Summary

Undertow is a lightweight and powerful web server written in Java, uses non-blocking IO, and also, users can quickly set up fast applications. Using the Undertow Builder API, users can create custom applications that integrate perfectly with core Java and open source technologies. In the current chapter, we covered Undertow architecture and the API through practical samples; we also saw how to create and deploy a microservice application with Undertow, CDI and JPA. Users can take advantage of the Undertow features from the WildFly application server. An Undertow subsystem can be set up to act as static or dynamic load balancer. Undertow perfectly supports the mod_cluster and HTTP2 protocols. Undertow can be a good candidate to start a microservice journey, but for the existing JEE applications, migration to a microprofile can be facilitated by the WildFly-Swarm project...