syntax = "proto3";

option go_package = "./pb";


// 通过网关向客户端投递消息
service GatewayPostal {
  // 使用流连续发送数据
  rpc DeliverStream(stream ReqDeliver) returns (ResDeliver);

  // 发送一次数据
  rpc Deliver(ReqDeliver) returns (ResDeliver);

  // 批量发送数据
  rpc DeliverBatch(ReqDeliverBatch) returns (ResDeliver);
}

message Message {
  int64 time = 3;
  string target = 4; // 消息处理 handler
  bytes body = 15; // protobuf bytes
}

message ReqDeliver {
  string receiver = 1;
  Message msg = 2;

  bool sync = 7; // 是否同步阻塞等待投递结果, 默认false立即返回放到队列消费投递
}
message ResDeliver {
  bool ok = 1;
  int32 code = 2;
  string msg = 3;
}

message ReqDeliverBatch {
  repeated string receivers = 1;
  Message msg = 2;
  bool sync = 7;
}