[Bref] Retrieve the authorization informations from api-gateway

[dmerchier]

Hello,

I would like to retrieve the authorization informations from api-gateway when I'm using the bref runtime.

From a bref layer (for example php-74-fpm), I could retrieve this information with $_SERVER['LAMBDA_REQUEST_CONTEXT'] (see Bref\Event\Http\FpmHandler.php)

[Nyholm]

Excellent question!
If you are using a PSR-11 application you can get these from the Context object directly. However, if you are using a Symfony or Laravel kernel, then you will soon be able to get it by $request->server->get('LAMBDA_REQUEST_CONTEXT').

I just added a PR to fix this.

I see that you just added #78. =)