/**
* Get a list of the topics registered to your project.
*
* Example:
* ```
* $topics = $pubsub->topics();
* foreach ($topics as $topic) {
* $info = $topic->info();
* echo $info['name']; // `projects/my-awesome-project/topics/<topic-name>`
* }
* ```
*
* @see https://cloud.google.com/pubsub/docs/reference/rest/v1/projects.topics/list List Topics
*
* @param array $options [optional] {
* Configuration Options
*
* @type int $pageSize Maximum number of results to return per
* request.
* }
* @return Generator<Google\Cloud\PubSub\Topic>
*/
public function topics(array $options = [])
{
$options['pageToken'] = null;
do {
$response = $this->connection->listTopics($options + ['project' => $this->formatName('project', $this->projectId)]);
foreach ($response['topics'] as $topic) {
(yield $this->topicFactory($topic['name'], $topic));
}
// If there's a page token, we'll request the next page.
$options['pageToken'] = isset($response['nextPageToken']) ? $response['nextPageToken'] : null;
} while ($options['pageToken']);
}
