add shipments

lib/data/provider/package_data_provider.dart

@@ -41,6 +41,13 @@ class PackageDataProvider {
         payload: {"id": package.id}, token: await getToken());
   }
 
+  Future<void> changeDeliveryAddress(
+      String packageID, String deliveryID) async {
+    return await requestAPI("/packages/change_delivery_address", "PUT",
+        payload: {"package_id": packageID, "deliver_address_id": deliveryID},
+        token: await getToken());
+  }
+
   Future<List<Package>> searchPackage(String term) async {
     if (term == null || term == '') return List();
 

lib/data/services/package_imp.dart

@@ -48,4 +48,9 @@ class PackageServiceImp implements PackageService {
   Future<void> deleteProcessing(Package package) {
     return packageDataProvider.deleteProcessing(package);
   }
+
+  @override
+  Future<void> changeDeliveryAddress(String packageID, String deliveryID) {
+    return packageDataProvider.changeDeliveryAddress(packageID, deliveryID);
+  }
 }

lib/data/services/package_service.dart

@@ -8,4 +8,5 @@ abstract class PackageService {
   Future<void> updateProcessing(Package package);
   Future<void> deleteProcessing(Package package);
   Future<List<Package>> searchPackage(String term);
+  Future<void> changeDeliveryAddress(String packageID, String deliveryID);
 }