Hello, as open api is the main format here. I suggest using quarkus https://quarkus.io/guides/ or https://vertx.io/introduction-to-vertx-and-reactive/ In our experience Vertx.io scales pretty well. https://vertx.io/docs/vertx-web-openapi/java/ https://www.freecodecamp.org/news/an-introduction-to-vert-x-the-fastest-java-framework-today-27d8661ceb14/
Best Regards, Giorgio.
