Document using Gson mapper in Kotlin

👋 hi! I’ve been taking a look at Javalin today, and have been considering converting a tiny ktor project to it (the tl;dr there being that most of the addons to ktor that make it a more complete framework are still labeled “experimental,” and I don’t really need the async capabilities it has).

One stumbling block along the way was that I wanted to use Gson (since my existing resources were already relying on it), but trying to set:

val gson = GsonBuilder().create()
JavalinJson.fromJsonMapper = gson::fromJson

lead to a rather verbose type error.

After googling a bit, I eventually found the example you added to this repo, which appears to work. It would be nice if a link to this could be added to the documentation under “configuring the JSON mapper”, since it took me a while to find that.

[thomasboyt]

Whoops, this slipped my mind. Should be able to do this in the next day or two!

[tipsy]

Should I take over this @thomasboyt ?