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

Making unary calls on gRPC

In this section, we will learn how to make the most basic gRPC call—a unary call. Even though we have used this call type in previous chapters, we will look into it in more detail here. You will learn the difference between blocking and non-blocking unary call implementations on .NET, as well as how to work with its metadata.

We will also provide examples of unary calls that cover other fundamental aspects of gRPC and its .NET implementation. For example, you will learn how the URI path to RPCs gets constructed based on whether or not you use the package keyword inside a Protobuf definition. You will also learn how to extract metadata from the requests and responses, both on the client and the server.

But first, we will set up our solution.

Setting up shared gRPC dependencies

We will place all of our projects into the same solution with shared dependencies. Let's get started:

  1. To create the solution, create the GrpcCallTypes...