messages.kt

@@ -0,0 +1,44 @@
+package com.example.kotlinmpplib
+
+import breez_sdk_liquid.*
+
+class Messages {
+    fun signMessage(sdk: BindingLiquidSdk) {
+        // ANCHOR: sign-message
+        val message = "<message to sign>"
+        try {
+            val signMessageResponse = sdk.signMessage(SignMessageRequest(message))
+
+            // Get the wallet info for your pubkey
+            val info = sdk.getInfo()
+
+            val signature = signMessageResponse?.signature
+            val pubkey = info?.walletInfo?.pubkey
+
+            // Log.v("Breez", "Pubkey: ${pubkey}")
+            // Log.v("Breez", "Signature: ${signature}")
+        } catch (e: Exception) {
+            // handle error
+        }
+        // ANCHOR_END: sign-message
+    }
+
+    fun checkMessage(sdk: BindingLiquidSdk) {
+        // ANCHOR: check-message
+        val message = "<message>"
+        val pubkey = "<pubkey of signer>"
+        val signature = "<message signature>"
+        try {
+            val checkMessageRequest = CheckMessageRequest(message, pubkey, signature)
+            val checkMessageResponse = sdk.checkMessage(checkMessageRequest)
+
+            val isValid = checkMessageResponse?.isValid
+
+            // Log.v("Breez", "Signature valid: ${isValid}")
+        } catch (e: Exception) {
+            // handle error
+        }
+        // ANCHOR_END: check-message
+    }
+
+}

snippets/python/src/messages.py

@@ -0,0 +1,39 @@
+import logging
+from breez_sdk_liquid import BindingLiquidSdk, CheckMessageRequest, SignMessageRequest
+
+
+def sign_message(sdk: BindingLiquidSdk):
+    # ANCHOR: sign-message
+    message = "<message to sign>"
+    try:
+        sign_message_response = sdk.sign_message(SignMessageRequest(message))
+
+        # Get the wallet info for your pubkey
+        info = sdk.get_info()
+
+        signature = sign_message_response.signature
+        pubkey = info.wallet_info.pubkey
+
+        logging.debug(f"Pubkey: {pubkey}")
+        logging.debug(f"Signature: {signature}")
+    except Exception as error:
+        logging.error(error)
+        raise
+    # ANCHOR_END: sign-message
+
+def check_message(sdk: BindingLiquidSdk):
+    # ANCHOR: check-message
+    message = "<message>"
+    pubkey = "<pubkey of signer>"
+    signature = "<message signature>"
+    try:
+        check_message_request = CheckMessageRequest(message, pubkey, signature)
+        check_message_response = sdk.check_message(check_message_request)
+
+        is_valid = check_message_response.is_valid
+
+        logging.debug(f"Signature valid: {is_valid}")
+    except Exception as error:
+        logging.error(error)
+        raise
+    # ANCHOR_END: check-message

snippets/react-native/messages.ts

@@ -0,0 +1,35 @@
+import {
+  checkMessage,
+  getInfo,
+  signMessage
+} from '@breeztech/react-native-breez-sdk-liquid'
+
+const exampleSignMessage = async () => {
+  // ANCHOR: sign-message
+  const signMessageResponse = await signMessage({
+    message: '<message to sign>'
+  })
+
+  // Get the wallet info for your pubkey
+  const info = await getInfo()
+
+  const signature = signMessageResponse.signature
+  const pubkey = info.walletInfo.pubkey
+
+  console.log(`Pubkey: ${pubkey}`)
+  console.log(`Signature: ${signature}`)
+  // ANCHOR_END: sign-message
+}
+
+const exampleCheckMessage = async () => {
+  // ANCHOR: check-message
+  const checkMessageResponse = await checkMessage({
+    message: '<message>',
+    pubkey: '<pubkey of signer>',
+    signature: '<message signature>'
+  })
+  const isValid = checkMessageResponse.isValid
+
+  console.log(`Signature valid: ${isValid}`)
+  // ANCHOR_END: check-message
+}

