fix: track events type in HTTP requests (#117)

Sources/Tracking/CustomerIOImplementation+ScreenViews.swift

@@ -15,6 +15,7 @@ public extension CustomerIOImplementation {
         method_exchangeImplementations(originalMethod, swizzleMethod)
     }
 }
+
 internal extension UIViewController {
     var defaultScreenViewBody: ScreenViewData {
         ScreenViewData()
@@ -43,6 +44,7 @@ internal extension UIViewController {
         }
         CustomerIO.shared.screen(name: name, data: data)
     }
+
     /**
      Finds the top most view controller in the navigation controller/ tab bar controller stack or if it is presented
      */
@@ -60,9 +62,10 @@ internal extension UIViewController {
         }
         return controller
     }
+
     /**
      Finds out the active root view controller by checking whether the app uses window via AppDelegate or SceneDelegate
-     
+
      - returns: If window is not found then this function returns nil else returns the root view controller
      */
     private func activeRootViewController() -> UIViewController? {

Sources/Tracking/Service/Request/TrackRequestBody.swift

@@ -10,6 +10,7 @@ internal struct TrackRequestBody<T: Encodable>: Encodable {
     /// provide keys because we allow customer to set custom JSONEncoder and we want to enforce that the keys
     /// are what the Customer.io API expects. the custom JSONEncoder will be used for `data` encoding.
     private enum CodingKeys: String, CodingKey {
+        case type
         case name
         case data
         case timestamp

Tests/Tracking/Service/Request/TrackRequestBody.swift

@@ -0,0 +1,23 @@
+@testable import CioTracking
+import Foundation
+import SharedTests
+import XCTest
+
+class TrackRequestBodyTest: UnitTest {
+    func test_screenview_expectJsonStringApiRequires() {
+        let attributes = ["logged_in": false]
+        let given = TrackRequestBody(type: .screen, name: "Dashboard", data: attributes,
+                                     timestamp: Date(timeIntervalSince1970: 1642018466))
+        let expectedJson = """
+        {"data":{"logged_in":false},"name":"Dashboard","timestamp":1642018466,"type":"screen"}
+        """
+
+        guard let jsonData = jsonAdapter.toJson(given, encoder: nil), let actualJson = jsonData.string else {
+            return XCTFail()
+        }
+
+        print(actualJson)
+
+        XCTAssertEqual(expectedJson, actualJson)
+    }
+}