Thank you for your answer.
I understand your way, but I already use modularity in the project to separate some features. So, my goal is to convert these modules in microservices, because I want to use same microservice for multiple projects. For example, I need Invoice microservice for project A who are hosted on server X, and for project B who are hosted on server Y, and tomorrow for project C, etc.
I want to extract my current modules in microservices.
