This is a part of a huge project I was building for a client. In this small example I have effectively explained and work with almost all the features of microsurvices architecture.
The Main system is LumenApiGateway and the microservices are LumenAuthorApi & LumenBookApi. I am using guzzle for consuming api and dusterio/lumen-passport for security.
Also stopping direct access to the microservices, to access the microservies directly the client must pass some kind of token which is registered in the microservice.