https://github.com/hona/grpc.featureflags

Support for Microsoft.FeatureManagement within ASP.NET Core gRPC applications. Example being, feature flags in Azure App Config, with the same attribute syntax [FeatureGate] used on controllers, but working for gRPC.
https://github.com/hona/grpc.featureflags

aspnetcore feature-flags grpc grpc-csharp

Last synced: 3 months ago
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Support for Microsoft.FeatureManagement within ASP.NET Core gRPC applications. Example being, feature flags in Azure App Config, with the same attribute syntax [FeatureGate] used on controllers, but working for gRPC.

• Host: GitHub
• URL: https://github.com/hona/grpc.featureflags
• Owner: Hona
• License: mit
• Created: 2024-08-26T01:07:23.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-08-26T01:42:50.000Z (over 1 year ago)
• Last Synced: 2025-03-15T21:48:05.207Z (about 1 year ago)
• Topics: aspnetcore, feature-flags, grpc, grpc-csharp
• Language: C#
• Homepage:
• Size: 7.81 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# gRPC.FeatureFlags

Support for Microsoft.FeatureManagement within ASP.NET Core gRPC applications. Example being, feature flags in Azure App Config, with the same attribute syntax [FeatureGate] used on controllers, but working for gRPC.

[![NuGet Version](https://img.shields.io/nuget/v/Hona.gRPC.FeatureFlags)](https://www.nuget.org/packages/Hona.gRPC.FeatureFlags)

## Pre-requisites

Assuming you are using code first gRPC services for ASP.NET Core

e.g. packages:

- `protobuf-net.Grpc.AspNetCore`

- `Grpc.AspNetCore.Web`

## Usage

Add the package to your project:

```bash

dotnet add package Hona.gRPC.FeatureFlags

```

Modify your dependency injection to include:

```csharp

using Hona.gRPC.FeatureFlags; // 👈 New code

...

services.AddCodeFirstGrpc(config =>

{

    ...

    config.UseFeatureFlags(); // 👈 New code

});

```

Now you can add the attribute in one of 3 places

- On the Request model

- On the Service

- On the method

```csharp

[FeatureGate("Ping")] // 👈 This works

public class PingRequest { }

public class PingResponse { }

[FeatureGate("Ping")] // 👈 This works

public class MyService : IMyService

{

    // 👇 My preferred location, or on the service

    [FeatureGate("Ping")] // 👈 This works

    [Authorize] // This already works, its nice to have both side by side

    public async Task PingAsync(PingRequest request, CallContext context = default)

    {

        return new PingResponse();

    }

}

```