Suggested implementation for Cart Abandonment

CartAbandonment.java

  /* Implement and call when the user adds an item to the cart */
  protected void addedItemToCart() {
    Carnival.logEvent("Add To Cart");
    AttributeMap attributes = new AttributeMap();
    attributes.putBoolean("add_to_cart", true);
    attributes.putBoolean("checkout_complete", false);
    Carnival.setAttributes(attributes, new Carnival.AttributesHandler() {
      @Override
      public void onSuccess() {
        // Success
      }

      @Override
      public void onFailure(Error error) {
        // Add your logic to retry in case of error
      }
    });
  }

  /* Implement and call when there are no items in the cart */
  protected void clearedCart() {
    Carnival.removeAttribute("add_to_cart", new Carnival.AttributesHandler() {
      @Override
      public void onSuccess() {
        // Success
      }

      @Override
      public void onFailure(Error error) {
        // Add your logic to retry in case of error
      }
    });

    Carnival.removeAttribute("checkout_complete", new Carnival.AttributesHandler() {
      @Override
      public void onSuccess() {
        // Success
      }

      @Override
      public void onFailure(Error error) {
        // Add your logic to retry in case of error
      }
    });
  }
  
  /* Implement and call on the Checkout Complete/Order Confirmation screen */
  protected void completedCheckout() {
    Carnival.logEvent("Checkout complete");
    Carnival.removeAttribute("add_to_cart", new Carnival.AttributesHandler() {
      @Override
      public void onSuccess() {
        // Success
      }

      @Override
      public void onFailure(Error error) {
        // Add your logic to retry in case of error
      }
    });

    Carnival.removeAttribute("checkout_complete", new Carnival.AttributesHandler() {
      @Override
      public void onSuccess() {
        // Success
      }

      @Override
      public void onFailure(Error error) {
        // Add your logic to retry in case of error
      }
    });
  }

CartAbandonment.swift

  /* Implement and call when the user adds an item to the cart */
  func addedItemToCart() {
    Carnival.logEvent("Add To Cart")
    let attributes = CarnivalAttributes()
    attributes.setBool(true, forKey: "add_to_cart")
    attributes.setBool(false, forKey: "checkout_complete")
    Carnival.setAttributes(attributes) { (error) in
      if error != nil {
        print("\(error!.localizedDescription)")
      }
    }
  }
  
  /* Implement and call when there are no items in the cart */
  func clearedCart() {
    Carnival.removeAttribute(withKey: "added_items", error: nil)
    Carnival.removeAttribute(withKey: "checkout_complete") { (error) in
      if error != nil {
        print("\(error!.localizedDescription)")
      }
    }
  }

  /* Implement and call on the Checkout Complete/Order Confirmation screen */  
  func completedCheckout() {
    Carnival.logEvent("Checkout complete")
    Carnival.removeAttribute(withKey: "added_items") { (error) in
      if error != nil {
        print("\(error!.localizedDescription)")
      }
    }
    
    Carnival.removeAttribute(withKey: "checkout_complete") { (error) in
      if error != nil {
        print("\(error!.localizedDescription)")
      }
    }
  }