Kotlin coroutines provides an alternative approach to write asynchronous applications with Spring Reactive stack, but coding in an imperative style.

• Web Reactive: it is a non-blocking web stack to handle concurrency with a small number of threads and scale with fewer hardware resources.
• MongoDB: is a source-available cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas
• Testcontainer with mongodb: some comparison between embed x testcontainers