Developing services in Java, including REST APIs, wasn’t always easy or productive until Spring came along and changed the landscape. Many years have passed since then, and new frameworks have emerged in the community.
One of these frameworks was Micronaut. It’s developed by OCI, the same company behind Grails, and their goal is to help developers create microservices and serverless applications.
There is also Quarkus, another framework that gained popularity over the last year. Developed by RedHat, Quarkus promises to deliver fast startup and less memory usage, two common problems when developing REST services in Java.