what happened

What happened?

Based on the provided context, here are some key highlights from the sessions mentioned:

1. Explore the Swift on Server ecosystem:

   • Building a Service: Demonstrated how to create a service using Swift, including setting up a Vapor application and handling HTTP requests (Build a service).
   • Database Drivers: Discussed how to safely interact with databases using Swift, including preventing SQL injection attacks through Swift's string interpolation feature (Database drivers).
   • Observability: Highlighted the importance of observability in troubleshooting, including logging, metrics, and tracing to diagnose issues like PSQL errors (Observability).

2. Track model changes with SwiftData history:

   • Fundamentals: Explained how SwiftData history records transactions and changes, preserving the order of changes and using tokens to track the last processed transaction (Fundamentals).
   • Transactions and Changes: Detailed how transactions group changes and how tokens can become expired if associated data is deleted (Transactions and changes).
   • Custom Stores: Provided guidance on implementing custom data stores that support SwiftData history, including defining transactions, changes, and tokens (Custom stores).

3. Meet FinanceKit:

   • Best Practices: Discussed best practices for handling financial data, including using history tokens to manage long-running queries and avoid duplicated events (Best practices).

4. Explore App Store server APIs for In-App Purchase:

   • Subscriptions and Offers: Announced a new version of the transaction history endpoint that returns all transactions for a customer, enabling new use cases like showing full purchase history and auditing consumable balances (Subscriptions and Offers).

These sessions cover a range of topics from server-side Swift development to tracking data changes and handling financial transactions, providing developers with tools and best practices to enhance their applications.