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Microservices Communication in .NET Using gRPC

Microservices Communication in .NET Using gRPC

By : Fiodar Sazanavets, Sazanavets
4.7 (7)
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Microservices Communication in .NET Using gRPC

Microservices Communication in .NET Using gRPC

4.7 (7)
By: Fiodar Sazanavets, 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)
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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

Restricting gRPC endpoints to authenticated users

gRPC is primarily designed for the backend; therefore, in most cases, it won't be possible to redirect to an SSO login. There simply won't be a UI that we will be able to do it from.

But because the OpenID Connect workflow obtains a token that is then stored in the application, we can simply reuse this token to get the user-facing application to authenticate into the gRPC application that it needs to communicate with. We will now demonstrate how to do this.

Setting up shared gRPC dependencies

We will start by creating a library that both the client and the server will share. As we did in the previous chapters, we will do so to ensure that both the client and the server use identical Protocol Buffers (Protobuf) definitions. Follow these next steps:

  1. Navigate to the GrpcAuthentication solution folder and execute the following command to create a class library project:
    dotnet new classlib -o GrpcDependencies
  2. ...

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