Building Modern Services with .NET Core 3 and gRPC

Transcript

1. Building Modern Services with .NET Core 3 and gRPC Greg Shackles VP of Technology, Olo @gshackles greg@gregshackles.com
2. What Are Worker Services? ▪ Long-running background applications ▪ Some examples: – Queue processor – Event stream processor – Timer-based tasks
3. Creating A Worker Service > dotnet new worker
4. Hosted Services
5. Lifetime Management Microsoft.Extensions.Hosting.Internal.ConsoleLifetime Microsoft.Extensions.Hosting.WindowsServices.WindowsServiceLifetime Microsoft.Extensions.Hosting.Systemd.SystemdLifetime
6. Demo: Worker Services github.com/gshackles/aspnetcore-grpc-demo: samples/RangersPlayoffStatusChecker
7. Introduction to gRPC
8. What is gRPC? ▪ High performance, open source remote procedure call framework – Action-centric vs resource-centric ▪ Cross-platform, supported everywhere in many languages ▪ Automatically generate client SDKs from IDL
9. What is gRPC? ▪ Protocol buffers used for interface definitions and serialization – Compact, efficient binary format – Fast serialization and deserialization – Downside: less human-readable ▪ Built on HTTP/2 – Binary framing and compression: more efficient protocol than HTTP 1.x – Multiplexing: stream multiple calls over a single TCP connection – Flow control: prevent senders from overwhelming receivers
10. Protobuf Primer
11. Creating A gRPC Service > dotnet new grpc
12. Service Definition
13. Making Remote Procedure Calls From C#
14. Unary RPC
15. Server Streaming RPC
16. Client Streaming RPC
17. Bidirectional Streaming RPC
18. Authentication and Authorization
19. Deadlines and Cancellations
20. Interceptors and Middleware
21. Client Factory and Context Propagation
22. Health Checks
23. Health Checks
24. Error Handling
25. Server Reflection
26. Demo: gRPC Services github.com/gshackles/aspnetcore-grpc-demo: samples/HockeyStandings
27. Questions? github.com/gshackles/aspnetcore-grpc-demo