grpc Malmo

grpc Malmo presentation

Transcript

1. Embracing gRPC in .NET in .NET Irina Scurtu https://bit.ly/embracing-grpc https://irina.codes @irina_scurtu
2. @ i r i n a _ s c u r t u Irina Dominte(Scurtu) ▪ Romania Based ▪ Independent Consultant & Software Architect ( .NET at heart) ▪ Organizer of DotNetIasi user group & dotnetdays.ro conference ▪ I teach .NET ▪ Blog: https://Irina.codes @irina_scurtu
3. The Monolith Easy life
4. @ i r i n a _ s c u r t u Back-end Front-end Back-end Back-end
5. @ i r i n a _ s c u r t u 3rd party API 3rd party API
6. geee RPC
7. @ i r i n a _ s c u r t u gRPC client server .proto
8. @ i r i n a _ s c u r t u gRPC client server .proto
9. @ i r i n a _ s c u r t u gRPC ▪ No-code references ▪ Contract based ▪ Uses HTTP/2 => faster ▪ Efficient ProtoBuf serialization => smaller payload ▪ Available in many languages ▪ Code generation out-of-the box
10. *.PROTO
11. syntax = "proto3"; option csharp_namespace = "MyFirstGrpc"; package Fibonacci; // The service definition. service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (FibonacciResult){} } //the request message format message RequestedNumber { int32 number = 1; } //the response message format message FibonacciResult { int32 result = 1; }
12. syntax = "proto3"; option csharp_namespace = "MyFirstGrpc"; package Fibonacci; // The service definition. service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (FibonacciResult){} } //the request message format message RequestedNumber { int32 number = 1; } //the response message format message FibonacciResult { int32 result = 1; }
13. syntax = "proto3"; option csharp_namespace = "MyFirstGrpc"; package Fibonacci; // The service definition. service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (FibonacciResult){} } //the request message format message RequestedNumber { int32 number = 1; } //the response message format message FibonacciResult { int32 result = 1; }
14. syntax = "proto3"; option csharp_namespace = "MyFirstGrpc"; package Fibonacci; // The service definition. service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (FibonacciResult){} } //the request message format message RequestedNumber { int32 number = 1; } //the response message format message FibonacciResult { int32 result = 1; }
15. syntax = "proto3"; option csharp_namespace = "MyFirstGrpc"; package Fibonacci; // The service definition. service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (FibonacciResult){} } //the request message format message RequestedNumber { int32 number = 1; } //the response message format message FibonacciResult { int32 result = 1; }
16. syntax = "proto3"; option csharp_namespace = "MyFirstGrpc"; package Fibonacci; // The service definition. service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (FibonacciResult){} } //the request message format message RequestedNumber { int32 number = 1; } //the response message format message FibonacciResult { int32 result = 1; }
17. gRPC types or modes gRPC
18. @ i r i n a _ s c u r t u Modes/Method types ❑ Unary ❑ Server Streaming ❑ Client Streaming ❑ Bi-directional streaming
19. Unary gRPC
20. Unary service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (FibonacciResult){} }
21. Server streaming gRPC
22. @ i r i n a _ s c u r t u Server Streaming service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (stream FibonacciResult){} }
23. @ i r i n a _ s c u r t u Server Streaming service Fibo { rpc ComputeFibonacci(RequestedNumber) returns (stream FibonacciResult){} }
24. Client streaming gRPC
25. Client Streaming service Fibo { rpc ComputeFibonacci(stream RequestedNumber) returns (FibonacciResult){} }
26. Client Streaming service Fibo { rpc ComputeFibonacci(stream RequestedNumber) returns (FibonacciResult){} }
27. Bi-directional streaming gRPC
28. @ i r i n a _ s c u r t u Bi-directional Streaming service Fibo { rpc ComputeFibonacci(stream RequestedNumber) returns (stream FibonacciResult){} }
29. @ i r i n a _ s c u r t u Bi-directional Streaming service Fibo { rpc ComputeFibonacci(stream RequestedNumber) returns (stream FibonacciResult){} }
30. Some gRPC internals
31. gRPC ‘internals’ ▪ Status Codes != HTTP Status Codes ▪ RpcException ▪ Interceptors ▪ Request headers ▪ Response headers ▪ Response trailers
32. @ i r i n a _ s c u r t u Tweak some things builder.Services.AddGrpc(options => { options.EnableDetailedErrors = true; // options.MaxReceiveMessageSize = 2 * 1024 * 1024; // 2 MB // options.MaxSendMessageSize = 5 * 1024 * 1024; // 5 MB options.ResponseCompressionLevel = CompressionLevel.Optimal; options.ResponseCompressionAlgorithm = "gzip"; options.CompressionProviders = new List<ICompressionProvider>() { //brotli or your own }; // options.Interceptors.Add<Type>() });
33. What gRPC should do awesome since .NET 6
34. @ i r i n a _ s c u r t u Client side load balancing
35. @ i r i n a _ s c u r t u Client side load balancing • DnsResolverFactory • StaticResolverFactory • Pick first or Round robin • You can implement your own resolvers
36. @ i r i n a _ s c u r t u gRPC transcoding
37. Benefits
38. @ i r i n a _ s c u r t u Performance/ Size REST/ HTTP Api vs gRPC ~ 80% SMALLER payload
39. @ i r i n a _ s c u r t u Polyglot environments
40. @ i r i n a _ s c u r t u Low network usage
41. @ i r i n a _ s c u r t u Point-to-point communication
42. @ i r i n a _ s c u r t u ▪ Contract-based ▪ Smaller payloads ▪ HTTP/2 is faaaaaaaster ▪ Supports different streaming types over a single connection ▪ .NET 6 > can be configured to run with HTTP/3
43. Downsides
44. @ i r i n a _ s c u r t u Downsides ▪ Temporal coupling ▪ You might forget that there is a network involved ▪ Not human readable (until now) ▪ You’ll need better testing ▪ Focus on CI/CD ▪ Only HTTP POST -> no caching ▪ Single point of truth (.proto file) ▪ Not supported in Azure!(yet)
45. @ i r i n a _ s c u r t u Downsides ▪ Temporal coupling ▪ You might forget that there is a network involved ▪ Not human readable (until now) ▪ You’ll need better testing ▪ Focus on CI/CD ▪ Only HTTP POST -> no caching ▪ Single point of truth (.proto file) ▪ Not supported in Azure!(yet)
46. @ i r i n a _ s c u r t u Summary ▪ Great choice for microservice communication, point to point ▪ Replaces gracefuly HTTPClients ▪ Polyglot environments ▪ 4 modes/methods ▪ Decouples code
47. But we should know the tools
48. Distributed systems are all about tradeoffs
49. @ i r i n a _ s c u r t u Thanks for listening! https://Irina.codes https://bit.ly/embracing-grpc
50. @ i r i n a _ s c u r t u @irina_scurtu https://Irina.codes bit.ly/grpc-oredev