public async Task <int> PublishBatchMessagesAsync(string projectId, string topicId, IEnumerable <string> messageTexts)
{
TopicName topicName = TopicName.FromProjectTopic(projectId, topicId);
// Default Settings:
// byteCountThreshold: 1000000
// elementCountThreshold: 100
// delayThreshold: 10 milliseconds
var customSettings = new PublisherClient.Settings
{
BatchingSettings = new BatchingSettings(
elementCountThreshold: 50,
byteCountThreshold: 10240,
delayThreshold: TimeSpan.FromMilliseconds(500))
};
PublisherClient publisher = await PublisherClient.CreateAsync(topicName, settings : customSettings);
int publishedMessageCount = 0;
var publishTasks = messageTexts.Select(async text =>
{
try
{
string message = await publisher.PublishAsync(text);
Console.WriteLine($"Published message {message}");
Interlocked.Increment(ref publishedMessageCount);
}
catch (Exception exception)
{
Console.WriteLine($"An error occurred when publishing message {text}: {exception.Message}");
}
});
await Task.WhenAll(publishTasks);
return(publishedMessageCount);
}
private static Task <PublisherClient> CreatePublisherClientAsync(TopicName topicName, PublisherClient.ClientCreationSettings clientCreationSettings = null, PublisherClient.Settings settings = null)
{
clientCreationSettings ??= new PublisherClient.ClientCreationSettings();
clientCreationSettings = clientCreationSettings.WithEmulatorDetection(EmulatorDetection.EmulatorOrProduction);
return(PublisherClient.CreateAsync(topicName, clientCreationSettings, settings));
}