gRPC
- 1. gRPC says Hi to .NET Yu-Lang Chu
- 2. .NET Developer from APIs to APIs WCFRest OData gRPCRest GraphQL .NET 4.X .NET 5
- 3. gRPC in .NET ● Developed at Google in 2015 ● CNCF project ● Official support .NET core 3.0 ● Replace WCF in .NET ecosystem
- 4. What is gRPC: General-purpose Remote Procedure Calls
- 5. Latest new technologies C# Service gRPC Server JS Client gRPC Client stub Python Client gRPC Client stub HTTP/2 Protobuf
- 7. Rest API vs gRPC ● Resource/Content first - JSON ● Human Readable content - JSON ● Text serialization - JSON ● HTTP verbs ● Contract first - protobuf ● Human Readable contract - protobuf ● Binary serialization - protobuf ● No limitation to verbs https://martin.kleppmann.com/2012/12/05/schema-evolution-in-avro-protocol-buffers-thrift.html
- 8. Performance: Protobuf vs XML vs JSON https://digitallife.rocks/2019/05/30/how-to-save-money-with-technology-protobuf/
- 9. Protobuf : core of gRPC GeneratorProtobuf C# class Python class Golang struct Message
- 11. Definition of Protobuf Syntax version options package(protobuf) Service definition Message
- 12. Types of method: WCF vs gRPC https://docs.microsoft.com/en-us/dotnet/architecture/grpc-for-wcf-developers/rpc-types
- 13. 4 type of service method client server client server client server client server Unary Client Streaming Server Streaming Bidirectional Streaming
- 14. Scenarios Feature: low latency, high throughput, stream, cross-platform 4 recommended scenarios: ● Microservice ● Point-to-point real time communication ● Multi-language environments ● Network constrained environments
- 15. Demo: how to start GRPC project
- 16. How to create gRPC server project ● VS2019: ● Command line : dotnet new grpc ● Existing project: ○ add package Grpc.AspNetCore ○ Startup.cs: Add gRPC services and endpoint
- 17. How to create gRPC Client project Project setup: 1. Install Packages: ● Google.Protobuf ● Grpc.Net.Client ● Grpc.Tools 2. Add Protobuf files reference into .csproj, then build project Code: 3. Setup channel: var channel = Grpc.channel.ForAddress(...); 4. Call defined API
- 18. More Topics ● Protobuf definition ● Authentication/Authorization ● Cache ● Rate limiting ● GRPC web ● ….. etc
- 19. Reference ● https://developers.google.com/protocol-buffers ● https://docs.microsoft.com/en-us/dotnet/architecture/grpc-for-wcf-developers/ ● https://grpc.io/ ● https://github.com/grpc/grpc-dotnet