Errors, Callbacks and SDK Close

FinBoxLending/LendingView.swift

@@ -14,6 +14,8 @@ public struct LendingView: View {
     // Result Function
     public let lendingResult : ((FinBoxJourneyResult) -> Void)
 
+    @Environment(\.dismiss) private var dismiss
+
     public init(lendingResult: @escaping (FinBoxJourneyResult) -> Void) {
         self.lendingResult = lendingResult
     }
@@ -45,7 +47,8 @@ public struct LendingView: View {
 
     func handleError(error: String) -> some View {
         lendingResult(FinBoxJourneyResult(code: "", screen: "", message: error))
-        return Text("\(String(describing: error))")
+        dismiss()
+        return EmptyView()
     }
 
 }

FinBoxLending/network/APIService.swift

@@ -10,6 +10,7 @@ import Foundation
 struct APIService {
 
     static let shared = APIService()
+    private static var callbackSent = CallbackSent()
 
     /// Constructs the URL for the session.
     /// - Returns: The URL for the session, formed by combining the `BASE_URL` and `END_POINT`
@@ -49,7 +50,7 @@ struct APIService {
         let task = URLSession.shared.dataTask(with: requestParams) { data, response, error in
 
             if let error = error {
-                self.handleError(completion: completion, error: error)
+                self.handleError(completion: completion, error: error.localizedDescription)
                 return
             }
 
@@ -71,7 +72,7 @@ struct APIService {
                 // Convert the response to object
                 sessionResponse = try JSONDecoder().decode(SessionResponse.self, from: data)
             } catch {
-                self.handleClientError(completion: completion, error: error)
+                self.handleError(completion: completion, error: "JSON Error")
             }
 
             // Handle the HTTP response
@@ -142,32 +143,52 @@ struct APIService {
                               hidePoweredBy: userPref.hidePoweredBy, sdkType: "hybrid:ios:0.0.1")
     }
 
+    /// Creates SessionResult for Callback
+    /// - Parameters
+    ///     - error (Optional) : String error
+    ///     - sessionURL (Optional): String URL
+    /// - Returns
+    ///     - SessionResult object with only error or sessionURL
+    func getResult(error: String?, sessionURL: String?) -> SessionResult {
+        if (error != nil && sessionURL == nil) {
+            return SessionResult(error: error, sessionURL: nil)
+        } else {
+            return SessionResult(error: nil, sessionURL: sessionURL)
+        }
+    }
+
     /// Handles client errors
     func handleClientError(completion: @escaping (SessionResult) -> Void, error: Any) {
         debugPrint("Response Error Client: \(error as Any)")
-        let result = SessionResult(error: String(describing: error), sessionURL: nil)
-        sendCallback(completion: completion, result: result)
+        sendCallback(completion: completion, result: getResult(error: String(describing: error), sessionURL: nil))
     }
 
     /// Handles server errors
     func handleServerError(completion: @escaping (SessionResult) -> Void, error: Any) {
         debugPrint("Response Error Server: \(String(describing: error))")
-        let result = SessionResult(error: String(describing: error), sessionURL: nil)
-        sendCallback(completion: completion, result: result)
+        sendCallback(completion: completion, result: getResult(error: String(describing: error), sessionURL: nil))
     }
 
     /// Handles generic errors
     func handleError(completion: @escaping (SessionResult) -> Void, error: Any) {
         debugPrint("Response Error Generic: \(String(describing: error))")
-        let result = SessionResult(error: String(describing: error), sessionURL: nil)
-        sendCallback(completion: completion, result: result)
+        sendCallback(completion: completion, result: getResult(error: String(describing: error), sessionURL: nil))
     }
 
     /// Sends an asynchronous callback after a (slight-possible) delay.
     /// - Parameters:
     ///   - completion: A closure to be executed when the asynchronous operation completes. It takes a `String` parameter.
     ///   - result: The result to be passed to the completion closure.
     func sendCallback(completion: @escaping (SessionResult) -> Void, result: SessionResult) {
+        // Check if the callback has already been sent
+        guard !APIService.callbackSent.status else {
+            return
+        }
+
+        // Update the sent status
+        APIService.callbackSent.updateStatus()
+
+        // Send callback
         DispatchQueue.global().asyncAfter(deadline: .now()) {
             completion(result)
         }

FinBoxLending/network/CallbackSent.swift

@@ -0,0 +1,20 @@
+//
+//  CallbackSent.swift
+//  FinBoxLending
+//
+//  Created by Ashutosh Jena on 13/02/24.
+//
+
+import Foundation
+
+/// Struct to hold callback sent status
+struct CallbackSent {
+
+    /// Flag to hold status
+    var status = false
+
+    /// Function which updates the sent status
+    mutating func updateStatus() {
+        status = true
+    }
+}