Mastering WidgetKit in SwiftUI 4, iOS 16 with Dynamic Island - Stock Service

This video tutorial guides viewers through creating a stock service in Swift. It covers setting up the file with correct target membership, defining a struct with an async function to fetch stock data, constructing a URL with error handling, using URL sessions to retrieve data, and decoding JSON responses. The tutorial concludes with a preview of creating a stock view in the next video.

What is the first step in creating the stock service?

• Select the Swift file and ensure target membership.

• Write the async function.

• Decode the JSON response.

• Test the API endpoint.

What keyword is used to indicate that a function can throw errors?

• async

• await

• guard

• throws

How is the URL constructed in the stock service?

• Directly from the API response.

• Under a guard statement with string interpolation.

• By concatenating strings.

• Using a simple string.

What is checked to ensure a valid response from the API?

• The response is an HTTP URL response with status code 200.

• The response time is less than 2 seconds.

• The response is not null.

• The response contains JSON data.

What is the final step before using the stock service?

• Logging the API responses.

• Integrating the service into a stock app view.

• Testing the service with different stock symbols.

• Creating a user interface for the service.