Added initialize call and fetch token support for android with flutter

android/build.gradle

@@ -56,6 +56,8 @@ android {
         implementation 'com.squareup.retrofit2:retrofit:2.9.0'
         implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
         implementation 'com.squareup.okhttp3:logging-interceptor:4.10.0'
+
+        implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-play-services:1.6.4'
         //TODO: Add Library folder path in implementation's dir
     //    compileOnly fileTree(include: ['*.aar'], dir: '/Users/kausthubh.adhikari/Desktop/SDK-Libraries/androidlibs')
     }

android/src/main/java/com/razorpay/flutter_customui/RazorpayDelegate.java

@@ -31,6 +31,7 @@
 import com.razorpay.ValidateVpaCallback;
 import com.razorpay.upi.AccountBalance;
 import com.razorpay.upi.BankAccount;
+import com.razorpay.upi.TurboSessionDelegate;
 import com.razorpay.upi.UpiAccount;
 import com.razorpay.upi.Bank;
 import com.razorpay.upi.Card;
@@ -52,11 +53,14 @@
 import io.flutter.plugin.common.EventChannel;
 import io.flutter.plugin.common.MethodChannel.Result;
 import io.flutter.plugin.common.PluginRegistry.ActivityResultListener;
+import kotlin.Unit;
+import kotlin.jvm.functions.Function1;
 
 import static com.razorpay.flutter_customui.Constants.PAYMENT_DATA;
 
 import com.razorpay.UpiTurboPrefetchLinkAccountsResultListener;
 import com.razorpay.upi.AllAccounts;
+import com.razorpay.upi.model.Session;
 
 public class RazorpayDelegate implements ActivityResultListener {
     private Activity activity;
@@ -91,6 +95,18 @@ public class RazorpayDelegate implements ActivityResultListener {
     Gson gson;
     private Handler uiThreadHandler = new Handler(Looper.getMainLooper());
 
+    // TurboSessionDelegate
+    private Function1<? super Session, Unit> sessionCompletion = null;
+    TurboSessionDelegate turboSessionDelegate = new TurboSessionDelegate() {
+        @Override
+        public void fetchToken(@NonNull Function1<? super Session, Unit> completion) {
+            sessionCompletion = completion;
+            HashMap<Object, Object> reply = new HashMap<>();
+            reply.put("responseEvent", "refreshSessionToken");
+            onEventSuccess(reply);
+        }
+    };
+
     @RequiresApi(api = Build.VERSION_CODES.KITKAT)
     public RazorpayDelegate(Activity activity) {
         this.activity = activity;
@@ -101,6 +117,7 @@ void init(String key, Result result) {
         this.key = key;
         this.pendingResult = result;
         razorpay = new Razorpay(activity, key);
+        razorpay.upiTurbo.initialize(this.turboSessionDelegate);
     }
 
     void submit(final JSONObject payload, Result result) {
@@ -766,4 +783,10 @@ public void onError(@NonNull JSONObject jsonObject) {
         });
 
     }
+
+    public void updateToken(String token) {
+        if (sessionCompletion != null) {
+            sessionCompletion.invoke(new Session(token));
+        }
+    }
 }

android/src/main/java/com/razorpay/flutter_customui/RazorpayPlugin.java

@@ -218,6 +218,10 @@ public void onMethodCall(@NonNull MethodCall call, @NonNull final Result result)
                 razorpayDelegate.setPrefetchUPIPinWithUI(bankAccountStr, result, eventSink);
                 break;
 
+            case "refreshSessionToken":
+                String newToken = call.arguments().toString();
+                razorpayDelegate.updateToken(newToken);
+
             default:
                 Log.d(TAG, "no method");
         }

lib/model/upi_account.dart

@@ -1,89 +1,87 @@
 import 'bank_account.dart';
 
 class UpiAccount {
-   String? accountNumber;
-   String? bankLogoUrl;
-   String? bankName;
-   String? bankPlaceholderUrl;
-   String? ifsc;
-   int? pinLength;
-   Vpa? vpa;
-   String? type;
+  String? accountNumber;
+  String? bankLogoUrl;
+  String? bankName;
+  String? bankId;
+  String? bankPlaceholderUrl;
+  String? ifsc;
+  int? pinLength;
+  Vpa? vpa;
+  String? type;
 
