Implement flutter bindings

lib/bindings/langs/flutter/breez_sdk_liquid/include/breez_sdk_liquid.h

@@ -447,8 +447,8 @@ typedef struct wire_cst_config {
 } wire_cst_config;
 
 typedef struct wire_cst_connect_request {
-  struct wire_cst_list_prim_u_8_strict *mnemonic;
   struct wire_cst_config config;
+  struct wire_cst_list_prim_u_8_strict *mnemonic;
 } wire_cst_connect_request;
 
 typedef struct wire_cst_aes_success_action_data_decrypted {

lib/bindings/src/breez_sdk_liquid.udl

@@ -320,10 +320,14 @@ enum LiquidNetwork {
 };
 
 dictionary ConnectRequest {
-    Config config;
+    Config config;    
     string mnemonic;
 };
 
+dictionary ConnectWithSignerRequest {
+  Config config;  
+};
+
 dictionary GetInfoResponse {
     u64 balance_sat;
     u64 pending_send_sat;
@@ -601,6 +605,9 @@ namespace breez_sdk_liquid {
     [Throws=SdkError]
     BindingLiquidSdk connect(ConnectRequest req);
 
+    [Throws=SdkError]
+    BindingLiquidSdk connect_with_signer(ConnectWithSignerRequest req, Signer signer);
+
     [Throws=SdkError]
     void set_logger(Logger logger);
     
@@ -614,6 +621,31 @@ namespace breez_sdk_liquid {
     LNInvoice parse_invoice(string input);
 };
 
+[Error]
+interface SignerError { 
+    Generic(string err);
+};
+
+callback interface Signer {
+    [Throws=SignerError]
+    sequence<u8> xpub();
+
+    [Throws=SignerError]
+    sequence<u8> derive_xpub(string derivation_path);
+
+    [Throws=SignerError]
+    sequence<u8> sign_ecdsa(sequence<u8> msg, string derivation_path);
+
+    [Throws=SignerError]
+    sequence<u8> sign_ecdsa_recoverable(sequence<u8> msg);
+
+    [Throws=SignerError]
+    sequence<u8> slip77_master_blinding_key();
+
+    [Throws=SignerError]
+    sequence<u8> hmac_sha256(sequence<u8> msg, string derivation_path);
+};
+
 interface BindingLiquidSdk {
     [Throws=SdkError]
     string add_event_listener(EventListener listener);

lib/bindings/src/lib.rs

@@ -54,6 +54,16 @@ pub fn connect(req: ConnectRequest) -> Result<Arc<BindingLiquidSdk>, SdkError> {
     })
 }
 
+pub fn connect_with_signer(
+    req: ConnectWithSignerRequest,
+    signer: Box<dyn Signer>,
+) -> Result<Arc<BindingLiquidSdk>, SdkError> {
+    rt().block_on(async {
+        let sdk = LiquidSdk::connect_with_signer(req, signer).await?;
+        Ok(Arc::from(BindingLiquidSdk { sdk }))
+    })
+}
+
 pub fn default_config(
     network: LiquidNetwork,
     breez_api_key: Option<String>,

packages/dart/lib/src/frb_generated.dart

@@ -1666,8 +1666,8 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
     final arr = raw as List<dynamic>;
     if (arr.length != 2) throw Exception('unexpected arr length: expect 2 but see ${arr.length}');
     return ConnectRequest(
-      mnemonic: dco_decode_String(arr[0]),
-      config: dco_decode_config(arr[1]),
+      config: dco_decode_config(arr[0]),
+      mnemonic: dco_decode_String(arr[1]),
     );
   }
 
@@ -3442,9 +3442,9 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
   @protected
   ConnectRequest sse_decode_connect_request(SseDeserializer deserializer) {
     // Codec=Sse (Serialization based), see doc to use other codecs
-    var var_mnemonic = sse_decode_String(deserializer);
     var var_config = sse_decode_config(deserializer);
-    return ConnectRequest(mnemonic: var_mnemonic, config: var_config);
+    var var_mnemonic = sse_decode_String(deserializer);
+    return ConnectRequest(config: var_config, mnemonic: var_mnemonic);
   }
 
