Langfuse SDK Patterns Overview Production-quality patterns for the Langfuse SDK: singleton clients, the wrapper, for nested traces, session tracking, graceful shutdown, and error-safe tracing. Prerequisites - Completed setup - Understanding of async/await patterns - For v4+: , , Instructions Pattern 1: Singleton Client with Graceful Shutdown Legacy v3 singleton: Pattern 2: Wrapper for Existing Functions The wrapper is the most ergonomic way to add tracing. It wraps any function and auto-creates a span. Pattern 3: for Inline Control Use when you need fine-grained control over observation lifec…