Further reading
This chapter mainly focused on the more commonly used REST service. If you are interested in SOAP services, a good place to start is the Wikipedia page regarding SOAP specifications: https://en.wikipedia.org/wiki/List_of_web_service_specifications. On the other hand, if you are interested in the Microsoft .NET WCF technology for implementing SOAP services, you can refer to WCF's official documentation here: https://docs.microsoft.com/en-us/dotnet/framework/wcf/.
This chapter mentioned the AMQP protocol as an option for intra-cluster communication without describing it. Detailed information on this protocol is available on AMQP's official site: https://www.amqp.org/.
More information on gRPC is available on Google gRPC's official site: https://grpc.io/. More information on the Visual Studio gRPC project template can be found here: https://docs.microsoft.com/en-US/aspnet/core/grpc/. You may also want to check out gRPC-Web at https://devblogs.microsoft...