codigo actual del servidor, con avances de joan

source_code/lib/data_model/payments/paypal_url_response.dart

@@ -0,0 +1,33 @@
+// To parse this JSON data, do
+//
+//     final paypalUrlResponse = paypalUrlResponseFromJson(jsonString);
+
+import 'dart:convert';
+
+PaypalUrlResponse paypalUrlResponseFromJson(String str) => PaypalUrlResponse.fromJson(json.decode(str));
+
+String paypalUrlResponseToJson(PaypalUrlResponse data) => json.encode(data.toJson());
+
+class PaypalUrlResponse {
+  PaypalUrlResponse({
+    this.result,
+    this.url,
+    this.message,
+  });
+
+  bool? result;
+  String? url;
+  String? message;
+
+  factory PaypalUrlResponse.fromJson(Map<String, dynamic> json) => PaypalUrlResponse(
+    result: json["result"],
+    url: json["url"],
+    message: json["message"],
+  );
+
+  Map<String, dynamic> toJson() => {
+    "result": result,
+    "url": url,
+    "message": message,
+  };
+}