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# gRPC C# Server Reflection
This document shows how to use gRPC Server Reflection in gRPC C#.
Please see [C++ Server Reflection Tutorial](../server_reflection_tutorial.md)
for general information and more examples how to use server reflection.
## Enable server reflection in C# servers
C# Server Reflection is an add-on library.
To use it, first install the [Grpc.Reflection](https://www.nuget.org/packages/Grpc.Reflection/)
Nuget package into your project.
Note that with C# you need to manually register the service
descriptors with the reflection service implementation when creating a server
(this isn't necessary with e.g. C++ or Java)
```csharp
// the reflection service will be aware of "Greeter" and "ServerReflection" services.
var reflectionServiceImpl = new ReflectionServiceImpl(Greeter.Descriptor, ServerReflection.Descriptor);
server = new Server()
{
Services =
{
// the server will serve 2 services, the Greeter and the ServerReflection
ServerReflection.BindService(new GreeterImpl()),
ServerReflection.BindService(reflectionServiceImpl)
},
Ports = { { "localhost", 50051, ServerCredentials.Insecure } }
};
server.Start();
```
After starting the server, you can verify that the server reflection
is working properly by using the [`grpc_cli` command line
tool](https://github.com/grpc/grpc/blob/master/doc/command_line_tool.md):
```sh
$ grpc_cli ls localhost:50051
```
output:
```sh
helloworld.Greeter
grpc.reflection.v1alpha.ServerReflection
```
For more examples and instructions how to use the `grpc_cli` tool,
please refer to the [`grpc_cli` documentation](../command_line_tool.md)
and the [C++ Server Reflection Tutorial](../server_reflection_tutorial.md).
## Additional Resources
The [Server Reflection Protocol](../server-reflection.md) provides detailed
information about how the server reflection works and describes the server reflection
protocol in detail.
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