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Microservices Communication in .NET Using gRPC

You're reading from   Microservices Communication in .NET Using gRPC A practical guide for .NET developers to build efficient communication mechanism for distributed apps

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Product type Paperback
Published in Feb 2022
Publisher Packt
ISBN-13 9781803236438
Length 486 pages
Edition 1st Edition
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Author (1):
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Fiodar Sazanavets Fiodar Sazanavets
Author Profile Icon Fiodar Sazanavets
Fiodar Sazanavets
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Toc

Table of Contents (17) Chapters Close

Preface 1. Section 1: Basics of gRPC on .NET
2. Chapter 1: Creating a Basic gRPC Application on ASP.NET Core FREE CHAPTER 3. Chapter 2: When gRPC Is the Best Tool and When It Isn't 4. Chapter 3: Protobuf – the Communication Protocol of gRPC 5. Section 2: Best Practices of Using gRPC
6. Chapter 4: Performance Best Practices for Using gRPC on .NET 7. Chapter 5: Applying Versioning to the gRPC API 8. Chapter 6: Scaling a gRPC Application 9. Section 3: In-Depth Look at gRPC on .NET
10. Chapter 7: Using Different Call Types Supported by gRPC 11. Chapter 8: Using Well-Known Types to Make Protobuf More Handy 12. Chapter 9: Securing gRPC Endpoints in Your ASP.NET Core Application with SSL/TLS 13. Chapter 10: Applying Authentication and Authorization to gRPC Endpoints 14. Chapter 11: Using Logging, Metrics, and Debugging in gRPC on .NET 15. Assessments 16. Other Books You May Enjoy

Why you need to reuse a gRPC channel

When you connect the gRPC client to the server, you do so via a configurable channel. When the channel is opened, the following things happen:

  1. A socket is opened
  2. The TCP connection is established
  3. Transport Layer Security (TLS) is negotiated and applied
  4. An HTTP/2 connection is started

Once these steps have been completed, gRPC calls can be made to the server.

Because opening a channel requires all these steps to take place, which represent multiple roundtrips to the server, it's better to reuse the channel while you can. If you already have an existing channel open, you can start making gRPC calls on it right away. However, if you recreate the channel every time you make a call, you will need to perform all these steps every single time. If you need to make many calls, this may slow down your system substantially.

In C#, the gRPC channel is represented by the GrpcChannel class from the Grpc.Net.Client namespace...

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