Technology Stack and Libraries

In previous chapters, we discussed the architectural solution of our system, learned what services it would consist of, and saw how they are connected to each other. In this chapter, we will discuss exactly how the services will be created, what technology stack we will use, what architecture we will use to build our services, and what logic we will use to create our classes and use them in the future. We will also discuss modern libraries for solving common problems, such as working with databases. Also in this chapter I will show how to implement the libraries that will be used in both subsystems, such as the state machine and the operation of background jobs.