DynamicGrpc 1.1.0

grpc-curl

<img align="right" width="160px" height="160px" src="https://raw.githubusercontent.com/xoofx/grpc-curl/main/img/grpc-curl.png">

grpc-curl is a command line tool for interacting with gRPC servers.

This tool is the .NET equivalent of the popular gRPCurl written in Golang.

NOTE: grpc-curl doesn't not support yet all the features that gRPCurl is providing.

Usage

grpc-curl currently requires that the gRPC server has activated gRPC reflection.

./grpc-curl --json -d "{""getStatus"":{}}" 192.168.100.1:9200 SpaceX.API.Device.Device/Handle

Will print the following result:

{
  "apiVersion": 4,
  "dishGetStatus": {
    "deviceInfo": {
      "id": "0000000000-00000000-00000000",
      "hardwareVersion": "rev2_proto3",
      "softwareVersion": "992cafb5-61c7-46a3-9ef7-5907c8cf90fd.uterm.release",
      "countryCode": "FR",
      "utcOffsetS": 1
    },
    "deviceState": {
      "uptimeS": 667397
    },
    "obstructionStats": {
      "fractionObstructed": 2.2786187E-06,
      "wedgeFractionObstructed": [
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0
      ],
      "wedgeAbsFractionObstructed": [
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0,
        0.0
      ],
      "validS": 667070.0,
      "avgProlongedObstructionIntervalS": "NaN"
    },
    "alerts": {
      "roaming": true
    },
    "downlinkThroughputBps": 461012.72,
    "uplinkThroughputBps": 294406.6,
    "popPingLatencyMs": 30.35,
    "boresightAzimuthDeg": 0.7464048,
    "boresightElevationDeg": 65.841354,
    "gpsStats": {
      "gpsValid": true,
      "gpsSats": 12
    }
  }
}

Usage API

The functionality of grpc-curl is also accessible through the NuGet package DynamicGrpc.

var channel = GrpcChannel.ForAddress("http://192.168.100.1:9200");
// Fetch reflection data from server
var client = await DynamicGrpcClient.FromServerReflection(channel);

// Call the method `Handle` on the service `SpaceX.API.Device.Device`
var result = await client.AsyncUnaryCall("SpaceX.API.Device.Device", "Handle", new Dictionary<string, object>()
{
    { "get_status", new Dictionary<string, object>() }
});

Features

• Build on top of the DynamicGrpc library available as a separate NuGet package.
• DynamicGrpc supports all the kind of gRPC calls (unary blocking, unary async, streaming, full-duplex...).
• grpc-curl supports only blocking/async method for now (streaming should follow).
• Support for plain Protocol Buffers naming conventions or JSON.
• Support for google.protobuf.Any: The type has to be encoded - and is decoded with the shadow property @type on a dictionary (e.g @type = "type.googleapis.com/YourTypeName").

Binaries

If you have dotnet 6.0 installed, you can install this tool via NuGet:

dotnet tool install --global grpc-curl --version 1.1.0

Debian and macOS packages for x64/am64 will be released later.

License

This software is released under the BSD-Clause 2 license.

Author

Alexandre Mutel aka xoofx.