# spring-ai Runnable companion code for the Spring AI articles on [ankurm.com](https://ankurm.com). One directory per module; each module is one commit and carries its own README, tests and captured output. | Module | What it is | Article | |---|---|---| | [`getting-started/`](getting-started) | One `ChatClient` bean, three endpoints (plain call, templated system prompt, streaming), and a test proving `spring.ai.model.chat` switches providers with zero code change. Spring Boot 4.1.1, Spring AI 2.0.1, Java 25. | [Spring AI 2.0 in 10 Minutes: ChatClient on Spring Boot 4.1](https://ankurm.com/spring-ai-2-0-chatclient-boot-4-1/) | | [`rag/`](rag) | Ingest PDFs, chunk, retrieve from pgvector, rerank, answer, check the answer. Spring Boot 4.1.1, Spring AI 2.0.1, Java 25. | [Production-grade RAG with Spring AI](https://ankurm.com/production-rag-spring-ai-java/) and [the complete example](https://ankurm.com/spring-ai-rag-complete-example/) | | [`mcp-server/`](mcp-server) | An order-lookup service exposed as MCP tools, a resource, and a prompt with `@McpTool`/`@McpResource`/`@McpPrompt`, served over Streamable HTTP (Spring AI 2.0's default MCP server transport). Spring Boot 4.1.1, Spring AI 2.0.1, Java 25. | [Build an MCP Server with Spring AI 2.0](https://ankurm.com/spring-ai-2-0-mcp-server-streamable-http/) | Upgrading from Spring AI 1.x: [migration guide](https://ankurm.com/spring-ai-1-to-2-migration-guide/).