From 5161be54a2c60047d70352159a48377c9ddabd49 Mon Sep 17 00:00:00 2001
From: Alex Li <github@alexv525.com>
Date: Thu, 11 Jan 2024 11:12:24 +0800
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20`Dio.clone`?=
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---
 dio/lib/src/dio.dart       | 11 +++++++++++
 dio/lib/src/dio_mixin.dart | 14 ++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/dio/lib/src/dio.dart b/dio/lib/src/dio.dart
index e0a13f3fd..bd6af0d8b 100644
--- a/dio/lib/src/dio.dart
+++ b/dio/lib/src/dio.dart
@@ -294,4 +294,15 @@ abstract class Dio {
   /// The eventual method to submit requests. All callers for requests should
   /// eventually go through this method.
   Future<Response<T>> fetch<T>(RequestOptions requestOptions);
+
+  /// Creates a new [Dio] instance with:
+  /// - Current [options]
+  /// - [interceptors]
+  /// - [httpClientAdapter]
+  /// - [transformer]
+  Dio clone({
+    Interceptors? interceptors,
+    HttpClientAdapter? httpClientAdapter,
+    Transformer? transformer,
+  });
 }
diff --git a/dio/lib/src/dio_mixin.dart b/dio/lib/src/dio_mixin.dart
index 8a4b84c7c..3095a2d57 100644
--- a/dio/lib/src/dio_mixin.dart
+++ b/dio/lib/src/dio_mixin.dart
@@ -740,6 +740,20 @@ abstract class DioMixin implements Dio {
     }
     return response;
   }
+
+  @override
+  Dio clone({
+    Interceptors? interceptors,
+    HttpClientAdapter? httpClientAdapter,
+    Transformer? transformer,
+  }) {
+    final dio = Dio(options);
+    dio.interceptors.removeImplyContentTypeInterceptor();
+    dio.interceptors.addAll(interceptors ?? this.interceptors);
+    dio.httpClientAdapter = httpClientAdapter ?? this.httpClientAdapter;
+    dio.transformer = transformer ?? this.transformer;
+    return dio;
+  }
 }
 
 /// A null-check function for function parameters in Null Safety enabled code.