Oauth Authentication

Really. I don’t understand as work this Oauth Authentication on suitecrm.
Detai: I use Centos 7

Well. My mini tutorial step by step.

yum install php-pecl-oauth -y

php -i | grep -i oauth
OAuth support => enabled

And I installed composer

curl -sS https://getcomposer.org/installer | php
php composer.phar install --no-dev

I create the keys.

ls /var/www/html/suitecrm/Api/V8/OAuth2/
Entity private.key public.key Repository

And I create my “Passowrd Client” Oauth

How Can I test? or What I need to do?