API functions to sync local progress

ios/App/Shared/util/Extensions.swift

@@ -6,8 +6,8 @@
 //
 
 import Foundation
-import SwiftUI
 import RealmSwift
+import Capacitor
 
 extension String: Error {}
 
@@ -31,6 +31,14 @@ extension Collection where Iterator.Element: Encodable {
     }
 }
 
+extension CAPPluginCall {
+    func getJson<T: Decodable>(_ key: String, type: T.Type) -> T? {
+        guard let value = getString(key) else { return nil }
+        guard let valueData = value.data(using: .utf8) else { return nil }
+        return try? JSONDecoder().decode(type, from: valueData)
+    }
+}
+
 extension DispatchQueue {
     static func runOnMainQueue(callback: @escaping (() -> Void)) {
         if Thread.isMainThread {