feat: add NUT-01 mint getKeys

README.md

@@ -10,8 +10,8 @@ Library for [Cashu](https://github.com/cashubtc) wallets written in Dart.
 
 Implemented [NUTs](https://github.com/cashubtc/nuts/):
 
-- [] [NUT-00](https://github.com/cashubtc/nuts/blob/main/00.md)
-- [] [NUT-01](https://github.com/cashubtc/nuts/blob/main/01.md)
+- [x] [NUT-00](https://github.com/cashubtc/nuts/blob/main/00.md)
+- [x] [NUT-01](https://github.com/cashubtc/nuts/blob/main/01.md)
 - [] [NUT-02](https://github.com/cashubtc/nuts/blob/main/02.md)
 - [] [NUT-03](https://github.com/cashubtc/nuts/blob/main/03.md)
 - [] [NUT-04](https://github.com/cashubtc/nuts/blob/main/04.md)

lib/src/mint.dart

@@ -0,0 +1,28 @@
+import 'package:cashu_dart/src/model/response/get_keys.dart';
+import 'package:cashu_dart/src/utils/request.dart';
+
+/// Class that handles Cashu Mint API.
+class CashuMint {
+  /// Takes [String] url as a parameter
+  CashuMint({
+    required this.url,
+  });
+
+  final String url;
+
+  Future<GetKeysResponse?> getKeys({
+    String? keysetId,
+  }) async {
+    var endpoint = '$url/v1/keys';
+
+    if (keysetId != null) {
+      endpoint = '$endpoint/$keysetId';
+    }
+
+    final requestedData = await request(endpoint, 'GET', null);
+
+    final respon =
+        requestedData != null ? GetKeysResponse.fromJson(requestedData) : null;
+    return respon;
+  }
+}

lib/src/model/response/get_keys.dart

@@ -0,0 +1,37 @@
+import 'package:cashu_dart/src/model/types.dart';
+
+class GetKeysResponse {
+  GetKeysResponse({
+    required this.keysets,
+  });
+
+  final List<KeySet> keysets;
+
+  factory GetKeysResponse.fromJson(Map<String, dynamic> json) {
+    return GetKeysResponse(
+      keysets: List<KeySet>.from(
+        json['keysets'].map((x) => KeySet.fromJson(x)),
+      ),
+    );
+  }
+}
+
+class KeySet {
+  KeySet({
+    required this.id,
+    required this.unit,
+    required this.keys,
+  });
+
+  final String id;
+  final String unit;
+  final MintKeys keys;
+
+  factory KeySet.fromJson(Map<String, dynamic> json) {
+    return KeySet(
+      id: json['id'] as String,
+      unit: json['unit'] as String,
+      keys: Map<String, String>.from(json['keys'] as Map<String, dynamic>),
+    );
+  }
+}

lib/src/utils/request.dart

@@ -0,0 +1,39 @@
+import 'dart:io';
+
+import 'package:dio/dio.dart';
+
+Future<Map<String, dynamic>?> request(
+  String url,
+  String method,
+  String? body,
+) async {
+  if (method == 'GET') {
+    return await _getRequest(url);
+  } else if (method == 'POST') {
+    return await _postRequest(url, body);
+  } else {
+    return null;
+  }
+}
+
+Future<Map<String, dynamic>?> _getRequest(String url) async {
+  final dio = Dio();
+  final response = await dio.get<Map<String, dynamic>>(url);
+
+  if (response.statusCode == HttpStatus.ok) {
+    return response.data;
+  } else {
+    return null;
+  }
+}
+
+Future<Map<String, dynamic>?> _postRequest(String url, String? body) async {
+  final dio = Dio();
+  final response = await dio.post<Map<String, dynamic>>(url, data: body);
+
+  if (response.statusCode == HttpStatus.ok) {
+    return response.data;
+  } else {
+    return null;
+  }
+}

lib/src/wallet.dart

@@ -0,0 +1,9 @@
+import 'package:cashu_dart/src/mint.dart';
+
+class CashuWallet {
+  CashuWallet({
+    required this.cashuMint,
+  });
+
+  final CashuMint cashuMint;
+}

pubspec.yaml

@@ -9,6 +9,7 @@ environment:
 dependencies:
   convert: ^3.1.1
   crypto: ^3.0.3
+  dio: ^5.4.0
   pointycastle: ^3.7.3
   typed_data: ^1.3.2