Summary
In this chapter, we analyzed various options for efficient internal microservices communication. We explained the importance of a binary serialization that is interoperable and that ensures compatibility with previous message versions, and we described in detail ProtoBuf.
We analyzed the limits of RPC communication and why data-driven communication must be preferred. Then, we focused on how to achieve reliable asynchronous communication and efficient distributed transactions.
After having described the conceptual problems and techniques of reliable asynchronous communication, we looked at two architectures. The first one was based on gRPC, ASP.NET Core, and internal queues, and the second one was based on message brokers like RabbitMQ and .NET worker services.
The chapter explained, using practical examples, how to implement all the communication protocols that have been discussed and the architectural options for implementing worker microservices that are available...