syntax = "proto3";

package service;

option go_package = "github.com/nspcc-dev/neofs-api-go/service";
option csharp_namespace = "NeoFS.API.Service";

// Represents API version used by node.
message Version {
  // Major API version.
  uint32 major = 1;
  // Minor API version.
  uint32 minor = 2;
}

// RequestMetaHeader contains information about request meta headers.
message RequestMetaHeader {
  // Carries maximum number of nodes in the request route.
  uint32 ttl = 1;

  message XHeader {
    // Carries key to the X-Header.
    string key = 1;

    // Carries value of the X-Header.
    string value = 2;
  }

  // Carries request X-Headers.
  repeated XHeader x_headers = 2;
}