The experimental Spring gRPC project released its 0.3.0 version recently. Jars are available in Maven Central, and you can generate a new project with Spring gRPC at https://start.spring.io. We recommend you do that if you are trying it out because there are some build plugins to configure and the generated project will have that all sorted out for you.

The new release has some updates to factory interfaces on the client side. Also there is now full support for autoconfiguration of client side interceptors, including the ones from Micrometer. On the server side we now support Spring Security with all its rich features provided you use the gRPC Servlet engine. It's nice to be able to do that and just configure all of the container and security requirements like you would for any old Spring Boot application. You can also embed the gRPC endpoints in a "normal" Spring Boot web application, providing your own HTTP endpoints as well as the normal Spring Boot actuators.

The project README has a quick start guide, and there is a more detailed user guide on the Spring web site.

We would like to take this opportunity to thank all those who have contributed to the project. Please give it a try and come to GitHub to provide feedback and get involved in any way you can. We are approaching feature completeness for a full stable (1.0.0) release, but we need more users and more feedback before we do that.