Exporting data from Unified Logging System in Swift

We discussed building a proper logging system instead of using the print function in the previous post. Apple provides us a framework to utilize its logging system backed by on-disk persistence. This week we will talk about exporting logs from the user devices by leveraging the power of the Unified Logging System.

Logging in Swift

We encounter bugs that are very hard to catch in the debugger from time to time. For example, it might occur only after a few days of app usage. In this case, running an app in a simulator and testing a feature doesn’t make sense. We need to understand what the user has done in the application and how it responds to user actions in this situation. Logging is an excellent technique to track and understand user actions through the app. This week we will learn how to implement proper logging functionality in our apps.

Zone sharing in CloudKit

Last week we talked about the basics of CloudKit. We learned how to save and fetch data from the storage in the cloud and how to sync the data between devices. This week I want to cover the only reason why I have chosen CloudKit instead of Firebase, and it is data sharing between users.

Getting started with CloudKit

CloudKit is an easy way to store data in the cloud, sync between multiple devices, and share it between the app’s users. This week we will learn how to start using CloudKit in the app to save and fetch data from the cloud and sync between multiple user devices.

Functional core Imperative shell in Swift. Unidirectional Flow.

A few weeks ago, we talked about the idea of Functional core and Imperative shell in Swift. The goal is to extract the pure logic using value types and keep side effects in the thin object layer. This week, we will look at how we can apply this approach in an opinionated way by using unidirectional flow.

State restoration in SwiftUI

We always want to provide a great user experience in our apps. The system can shut down your app when the user leaves it and when the user relaunches your app, the system creates it from scratch, and the current state of your app is lost. This is a bad user experience. To avoid this kind of situation, we should provide a state restoration mechanism. This week we will learn how to implement state restoration in SwiftUI.

Functional core Imperative shell in Swift

We love value types because they provide us with safety and predictability, allowing us to reason about the code we write. But we still need objects to hold and mutate our app’s shared state. This week, we will discuss modeling our app’s logic by leveraging the value and reference semantics.

Redux-like state container in SwiftUI. Swift concurrency model.

Over the last two years, I have actively used unidirectional flow to develop my apps. I covered the approach I use in the series of posts about building Redux-like state containers. This week I want to share with you how this approach adapts to the latest changes in Swift by applying the new concurrency model.

Microapps architecture in Swift. Dependency Injection.

We covered a lot of things related to microapps architecture in Swift during the last month. I would love to finalize the series of posts by touching another essential edge of the approach: Dependency Injection. This week we will learn how to inject the dependencies into feature modules to improve testability and facilitate Xcode previews.

Microapps architecture in Swift. Resources and localization.

This week we will continue the topic of microapps architecture in Swift by touching on another essential edge of this approach. In this post, we will talk about sharing resources between modules and separating the localization of feature modules.