Book Image

Microservices Communication in .NET Using gRPC

By : Fiodar Sazanavets
Book Image

Microservices Communication in .NET Using gRPC

By: Fiodar Sazanavets

Overview of this book

Explore gRPC's capabilities for faster communication between your microservices using the HTTP/2 protocol in this practical guide that shows you how to implement gRPC on the .NET platform. gRPC is one of the most efficient protocols for communication between microservices that is also relatively easy to implement. However, its official documentation is often fragmented and.NET developers might find it difficult to recognize the best way to map between C# data types and fields in gRPC messages. This book will address these concerns and much more. Starting with the fundamentals of gRPC, you'll discover how to use it inside .NET apps. You’ll explore best practices for performance and focus on scaling a gRPC app. Once you're familiar with the inner workings of the different call types that gRPC supports, you'll advance to learning how to secure your gRPC endpoints by applying authentication and authorization. With detailed explanations, this gRPC .NET book will show you how the Protobuf protocol allows you to send messages efficiently by including only the necessary data. You'll never get confused again while translating between C# data types and the ones available in Protobuf. By the end of the book, you’ll have gained practical gRPC knowledge and be able to use it in .NET apps to enable direct communication between microservices.
Table of Contents (17 chapters)
1
Section 1: Basics of gRPC on .NET
5
Section 2: Best Practices of Using gRPC
9
Section 3: In-Depth Look at gRPC on .NET

Chapter 7: Using Different Call Types Supported by gRPC

In the previous chapters, we covered several ways you can make a gRPC call to and from a .NET application. In this chapter, we will have an in-depth look at how to make these calls and what happens in the background when these calls are made.

In this chapter, you will not only learn how to make the different types of calls that are available with gRPC, but you will also learn what happens in the background while these calls are being made. We will cover how Protobuf RPC definitions are resolved by gRPC middleware into paths that are understood by the HTTP protocol, as well as how gRPC middleware deals with errors.

You will also learn how to apply various configuration options, both to the gRPC channel and to individual calls. Finally, you will learn how to extract metadata from gRPC calls, both on the client and the server.

In this chapter, we will cover the following topics:

  • Making unary calls on gRPC
  • Streaming...