snippets/rust/src/messages.rs

@@ -0,0 +1,40 @@
+use std::sync::Arc;
+
+use anyhow::Result;
+use breez_sdk_liquid::prelude::*;
+use log::info;
+
+async fn sign_message(sdk: Arc<LiquidSdk>) -> Result<()> {
+    // ANCHOR: sign-message
+    let sign_message_response = sdk
+        .sign_message(&SignMessageRequest {
+            message: "<message to sign>".to_string(),
+        })?;
+
+    // Get the wallet info for your pubkey
+    let info = sdk.get_info().await?;
+
+    let signature = sign_message_response.signature;
+    let pubkey = info.wallet_info.pubkey;
+
+    info!("Pubkey: {}", pubkey);
+    info!("Signature: {}", signature);
+    // ANCHOR_END: sign-message
+    Ok(())
+}
+
+fn check_message(sdk: Arc<LiquidSdk>) -> Result<()> {
+    // ANCHOR: check-message
+    let check_message_response = sdk
+        .check_message(&CheckMessageRequest {
+            message: "<message>".to_string(),
+            pubkey: "<pubkey of signer>".to_string(),
+            signature: "<message signature>".to_string(),
+        })?;
+
+    let is_valid = check_message_response.is_valid;
+
+    info!("Signature valid: {}", is_valid);
+    // ANCHOR_END: check-message
+    Ok(())
+}

snippets/swift/BreezSDKExamples/Sources/Messages.swift

@@ -0,0 +1,36 @@
+import BreezSDKLiquid
+
+func signMessage(sdk: BindingLiquidSdk) -> SignMessageResponse? {
+    // ANCHOR: sign-message
+    let signMessageRequest = try? sdk
+        .signMessage(req: SignMessageRequest(
+            message: "<message to sign>"
+        ))
+
+    // Get the wallet info for your pubkey
+    let info = try? sdk.getInfo()
+
+    let signature = signMessageRequest!.signature
+    let pubkey = info!.walletInfo.pubkey
+
+    print("Pubkey: {}", pubkey);
+    print("Signature: {}", signature);
+    // ANCHOR_END: sign-message
+    return signMessageRequest
+}
+
+func checkMessage(sdk: BindingLiquidSdk) -> CheckMessageResponse? {
+    // ANCHOR: check-message
+    let checkMessageRequest = try? sdk
+        .checkMessage(req: CheckMessageRequest(
+            message: "<message>",
+            pubkey: "<pubkey of signer>",
+            signature: "<message signature>"
+        ))
+
+    let isValid = checkMessageRequest!.isValid
+
+    print("Signature valid: {}", isValid);
+    // ANCHOR_END: check-message
+    return checkMessageRequest
+}

src/SUMMARY.md

@@ -22,6 +22,7 @@
   - [Receiving payments using LNURL-Pay/Lightning address](guide/lnurl_pay_service.md)
   - [Receiving payments using LNURL-Withdraw](guide/lnurl_withdraw.md)
   - [Authenticating using LNURL-Auth](guide/lnurl_auth.md)
+- [Signing and verifying messages](guide/messages.md)
 - [Supporting fiat currencies](guide/fiat_currencies.md)
 - [Buying Bitcoin](guide/buy_btc.md)
 - [End-user fees](guide/end-user_fees.md)
@@ -43,12 +44,8 @@
     - [iOS](notifications/ios_setup.md)
       - [Setting up the notification dervice extension](notifications/ios_service.md)
       - [Adding the notification plugin](notifications/ios_plugin.md)
-
----
-
-# Advanced 
-
-- [Adding logging](notifications/logging.md)
-- [Changing default strings](notifications/changing_strings.md)
-- [Customising push messages](notifications/custom_messages.md)
-- [Handling custom notifications](notifications/custom_notifications.md)
+- [Advanced](notifications/advanced.md)
+  - [Adding logging](notifications/logging.md)
+  - [Changing default strings](notifications/changing_strings.md)
+  - [Customising push messages](notifications/custom_messages.md)
+  - [Handling custom notifications](notifications/custom_notifications.md)