// Copyright 2016 The LUCI Authors. All rights reserved.
// Use of this source code is governed under the Apache License, Version 2.0
// that can be found in the LICENSE file.

syntax = "proto3";

package discovery;

option go_package = "go.chromium.org/luci/grpc/discovery";

import "google/protobuf/descriptor.proto";

// Discovery describes services.
service Discovery {
  // Describe returns a list of services and a descriptor.FileDescriptorSet
  // that covers them all.
  rpc Describe (Void) returns (DescribeResponse) {}
}

// Void is an empty message.
message Void {}

// DescribeResponse describes services.
message DescribeResponse {
  // Description contains descriptions of all services, their types and all
  // transitive dependencies.
  google.protobuf.FileDescriptorSet description = 1;
  // Services are service names provided by a server.
  repeated string services = 2;
}