Greetings! I was too busy past couple of days and lost my way of continuing Microservices series. So I decided to add simple dummy services service-a and service-b. Other than that, there is no change except the github repo. https://github.com/slmanju/simple-microservice In Microservices architecture we are dealing with many apis which work along or work with other services. Imagine that we are going to create a mobiile client using these client it will be very difficult to manage all services by that client. Or, imagine we expose our apis so that anyone can create their own client. This is a good place to introduce a another service which act as a gateway to all other services. Third party clients will know only about this api. Not only this, we can solve some other problems using Api Gateway. Single entry point to all the services. Common place to log request and responses. Authentication users in single place. Rate limits. Add common filters. Hide internal services.