public async Task Initialize()
{
try
{
_publisher = await PublisherClient.CreateAsync(_customEndpoint);
}
catch (Exception e)
{
ReportErrorAndRethrow(e, "CreateAsync", GoogleErrorCode.Initializing);
}
bool didCreate = false;
try
{
_topic = await _publisher.CreateTopicAsync(TopicName);
didCreate = true;
}
catch (RpcException e)
{
if (e.Status.StatusCode != StatusCode.AlreadyExists)
{
ReportErrorAndRethrow(e, "CreateTopicAsync", GoogleErrorCode.Initializing);
}
_topic = await _publisher.GetTopicAsync(TopicName);
}
_logger.LogInformation((int)GoogleErrorCode.Initializing, "{Verb} Google PubSub Topic {TopicId}", (didCreate ? "Created" : "Attached to"), TopicName.TopicId);
didCreate = false;
try
{
_subscriber = await SubscriberClient.CreateAsync(_customEndpoint);
_subscription = await _subscriber.CreateSubscriptionAsync(SubscriptionName, TopicName, pushConfig : null,
ackDeadlineSeconds : _deadline.HasValue?(int)_deadline.Value.TotalSeconds : 60);
didCreate = true;
}
catch (RpcException e)
{
if (e.Status.StatusCode != StatusCode.AlreadyExists)
{
ReportErrorAndRethrow(e, "CreateSubscriptionAsync", GoogleErrorCode.Initializing);
}
_subscription = await _subscriber.GetSubscriptionAsync(SubscriptionName);
}
_logger.LogInformation(
(int)GoogleErrorCode.Initializing,
"{Verb} Google PubSub Subscription {SubscriptionId} to Topic {TopicId}",
(didCreate ? "Created" : "Attached to"),
SubscriptionName.SubscriptionId,
TopicName.TopicId);
}
public async Task GetTopicAsync()
{
// Snippet: GetTopicAsync(string,CallSettings)
// Additional: GetTopicAsync(string,CancellationToken)
// Create client
PublisherClient publisherClient = PublisherClient.Create();
// Initialize request argument(s)
string formattedTopic = PublisherClient.FormatTopicName("[PROJECT]", "[TOPIC]");
// Make the request
Topic response = await publisherClient.GetTopicAsync(formattedTopic);
// End snippet
}
public async Task GetTopicAsync()
{
// Snippet: GetTopicAsync(TopicName,CallSettings)
// Additional: GetTopicAsync(TopicName,CancellationToken)
// Create client
PublisherClient publisherClient = await PublisherClient.CreateAsync();
// Initialize request argument(s)
TopicName topic = new TopicName("[PROJECT]", "[TOPIC]");
// Make the request
Topic response = await publisherClient.GetTopicAsync(topic);
// End snippet
}
public async Task GetTopicAsync_RequestObject()
{
// Snippet: GetTopicAsync(GetTopicRequest,CallSettings)
// Create client
PublisherClient publisherClient = await PublisherClient.CreateAsync();
// Initialize request argument(s)
GetTopicRequest request = new GetTopicRequest
{
TopicAsTopicName = new TopicName("[PROJECT]", "[TOPIC]"),
};
// Make the request
Topic response = await publisherClient.GetTopicAsync(request);
// End snippet
}