-
-  UpiAccount({
-     this.accountNumber,
-    this.bankLogoUrl,
-     this.bankName,
-     this.bankPlaceholderUrl,
-     this.ifsc,
-     this.pinLength,
-     this.vpa,
-     this.type
-  });
+  UpiAccount(
+      {this.accountNumber,
+      this.bankLogoUrl,
+      this.bankName,
+      this.bankId,
+      this.bankPlaceholderUrl,
+      this.ifsc,
+      this.pinLength,
+      this.vpa,
+      this.type});
 
   factory UpiAccount.fromJson(Map<String, dynamic> json) => UpiAccount(
-    accountNumber: json['account_number'],
-    bankLogoUrl: json['bank_logo_url'],
-    bankName: json['bank_name'],
-    bankPlaceholderUrl: json['bankPlaceholderUrl'],
-    ifsc: json['ifsc'],
-    pinLength: json['pinLength'],
-    vpa: Vpa.fromJson(json['vpa']),
-    type: json['type']
-  );
+      accountNumber: json['account_number'],
+      bankLogoUrl: json['bank_logo_url'],
+      bankName: json['bank_name'],
+      bankId: json['bank_id'],
+      bankPlaceholderUrl: json['bankPlaceholderUrl'],
+      ifsc: json['ifsc'],
+      pinLength: json['pinLength'],
+      vpa: Vpa.fromJson(json['vpa']),
+      type: json['type']);
 
   Map<String, dynamic> toJson() => {
-    'account_number': accountNumber,
-    'bank_logo_url': bankLogoUrl,
-    'bank_name': bankName,
-    'bankPlaceholderUrl': bankPlaceholderUrl,
-    'ifsc': ifsc,
-    'pinLength': pinLength,
-    'vpa': vpa?.toJson(),
-    'type': type
-  };
-
+        'account_number': accountNumber,
+        'bank_logo_url': bankLogoUrl,
+        'bank_name': bankName,
+        'bank_id': bankId,
+        'bankPlaceholderUrl': bankPlaceholderUrl,
+        'ifsc': ifsc,
+        'pinLength': pinLength,
+        'vpa': vpa?.toJson(),
+        'type': type
+      };
 }
 
 class Vpa {
-   String? address;
-   BankAccount? bankAccount;
-   String? handle;
-   bool? active;
-   bool? isDefault;
-   bool? validated;
-   String? username;
+  String? address;
+  BankAccount? bankAccount;
+  String? handle;
+  bool? active;
+  bool? isDefault;
+  bool? validated;
+  String? username;
 
   Vpa({
-     this.address,
-     this.bankAccount,
-     this.handle,
-     this.active,
-     this.isDefault,
-     this.validated,
-     this.username,
+    this.address,
+    this.bankAccount,
+    this.handle,
+    this.active,
+    this.isDefault,
+    this.validated,
+    this.username,
   });
 
   factory Vpa.fromJson(Map<String, dynamic> json) => Vpa(
-    address: json['address'],
-    bankAccount: BankAccount.fromJson(json['bank_account']),
-    handle: json['handle'],
-    active: json['active'],
-    isDefault: json['default'],
-    validated: json['validated'],
-    username: json['username'],
-  );
+        address: json['address'],
+        bankAccount: BankAccount.fromJson(json['bank_account']),
+        handle: json['handle'],
+        active: json['active'],
+        isDefault: json['default'],
+        validated: json['validated'],
+        username: json['username'],
+      );
 
   Map<String, dynamic> toJson() => {
-    'address': address,
-    'bank_account': bankAccount?.toJson(),
-    'handle': handle,
-    'active': active,
-    'default': isDefault,
-    'validated': validated,
-    'username': username,
-  };
+        'address': address,
+        'bank_account': bankAccount?.toJson(),
+        'handle': handle,
+        'active': active,
+        'default': isDefault,
+        'validated': validated,
+        'username': username,
+      };
 }
-
-

lib/upi_turbo.dart

@@ -368,6 +368,7 @@ class UpiTurbo {
             accountNumber: upiAccount.accountNumber,
             bankLogoUrl: upiAccount.bankLogoUrl,
             bankName: upiAccount.bankName,
+            bankId: upiAccount.bankId,
             bankPlaceholderUrl: upiAccount.bankPlaceholderUrl,
             ifsc: upiAccount.ifsc,
             pinLength: upiAccount.pinLength,