How to make a Laravel 5.1 package in a proper way?

Quite shot Q.

I am writing a short package to communicate with an external Api. Laravel 5.1 doesn't have out of the box methods to send get (http) requests, so i use Guzzle.

I add require { "guzzlehttp/guzzle": "~6.0" } in my package's composer.json

Next step: is to require 'vendor/autoload.php'; Where should i put this in my package?

Whithout that i still get an error:

FatalErrorException in RestClient.php line 31:

Class 'GuzzleHttp\Client' not found

Much appreciate your advice

via Chebli Mohamed