If a product or a company grows after its early stage, it’s not rare that there will be multiple systems or “services” communicating to each other. The two most common ways are by using APIs or batch processing.

In this talk, I will show you another way, message streaming. This less known technique has great maintenance and decoupling properties given that you understand its ordering and idempotence requirements, which we will discuss. We will also see how partitioning allows us to scale the streams in separate segments, while maintaining the previous requirements. We will wrap up by a summary of things to watch out for if you take this route after discovering why it might be very beneficial to your project(s).