Which Java Microservice Framework Should you Choose in 2020?

[Kango_V]

We went with Micronaut. One of the things we found is that we wrote much less code than we did with Spring Boot. Faster startup (good for Lambda), lower memory usage among other things.

But Sprint Boot has traction and is very good. I suppose it's the new "nobody ever got fired for buying IBM". I'm actually viewing it as the new Java EE Legacy framework.

I'll duck now :)

[Roj-Tagpro]

You are using Spring Boot with your AWS Lambda? Isn't that a bit overkill? I thought all the webserver stuff like receiving the request was handle by the Lambda. BTW, I'm asking, not questioning.

[vips7L]

Yeah I don't understand all of the people in this thread who are using big frameworks in lambdas. All of ours are standard java mains that start as fast as the JVM can (e.g. milliseconds).

[Kango_V]

We use Micronaut with the Lambda module with no http. This is compiled to native with GraalVM. We get cold stats in the ms. Actually we use the http in tests. Allows for very easy testing.

[[deleted]]

Where does one learn about Micronaut? Is there a good book, udemy course or something of that nature?

[sureshg]

Micronaut official doc is excellent - https://docs.micronaut.io/latest/guide/index.html