graphql_repository

Description:

graphql repository

GraphQL Repository #
A flexible and easy-to-use GraphQL client repository for Flutter applications.
Features #

Easy setup and configuration
Support for queries, mutations, and subscriptions
Built-in error handling and logging
Customizable authentication

Usage #
import 'package:graphql_repository/graphql_repository.dart';

// Configure GraphQLClient
final graphQLClientConfig = GraphQLClientConfiguration(
endpoint: 'https://your-graphql-endpoint.com/graphql',
getToken: () async {
// Fetch token logic, e.g., from secure storage
return 'your-auth-token';
},
);

final client = graphQLClientConfig.createClient();

// Wrap the app with GraphQLProvider
return GraphQLProvider(
client: ValueNotifier<GraphQLClient>(client),
child: MaterialApp(
title: 'Your App Title',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
),
);





class MyRepository extends GraphQLBaseRepository {
MyRepository(GraphQLClientConfiguration config) : super(config);

// Method to fetch a user by ID
Future<Map<String, dynamic>> getUser(String id) async {
const query = '''
query GetUser(\$id: ID!) {
user(id: \$id) {
id
name
email
}
}
''';

final result = await performQuery<Map<String, dynamic>>(
query,
variables: {'id': id},
);

return result['user'];
}

// Method to update user information
Future<Map<String, dynamic>> updateUser(String id, String name, String email) async {
const mutation = '''
mutation UpdateUser(\$id: ID!, \$name: String!, \$email: String!) {
updateUser(id: \$id, name: \$name, email: \$email) {
id
name
email
}
}
''';

final result = await performMutation<Map<String, dynamic>>(
mutation,
variables: {'id': id, 'name': name, 'email': email},

);

return result['updateUser'];
}

// Method to subscribe to user updates
Stream<Map<String, dynamic>> userUpdates(String id) {
const subscription = '''
subscription OnUserUpdated(\$id: ID!) {
userUpdated(id: \$id) {
id
name
email
}
}
''';

return performSubscription<Map<String, dynamic>>(
subscription,
variables: {'id': id},

);
}
}

// Extract headers from the response context
final result = response.data!['something'];
final HttpLinkResponseContext? responseContext =
result.context.entry<HttpLinkResponseContext>();
final Map<String, String?> responseHeaders = responseContext?.headers ?? {};
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