composer require tech-noir-breakfast-club/guzzle-gzip-request-middleware
use GuzzleHttp\Client;
use GuzzleHttp\HandlerStack;
use TechNoirBreakfastClub\GuzzleGzipRequestMiddleware\GzipMiddleware;
$stack = HandlerStack::create();
$stack->push(new GzipMiddleware());
$client = new Client([$stack]);
// Make requests galore...