// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
syntax = "proto3";

package cobalt;

option go_package = "cobalt";

import "src/pb/observation_batch.proto";

// An envelope contains multiple ObservationBatches. An encrypted Envelope
// is the unit sent from an Encoder client to a Shuffler.
message Envelope {
  // We used to put a SystemProfile into an Envelope but we no longer do.
  // Now we only put SystemProfiles into ObservationBatches.
  reserved 3;
  reserved "system_profile";

  repeated ObservationBatch batch = 1;

  // If api_key contains the right secret string, this allows Cobalt to identify
  // that this envelope comes from a valid Cobalt client.
  bytes api_key = 4;
}