syntax = "proto3";

package graphsync.message.pb;

import "github.com/gogo/protobuf/gogoproto/gogo.proto";

message Message {

  message Request {
    int32 id = 1;       // unique id set on the requester side
    bytes root = 2;     // ipld root node for selector
    bytes selector = 3; // ipld selector to retrieve
    bytes extra = 4;    // aux information. useful for other protocols
    int32 priority = 5;	// the priority (normalized). default to 1
    bool  cancel = 7;   // whether this cancels a request
  }

  message Response {
    int32 id = 1;     // the request id
    int32 status = 2; // a status code.
    bytes data = 3; // core response data
    bytes extra = 4; // additional data
  }

  // the actual data included in this message
  repeated Request reqlist = 1 [(gogoproto.nullable) = false];
  repeated Response reslist = 2 [(gogoproto.nullable) = false];
}