tzolov/playground-flight-booking

Demonstrates retrieval-augmented generation (RAG) for policy compliance and function calling to invoke Java methods as tools, enabling the LLM to perform booking actions. Supports pluggable LLM backends—OpenAI, Vertex AI Gemini, Azure OpenAI, Groq, and Anthropic Claude—through Spring AI's abstraction layer. Uses pgvector for semantic search over terms and conditions, grounding the expert system in domain knowledge while maintaining provider flexibility.

327 stars.