Is https://hc.apache.org/httpcomponents-asyncclient-dev/ any good? It claims async everything.

I’m primarily worried about OAuth2, where resource server has to go to authorisation server to validate access token. In highload scenario there could be numerous http client requests, and they better be fully async. Async streaming is not very important here, since payload is tiny, but connecting and waiting for response should better not hold a thread.

Which web-framework is recommended for kotlin project?

Spring?

Play?

or anything else?

i think play framework is better than spring, but i’m not sure play works well with kotlin.

And i want reliable framework.

Which framework is used in JB?

Play doesn’t work with Kotlin, at least not without some magic. I wasn’t able to do it in some nice way, mainly because sbt requirements, scala all the way down.

You can use whatever Java framework you like - Spring, sparkjava, ninjaframework, whatever. We are using Kara, but currently working on a fresh take on it called Ktor. It’s not ready yet, so don’t fit “reliable” requirement. You can try kovert by @apatrida as well.

@rokee: Kovert is reliable because vert.x which it sits on top of is reliable and it is fairly thin layer. It is mostly missing auth roles and integration with auth handlers, which is coming soon.

@rokee Dropwizard works very well if your web app consists largely of a JSON API and is a single page app (although traditional views are supported). Deployment is a single fat jar that bundles jetty internally. The great thing about Dropwizard is that it's tuned for production out of the box including things like metrics and health checks.

I’m working with Dropwizard in a project now

not kotlin based but Java8

I don’t like it too much

@dh44t: What don’t you like about it?

I’ll compared with Spring Boot, (and I’m biased, take my words with a pinch of salt)

Looks like a half baked solution for anything more complicated than a really simple app

You’re brave, I can’t imagine I’d ever want to touch anything with “Spring” in it willfully

I have 3 Spring certifications including “Trainer"

so...

simple example

I need to include sharedVariable in Freemarker

that is the default view type in DW

I need to copy source code from DW classes in order to modify it

‘cause there is no way to configure it

something that in Spring is an one line

and I don’t finished yet

the DI module for Guice isn’t compatible with the latest version