How are your microservices talking?

Microservices are a software development method where applications are structured as small, loosely coupled services. They can be thought of as minimal units of functionality, can be deployed independently, are reusable, and communicate with each other via various network protocols like HTTP. Today, most cloud-based applications that expose a REST API are built on microservices, or may actually be one themselves. These architectures are called microservice architectures. The benefits of microservices include increased flexibility, resistance to failure, unparalleled flexibility for scaling and updating, and the ability to experiment with new technologies. However, challenges include dealing with large amounts of logs when something breaks, testing and deployment becoming more complicated, and the need for microservices to communicate effectively. One solution to these challenges is the use of asynchronous communication via multiple receivers, such as Apache Kafka's pub-sub model. This method allows software components called producers to publish events in time-ordered logs called topics, while consumers can subscribe from these topics by offset. This decouples components from the message bus and each other, allowing for independent development and testing without worrying about dependencies. Apache Kafka is a good communication solution because it solves the problem of tight-coupling between components and communication, supports routing rules configured by consumer, facilitates breaking up larger components into atomic, granular, independent, reusable services, and offers high throughput/low latency. However, setting up and maintaining Apache Kafka can be challenging, which is why managed solutions like Aiven for Apache Kafka® are recommended.