In this chapter, you learned the basics of microservices. After defining them, you explored what a microservice is and how it functions. You looked at the reasons when to use microservices and when to not use microservices. After looking at current players using microservices, you saw a detailed comparison of a monolithic application and a microservice application. Finally, you learned how to conceptually upgrade a monolithic application to a microservice application. This chapter served as the basis for the rest of this book.
For you to make sure you understand the concepts so far, go through the following questions and answer them as best as you can. It is essential to be able to answer all of them or the rest of this book will make little sense to you.
In the next chapter, you will learn more about the current status of server-side Swift and why it is an excellent choice for backend applications.