components/sync/protocol/collaboration_group_specifics.proto

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// If you change or add any fields in this file, update proto_visitors.h and
// potentially proto_enum_conversions.{h, cc}.

syntax = "proto2";

option java_multiple_files = true;
option java_package = "org.chromium.components.sync.protocol";

option optimize_for = LITE_RUNTIME;

package sync_pb;

// Special sync datatype to notify client about People Group changes.
message CollaborationGroupSpecifics {
  // Unique identifier for a collaboration group, also known as `group_id` or
  // `group_name`.
  optional string collaboration_id = 1;

  // Indicates staleness of the collaboration group, used to determine whether
  // client should refresh cached group. Server-side derived from group event
  // `changed_at`.
  optional int64 changed_at_timestamp_millis_since_unix_epoch = 2;

  // An opaque token, that is used to optimize ReadGroup(s) RPCs.
  optional string consistency_token = 3;

  // A stable identifier that remains constant across sharing and unsharing
  // events.
  // Note: Older group will not have this field filled and should use
  // `collaboration_id` instead while newer groups created with context id will
  // use this as the `collaboration_id`.
  optional string context_id = 4;
}