PoC gRPC using .NET

This repository demonstrates a Proof of Concept (PoC) implementation of gRPC using .NET, focusing on server-sent events. It includes both the server and client implementations, illustrating how to build and consume gRPC services for real-time event streaming.

Features

gRPC Server: Handles client subscriptions and streams real-time events.
gRPC Client: Connects to the server and processes received events.
Server-Sent Events: Implements a streaming mechanism using gRPC for efficient real-time data delivery.

Project Structure

GrpcSSE: Contains the server-side implementation.
GrpcSSEClient: Contains the client-side implementation.
proto: Contains the messages.proto file defining the gRPC service contracts.

Architecture

Sequence Diagram: gRPC Server-Sent Events

sequenceDiagram
    actor Client
    participant GrpcSSEClient as gRPC Client
    participant GrpcSSE as gRPC Server
    participant EventService

    Client->>GrpcSSEClient: Start Client
    GrpcSSEClient->>GrpcSSE: Connect to Server
    GrpcSSE->>EventService: Handle Subscription
    loop Stream Events
        EventService->>GrpcSSEClient: Send Event Data
    end
    GrpcSSEClient->>Client: Display Event Data

Class Diagram: gRPC Server and Client

classDiagram
    class GrpcSSE {
        +ConfigureServices(IServiceCollection services)
        +Configure(IApplicationBuilder app, IWebHostEnvironment env)
    }
    class EventService {
        +Subscribe(SubscribeRequest request, IServerStreamWriter<EventResponse> responseStream, ServerCallContext context)
    }
    class GrpcSSEClient {
        +Main(string[] args)
    }
    GrpcSSE o-- EventService
    GrpcSSEClient <|-- GrpcSSE

Prerequisites

.NET SDK
gRPC tools
gRPC NuGet packages:
- Grpc.AspNetCore
- Grpc.Tools

Setup and Run

Clone the repository:

git clone https://github.com/your-username/grpc-poc-dotnet.git
cd grpc-poc-dotnet

Restore dependencies:
```
dotnet restore
```
Run the server:
```
cd GrpcSSEServer
dotnet run
```
Run the client:
```
cd GrpcSSEClient
dotnet run
```

Useful Links

Server-Sent Events with gRPC in .NET by Gabriele Tronchin

License

This project is licensed under the MIT License. See the LICENSE file for details.