Learning Combine with Swift

Learn how to use Combine—Apple’s newest declarative framework—to request and process data to and from APIs and SwiftUI.

Introduction

• Power up your app with Combine
• What you should know

1. Introduction to Combine

• What is Combine?
• Shift to functional reactive programming
• Overview of SwiftUI
• Advantages of Combine

2. Combine Fundamentals

• Understand the Combine life cycle
• Transmit data with publishers
• Manipulate data with operators
• Consume data with subscribers
• Publish and subscribe to data with subjects
• Publish data once with Future and Just
• Challenge: Create a simple Combine data stream
• Solution: Create a simple Combine data stream

3. Work with REST APIs

• Call REST APIs with DataTaskPublisher
• Handle errors with Combine
• Unit testing and Combine
• Challenge: Use Combine to call an API endpoint
• Solution: Use Combine to call an API endpoint

4. Advanced Concepts

• Manage threads with schedulers
• Work with custom publishers and subscribers
• Throttle publisher data with backpressure
• Abstract Combine implementations with type erasures
• Leverage the Combine advanced operators
• Challenge: Call an API using schedulers and backpressure
• Solution: Call an API using schedulers and backpressure

Conclusion

• Go forth and code