[FIXED] How do I get the current language in Play Framework 2.7

Issue

I'm migrating from Play Framework 2.6 to version 2.7.

In this version, they deprecated a lot of stuff that I was using. One of them is the Lang methods as you can see in their migration page: https://www.playframework.com/documentation/2.8.x/JavaHttpContextMigration27#Lang-and-Messages-methods-in-Http.Context-deprecated

Since I mainly use Play as a plain back-end API, I'm not using any views but for some calls, I need to know what is the current language so I can return translated values.

The problem is that I can't find any ways to get the current language. All the examples show ways to change/clear the current language or how to use it in Views but I just want to query the current language.

For example, my old code:

play.api.i18n.Lang lang = ctx().lang();

Or this:

lang().code()

How can I achieve a similar result with Play 2.7 + ? Thanks

Solution

You may get it by injecting MessagesApi.

Like this in a controller (written directly in this wysiwyg, not tested):

@Inject
private MessagesApi messagesApi;

public Result index(Http.Request request) {
    Lang currentLang = messagesApi.preferred(request).lang()
    String langStr = currentLang.code();

    return ok();
}

Answered By - Eirik Finvold

Answer Checked By - Timothy Miller (PHPFixing Admin)