fix: Retire the dynamic configuration extracted from the pubspec.yaml file

pay_platform_interface/lib/core/payment_configuration.dart

@@ -49,7 +49,7 @@ class PaymentConfiguration {
   final PayProvider provider;
 
   /// The configuration parameters for a given payment provider.
-  final Future<Map<String, dynamic>> _parameters;
+  final Map<String, dynamic> _parameters;
 
   /// The raw configuration provided
   final String _rawConfigurationData;
@@ -105,7 +105,7 @@ class PaymentConfiguration {
           (s) async => jsonDecode(s) as Map<String, dynamic>);
 
   /// Returns the core configuration map in this object.
-  Future<Map<String, dynamic>> parameterMap() async {
+  Map<String, dynamic> parameterMap() {
     return _parameters;
   }
 

pay_platform_interface/lib/pay_channel.dart

@@ -43,8 +43,7 @@ class PayMethodChannel extends PayPlatform {
   @override
   Future<bool> userCanPay(PaymentConfiguration paymentConfiguration) async {
     return await _channel.invokeMethod(
-            'userCanPay', jsonEncode(await paymentConfiguration.parameterMap()))
-        as bool;
+        'userCanPay', jsonEncode(paymentConfiguration.parameterMap())) as bool;
   }
 
   /// Shows the payment selector to complete the payment operation.
@@ -59,7 +58,7 @@ class PayMethodChannel extends PayPlatform {
     List<PaymentItem> paymentItems,
   ) async {
     final paymentResult = await _channel.invokeMethod('showPaymentSelector', {
-      'payment_profile': jsonEncode(await paymentConfiguration.parameterMap()),
+      'payment_profile': jsonEncode(paymentConfiguration.parameterMap()),
       'payment_items': paymentItems.map((item) => item.toMap()).toList(),
     }) as String;
 

pay_platform_interface/lib/util/configurations.dart

@@ -12,21 +12,19 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import 'package:flutter/services.dart';
-
-import 'package:yaml/yaml.dart';
 import 'package:pay_platform_interface/core/payment_configuration.dart';
+import 'package:pay_platform_interface/generated/package_info.dart';
 
 /// A utility class to handle configuration objects and metadata associated
 /// with this plugin.
 class Configurations {
   /// Complements the payment configuration object with metadata about the
   /// package.
   ///
-  /// Takes the configuration included in [config] and returns and updated
-  /// version of the object wrapped in a [Future] with additional metadata.
-  static Future<Map<String, dynamic>> extractParameters(
-      Map<String, dynamic> configuration) async {
+  /// Takes the configuration included in [configuration] and returns an updated
+  /// version of the object with additional metadata.
+  static Map<String, dynamic> extractParameters(
+      Map<String, dynamic> configuration) {
     PayProvider provider =
         PayProviders.fromString(configuration['provider'] as String)!;
     Map<String, dynamic> configurationParams =
@@ -43,7 +41,7 @@ class Configurations {
           ...(configurationParams['merchantInfo'] ?? {}) as Map,
           'softwareInfo': {
             'id': 'flutter/pay-plugin',
-            'version': (await _getPackageConfiguration())['version']
+            'version': PackageInfo.version
           }
         };
 
@@ -53,11 +51,4 @@ class Configurations {
         return updatedPaymentConfiguration;
     }
   }
-
-  /// Retrieves package information from the `pubspec.yaml` file as a [Map].
-  static Future<Map<dynamic, dynamic>> _getPackageConfiguration() async {
-    final configurationFile = await rootBundle
-        .loadString('packages/pay_platform_interface/pubspec.yaml');
-    return loadYaml(configurationFile) as Map<dynamic, dynamic>;
-  }
 }

pay_platform_interface/test/payment_configuration_test.dart

@@ -47,7 +47,7 @@ void main() {
   test('Load payment configuration from a string', () async {
     final configuration = PaymentConfiguration.fromJsonString(_payConfigString);
     expect(configuration.provider, _providerGooglePay);
-    expect(await configuration.parameterMap(), isNotEmpty);
+    expect(configuration.parameterMap(), isNotEmpty);
   });
 
   test('Load payment configuration from an asset', () async {
@@ -56,15 +56,15 @@ void main() {
         profileLoader: _testProfileLoader);
 
     expect(configuration.provider, _providerGooglePay);
-    expect(await configuration.parameterMap(), isNotEmpty);
+    expect(configuration.parameterMap(), isNotEmpty);
   });
 
   test('Check that software info is included in Google Pay requests', () async {
     final config = await PaymentConfiguration.fromAsset(
         'google_pay_prod_payment_profile.json',
         profileLoader: _testProfileLoader);
 
-    final configParams = await config.parameterMap();
+    final configParams = config.parameterMap();
     expect(configParams.containsKey('merchantInfo'), isTrue);
     expect(configParams['merchantInfo'].containsKey('softwareInfo'), isTrue);