Asynchronous paywalls

Pre-fetch and customize paywalls display

The feature described in this section is supported on the following versions and above:

iOS: 3.5.0
Android: 3.5.0
ReactNative: 2.5.0
Cordova: 2.5.0
Flutter: 1.5.0

Purchasely, by default, shows the paywall screen with a loading indicator while fetching the paywall from the network and preparing it for display.

Using Purchasely.fetchPresentation() method, you can pre-fetch the paywall from the network before displaying it. This provides the following benefits:

Display the paywall only after it has been loaded from the network
Handle network errors gracefully
Show a custom loading screen
Pre-load the paywall while users navigate through your app, such as during onboarding screens
Choose not to display a paywall for a specific placement
Display your own paywall

Implementation

Call Purchasely.fetchPresentation for a placement or with a presentation id

An error may be returned if the presentation could not be fetched from the network.
If successful, you will have a PLYPresentation instance containing the following properties

class PLYPresentation(
    id: String?
    placementId: String?
    audienceId: String?
    abTestId: String?
    abTestVariantId: String?
    language: String?
    type: PLYPresentationType
    plans: [String] // get PLYPlan instance with Purchasely.plan("planId")

    // Android SDK only (Kotlin or Java)
    view: PLYTemplateView?
    
    // iOS SDK only (Swift or Objective-C)
    controller: UIViewController?
}

A presentation can be one of the following types:

Normal: The default behavior, a Purchasely paywall created from our console.
Fallback: A Purchasely paywall, but not the one you requested, as it could not be found.
Deactivated: No paywall associated with that placement, possibly for a specific A/B test or audience.
Client: You declared your own paywall in our console and should display it. Use the list of plans to determine which offers to display to your users.

// fetch presentation with id
Purchasely.fetchPresentation(with: "presentationId", fetchCompletion: { presentation, error in
})

// fetch presentation for placement
Purchasely.fetchPresentation(for: "onboarding", fetchCompletion: { presentation, error in
    guard let presentation = presentation, error == nil else {
        print("Error while fetching presentation: \(error?.localizedDescription ?? "unknown")")
        return
    }
    
    if presentation.type == .normal || presentation.type == .fallback {
        let paywallController = presentation.controller
        
        // display paywall controller.
        
    } else if presentation.type == .deactivated {
        
        // nothing to display
        
    } else if presentation.type == .client {
        let presentationId = presentation.id
        let planIds = presentation.plans
        
        // display your own paywall
        
    }
})

[Purchasely fetchPresentationFor:@"onboarding" fetchCompletion:^(PLYPresentation * _Nullable presentation, NSError * _Nullable error) {
        if (error != nil) {
            NSLog(@"Error while fetching presentation: %@", error.localizedDescription);
            return;
        }
        
        if (presentation.type == PLYPresentationTypeNormal || presentation.type == PLYPresentationTypeFallback) {
            PLYPresentationViewController *paywallController = presentation.controller;
            
            // display paywall controller.
            
        } else if (presentation.type == PLYPresentationTypeDeactivated) {
            
            // nothing to display
            
        } else if (presentation.type == PLYPresentationTypeClient) {
            NSString *presentationId = presentation.id;
            NSArray<NSString *> *plans = presentation.plans;
            
            //display your own paywall
            
        }
    } completion:nil];

Purchasely.fetchPresentationForPlacement("onboarding") { presentation, error ->
    if(error != null) {
        Log.d("Purchasely", "Error fetching paywall", error)
        return@fetchPresentationForPlacement
    }

    when(presentation?.type) {
        PLYPresentationType.NORMAL,
        PLYPresentationType.FALLBACK -> {
            val paywallView = presentation.buildView(
                context = this@MainActivity,
                viewProperties = PLYPresentationViewProperties(
                    onClose = {
                        // TODO remove view
                    }
                )
            ) 
            // Display Purchasely paywall
        }
        PLYPresentationType.DEACTIVATED -> {
            // Nothing to display
        }
        PLYPresentationType.CLIENT -> {
            val paywallId = presentation.id
            val planIds = presentation.plans
            // Display your own paywall
        }
        else -> {
            //No presentation, it means an error was triggered
        }
    }
}

Purchasely.fetchPresentationForPlacement(
    this, 
    "onboarding", 
    null,
    (presentation, error) -> {
        if(error != null) {
            Log.d("Purchasely", "Error fetching paywall", error);
            return null;
        }
        
        if(presentation.getType() == PLYPresentationType.NORMAL
            || presentation.getType() == PLYPresentationType.FALLBACK) {
            // display Purchasely paywall
            PLYTemplateView paywallView = presentation.view
        }
        
        if(presentation.getType() == PLYPresentationType.DEACTIVATED) {
            // nothing to display
        }
        
        if(presentation.getType() == PLYPresentationType.CLIENT) {
            String paywallId = presentation.getId();
            List<String> planIds = presentation.getPlans();
            // Display your own paywall
        }
        
        return null;
    }
);

try {
  // Fetch presentation to display
  const presentation = await Purchasely.fetchPresentation({
      placementId: 'onboarding'
  })

  if(presentation.type == PLYPresentationType.DEACTIVATED) {
    // No paywall to display
    return
  }

  if(presentation.type == PLYPresentationType.CLIENT) {
    // Display my own paywall
    return
  }

  //Display Purchasely paywall
  const result = await Purchasely.presentPresentation({
    presentation: presentation
  })
  
  switch (result.result) {
    case ProductResult.PRODUCT_RESULT_PURCHASED:
    case ProductResult.PRODUCT_RESULT_RESTORED:
      if (result.plan != null) {
        console.log('User purchased ' + result.plan.name);
      }

      break;
    case ProductResult.PRODUCT_RESULT_CANCELLED:
      console.log('User cancelled');
      break;
  }

} catch (e) {
  console.error(e);
}

try {
  var presentation = await Purchasely.fetchPresentation("ONBOARDING");

  if (presentation == null) {
    print("No presentation found");
    return;
  }

  if (presentation.type == PLYPresentationType.deactivated) {
    // No paywall to display
    return;
  }

  if (presentation.type == PLYPresentationType.client) {
    // Display my own paywall
    return;
  }

  //Display Purchasely paywall

  var presentResult = await Purchasely.presentPresentation(presentation,
      isFullscreen: false);

  switch (presentResult.result) {
    case PLYPurchaseResult.cancelled:
      {
        print("User cancelled purchased");
      }
      break;
    case PLYPurchaseResult.purchased:
      {
        print("User purchased ${presentResult.plan?.name}");
      }
      break;
    case PLYPurchaseResult.restored:
      {
        print("User restored ${presentResult.plan?.name}");
      }
      break;
  }
} catch (e) {
  print(e);
}

private PurchaselyRuntime.Purchasely _purchasely;

...
_purchasely.FetchPresentation("presentationId",
			OnFetchPresentationSuccess,
			Log,
			"contentId");		
...

private void OnFetchPresentationSuccess(Presentation presentation)
{
	Log("Fetch Presentation Success.");
	LogPresentation(presentation);

	switch (presentation.presentationType)
	{
		case PresentationType.Normal:
		case PresentationType.Fallback:
			_purchasely.PresentPresentationWithId(presentation.id,
				OnPresentationResult,
				OnPresentationContentLoaded,
				OnPresentationContentClosed);
			break;
		case PresentationType.Unknown:
		case PresentationType.Deactivated:
			Log($"Fetched presentation with type: {presentation.presentationType}. Will not show content.");
			break;
		case PresentationType.Client:
			paywall.Show(presentation);
			break;
	}
}

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