Micronaut

Dropwizard is a Java framework for developing ops-friendly, high-performance, RESTful web services. Dropwizard pulls together stable, mature libraries from the Java ecosystem into a simple, lightweight package that lets you focus on getting things done. Dropwizard has out-of-the-box support for sophisticated configuration, application metrics, logging, operational tools, and much more, allowing you and your team to ship a production-quality web service in the shortest time possible. Dropwizard straddles the line between being a library and a framework. Its goal is to provide performant, reliable implementations of everything a production-ready web application needs. Because this functionality is extracted into a reusable library, your application remains lean and focused, reducing both time-to-market and maintenance burdens. Because you can’t be a web application without HTTP, Dropwizard uses the Jetty HTTP library to embed an incredibly tuned HTTP server directly into your project.

Han­dle more re­quests with fewer re­sources com­pared to tra­di­tional stacks and frame­works based on block­ing I/O. Vert.x is a great fit for all kinds of ex­e­cu­tion en­vi­ron­ments, in­clud­ing con­strained en­vi­ron­ments like vir­tual ma­chines and con­tain­ers. Peo­ple told you asyn­chro­nous pro­gram­ming is too hard for you? We strive to make pro­gram­ming with Vert.x an ap­proach­able ex­pe­ri­ence, with­out sac­ri­fy­ing cor­rect­ness and per­for­mance. Don’t waste re­sources, in­crease de­ploy­ment den­sity and save money. You pick the model that works best for the task at hand, call­backs, promises, fu­tures, re­ac­tive ex­ten­sions, and (Kotlin) corou­tines. Vert.x is a toolkit, not a frame­work, so it is nat­u­rally very com­pos­able and em­bed­d­a­ble. We have no strong opin­ion on what your ap­pli­ca­tion struc­ture should be like. Se­lect the mod­ules and clients you need and com­pose them as you craft your ap­pli­ca­tion.