Unified logging updates

Generated on 8/9/2024

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Unified logging updates were discussed in several sessions at WWDC 2024. Here are some key points:

  1. Structured Logging with Swift:

    • Swift log supports structured logging by adding metadata to log messages, which provides additional context when troubleshooting problems. This was highlighted in the session Explore the Swift on Server ecosystem.

  2. OSLog in Xcode:

    • Instead of using print statements, it is recommended to switch to OSLog, which provides a debug level for each message. This allows filtering by text or message type and includes metadata such as error info, debug timestamp, and library. This was discussed in the session Xcode essentials.

  3. Debugging with OSLog:

    • OSLog allows you to jump directly to the line in your source where the log message is coming from, which is not possible with print statements. This feature was also mentioned in the session Xcode essentials.

  4. CloudKit Console Logging:

Relevant Sessions

  1. Explore the Swift on Server ecosystem
  2. Xcode essentials
  3. Use CloudKit Console to monitor and optimize database activity

These sessions provide a comprehensive overview of the updates and best practices for unified logging in the latest Apple development environment.

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Use CloudKit Console to monitor and optimize database activity

Use CloudKit Console to monitor and optimize database activity

Discover the new observability features in CloudKit Console. Learn how to use Telemetry and Logging to troubleshoot and optimize your app. Find out how to set up alerts to monitor your application’s behavior and notifications to stay on top of the container events that are most important to you. To get the most out of this session, we recommend being familiar with CloudKit containers.

Explore the Swift on Server ecosystem

Explore the Swift on Server ecosystem

Swift is a great language for writing your server applications, and powers critical services across Apple’s cloud products. We’ll explore tooling, delve into the Swift server package ecosystem, and demonstrate how to interact with databases and add observability to applications.

Xcode essentials

Xcode essentials

Edit, debug, commit, repeat. Explore the suite of tools in Xcode that help you iterate quickly when developing apps. Discover tips and tricks to help optimize and boost your development workflow.

What’s new in Xcode 16

What’s new in Xcode 16

Discover the latest productivity and performance improvements in Xcode 16. Learn about enhancements to code completion, diagnostics, and Xcode Previews. Find out more about updates in builds and explore improvements in debugging and Instruments.

Migrate your app to Swift 6

Migrate your app to Swift 6

Experience Swift 6 migration in action as we update an existing sample app. Learn how to migrate incrementally, module by module, and how the compiler helps you identify code that’s at risk of data races. Discover different techniques for ensuring clear isolation boundaries and eliminating concurrent access to shared mutable state.