   @protected
@@ -5330,8 +5330,8 @@ class RustLibApiImpl extends RustLibApiImplPlatform implements RustLibApi {
   @protected
   void sse_encode_connect_request(ConnectRequest self, SseSerializer serializer) {
     // Codec=Sse (Serialization based), see doc to use other codecs
-    sse_encode_String(self.mnemonic, serializer);
     sse_encode_config(self.config, serializer);
+    sse_encode_String(self.mnemonic, serializer);
   }
 
   @protected

packages/dart/lib/src/frb_generated.io.dart

@@ -2003,8 +2003,8 @@ abstract class RustLibApiImplPlatform extends BaseApiImpl<RustLibWire> {
 
   @protected
   void cst_api_fill_to_wire_connect_request(ConnectRequest apiObj, wire_cst_connect_request wireObj) {
-    wireObj.mnemonic = cst_encode_String(apiObj.mnemonic);
     cst_api_fill_to_wire_config(apiObj.config, wireObj.config);
+    wireObj.mnemonic = cst_encode_String(apiObj.mnemonic);
   }
 
   @protected
@@ -5580,9 +5580,9 @@ final class wire_cst_config extends ffi.Struct {
 }
 
 final class wire_cst_connect_request extends ffi.Struct {
-  external ffi.Pointer<wire_cst_list_prim_u_8_strict> mnemonic;
-
   external wire_cst_config config;
+
+  external ffi.Pointer<wire_cst_list_prim_u_8_strict> mnemonic;
 }
 
 final class wire_cst_aes_success_action_data_decrypted extends ffi.Struct {

packages/dart/lib/src/lib.dart

@@ -0,0 +1,10 @@
+// This file is automatically generated, so please do not edit it.
+// @generated by `flutter_rust_bridge`@ 2.4.0.
+
+// ignore_for_file: invalid_use_of_internal_member, unused_import, unnecessary_import
+
+import 'frb_generated.dart';
+import 'package:flutter_rust_bridge/flutter_rust_bridge_for_generated.dart';
+
+// Rust type: RustOpaqueNom<flutter_rust_bridge::for_generated::RustAutoOpaqueInner<Arc < Box < dyn Signer > >>>
+abstract class ArcBoxSigner implements RustOpaqueInterface {}

packages/dart/lib/src/model.dart

@@ -180,24 +180,24 @@ class Config {
 
 /// An argument when calling [crate::sdk::LiquidSdk::connect].
 class ConnectRequest {
-  final String mnemonic;
   final Config config;
+  final String mnemonic;
 
   const ConnectRequest({
-    required this.mnemonic,
     required this.config,
+    required this.mnemonic,
   });
 
   @override
-  int get hashCode => mnemonic.hashCode ^ config.hashCode;
+  int get hashCode => config.hashCode ^ mnemonic.hashCode;
 
   @override
   bool operator ==(Object other) =>
       identical(this, other) ||
       other is ConnectRequest &&
           runtimeType == other.runtimeType &&
-          mnemonic == other.mnemonic &&
-          config == other.config;
+          config == other.config &&
+          mnemonic == other.mnemonic;
 }
 
 /// Returned when calling [crate::sdk::LiquidSdk::get_info].

packages/flutter/lib/flutter_breez_liquid_bindings_generated.dart

@@ -4267,9 +4267,9 @@ final class wire_cst_config extends ffi.Struct {
 }
 
 final class wire_cst_connect_request extends ffi.Struct {
-  external ffi.Pointer<wire_cst_list_prim_u_8_strict> mnemonic;
-
   external wire_cst_config config;
+
+  external ffi.Pointer<wire_cst_list_prim_u_8_strict> mnemonic;
 }
 
 final class wire_cst_aes_success_action_data_decrypted extends ffi.Struct {