src/trellis/proto/expiration_info.proto

// Copyright 2020 The Feed Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto2";

package feedwire;

option optimize_for=LITE_RUNTIME;

import "google/protobuf/duration.proto";


/* Information about whether and when a feature should expire and be removed
 * from Discover. */
message ExpirationInfo {
  // Whether the feature can expire.
  optional bool should_expire = 1;

  // Indicates how long after this response was received the client should wait
  // before expiring (and hiding) this content. This expiration time is a best
  // effort, and should not be done while the content is visible on screen.
  // There are no penalties with showing the content after the expiry, though
  // some uses of this API (ads in particular) do have SLA's about how often
  // items can be shown after expiration.
  optional google.protobuf.Duration expiration_duration = 2;
}