Building the .NET AI App Foundation
A small ASP.NET Core foundation for model access, validated configuration, tracing, buffered and streaming HTTP contracts, and future AI capabilities.
Csharp
Use DateTimeOffset for instants that cross system boundaries
Use DateTimeOffset for timestamps sent through APIs, messages, or storage when they must identify one unambiguous point in time.
Indexing Your First Documents
Index documents in Qdrant from .NET with Azure OpenAI or local Ollama embeddings, stable point IDs, useful payloads, and a read-back check.
nameof(List<>) works without a generic type argument in C# 14
C# 14 lets you write nameof(List<>) instead of supplying a type argument just to get the name. The result is still List.
Dependency Injection for AI Components
Register .NET AI clients, tools, prompts, and retrieval services with explicit lifetimes, safe request state, and clear disposal ownership.
Treat the model finish reason as a control signal
Check why generation stopped before accepting model output, and give incomplete responses an explicit application outcome.
Persist ingestion checkpoints at source boundaries
Track progress per consumer and source ordering boundary, and advance each checkpoint only after the corresponding ingestion work succeeds.
Treat provider throttling as a shared capacity signal
Let one throttling response reduce pressure from every caller sharing the affected capacity pool.
await foreach does not automatically use your cancellation token
A CancellationToken in scope does nothing unless the async enumeration receives and observes it.
Preserve the stack trace with throw, not throw ex
Rethrow the current exception with throw; so the original failure location remains visible.