step 6 : add package graphql, configure base repo, constant, graph provider.dart

lib/repository/base_repository.dart

@@ -2,11 +2,49 @@ import 'dart:convert';
 import 'dart:io';
 
 import 'package:dio/dio.dart';
+import 'package:graphql/client.dart';
 
 abstract class BaseRepository {
   final Dio dio;
-  BaseRepository({required this.dio});
+  final GraphQLClient graphql;
+  BaseRepository({required this.dio, required this.graphql});
 
+  // POST PAKE GRAPHQL
+  Future<Map<String, dynamic>> postGraphQlMutation(
+      String query, Map<String, dynamic> inpVariables) async {
+    try {
+      final options =
+          MutationOptions(document: gql(query), variables: inpVariables);
+      final QueryResult result = await graphql.mutate(options);
+
+      if (result.hasException) {
+        throw BaseRepositoryException(message: result.exception.toString());
+      }
+
+      return result.data!;
+    } catch (e) {
+      throw BaseRepositoryException(message: e.toString());
+    }
+  }
+
+  Future<Map<String, dynamic>> postGraphQlQuery(
+      String query, Map<String, dynamic> inpVariables) async {
+    try {
+      final options =
+          QueryOptions(document: gql(query), variables: inpVariables);
+      final QueryResult result = await graphql.query(options);
+
+      if (result.hasException) {
+        throw BaseRepositoryException(message: result.exception.toString());
+      }
+
+      return result.data!;
+    } catch (e) {
+      throw BaseRepositoryException(message: e.toString());
+    }
+  }
+
+  // NATIVE POST PAKE DIO
   Future<Map<String, dynamic>> post({
     required Map<String, dynamic> param,
     required String service,
@@ -97,4 +135,4 @@ class BaseRepositoryException implements Exception {
   BaseRepositoryException({
     required this.message,
   });
-}
+}