public async Task <string> PublishOneAsync <T>(T message, string withSubscriptionId = null, CancellationToken cancellationToken = default)
{
//PublisherServiceApiClient publisherService = await PublisherServiceApiClient.CreateAsync
PublisherServiceApiClient publisherService = new PublisherServiceApiClientBuilder
{
Endpoint = endpoint,
ChannelCredentials = ChannelCredentials.Insecure
}.Build();
TopicName topicName = new TopicName(projectId, topicId);
try
{
publisherService.CreateTopic(topicName, CallSettings.FromCancellationToken(cancellationToken));
}
catch
{
//already exists
}
if (!string.IsNullOrWhiteSpace(withSubscriptionId))
{
//SubscriberServiceApiClient subscriberService = await SubscriberServiceApiClient.CreateAsync();
SubscriberServiceApiClient subscriberService = new SubscriberServiceApiClientBuilder
{
Endpoint = endpoint,
ChannelCredentials = ChannelCredentials.Insecure
}.Build();
SubscriptionName subscriptionName = new SubscriptionName(projectId, withSubscriptionId);
try
{
subscriberService.CreateSubscription(subscriptionName, topicName, pushConfig: null, ackDeadlineSeconds: 60);
}
catch
{
//already exists
}
}
return(await PublishAsync(topicName, endpoint, message));
}
static async Task Main(string[] args)
{
Environment.SetEnvironmentVariable("PUBSUB_EMULATOR_HOST", "localhost:8681");
var emulatorHostAndPort = Environment.GetEnvironmentVariable("PUBSUB_EMULATOR_HOST");
var pubsubProjectId = Environment.GetEnvironmentVariable("PUBSUB_PROJECT_ID");
//Environment.SetEnvironmentVariable("GCP_SERVICE_ACCOUNT_JSON", "");
//Environment.SetEnvironmentVariable("GOOGLE_APPLICATION_CREDENTIALS", "");
//PublisherServiceApiClient publisherService = await PublisherServiceApiClient.CreateAsync
PublisherServiceApiClient publisherService = new PublisherServiceApiClientBuilder
{
Endpoint = emulatorHostAndPort,
ChannelCredentials = ChannelCredentials.Insecure
}.Build();
TopicName topicName = new TopicName(projectId, topicId);
try
{
publisherService.CreateTopic(topicName, CallSettings.FromCancellationToken(default));
public void Overrides()
{
string projectId = _fixture.ProjectId;
string topicId = _fixture.CreateTopicId();
DateTime deadline = DateTime.MaxValue;
CancellationToken cancellationToken = new CancellationTokenSource().Token;
// Sample: Overrides
// Create a default PublisherServiceApiSettings, with customizations for CreateTopic RPCs:
// * A custom "ClientVersion" header.
// * A custom 5-second timeout Timing.
// * No cancellation token.
PublisherServiceApiSettings publisherSettings = new PublisherServiceApiSettings();
publisherSettings.CreateTopicSettings = publisherSettings.CreateTopicSettings
.WithCancellationToken(CancellationToken.None)
.WithTimeout(TimeSpan.FromSeconds(5))
.WithHeader("ClientVersion", "1.0.0");
// Override the above Timing and CancellationToken in the client-wide CallSettings;
// the Headers are not overridden.
publisherSettings.CallSettings = CallSettings
.FromExpiration(Expiration.FromDeadline(deadline))
.WithCancellationToken(CancellationToken.None);
// Create the client with the configured publisherSettings
PublisherServiceApiClient client = new PublisherServiceApiClientBuilder {
Settings = publisherSettings
}.Build();
// Create a topic name from the projectId and topicId.
TopicName topicName = new TopicName(projectId, topicId);
// Call CreateTopic(). Override only the CancellationToken, using a per-RPC-method CallSettings.
// The CallSettings used during this RPC invocation is:
// * A custom "ClientVersion" header.
// * A Timing deadline of 'deadline' (*not* the overridden 5-second timeout).
// * The CancellationToken 'cancellationToken' (*not* CancellationToken.None).
Topic topic = client.CreateTopic(topicName, CallSettings.FromCancellationToken(cancellationToken));
// End sample
}
public void Emulator()
{
// Sample: Emulator
// [START pubsub_use_emulator]
// For example, "localhost:8615"
string emulatorHostAndPort = Environment.GetEnvironmentVariable("PUBSUB_EMULATOR_HOST");
PublisherServiceApiClient client = new PublisherServiceApiClientBuilder
{
Endpoint = emulatorHostAndPort,
ChannelCredentials = ChannelCredentials.Insecure
}.Build();
client.CreateTopic(new TopicName("project", "topic"));
foreach (var topic in client.ListTopics(new ProjectName("project")))
{
Console.WriteLine(topic.Name);
}
// [END pubsub_use_emulator]
// End sample
}
public void ClientPerMethod()
{
string projectId = _fixture.ProjectId;
string topicId = _fixture.CreateTopicId();
// Sample: ClientPerMethod
// Create a default PublisherServiceApiSettings, with a custom header for calls
// to the CreateTopic RPC method.
PublisherServiceApiSettings publisherSettings = new PublisherServiceApiSettings();
publisherSettings.CreateTopicSettings = publisherSettings.CreateTopicSettings.WithHeader("ClientVersion", "1.0.0");
PublisherServiceApiClient client = new PublisherServiceApiClientBuilder {
Settings = publisherSettings
}.Build();
// Create a topic name from the projectId and topicId.
TopicName topicName = new TopicName(projectId, topicId);
// The custom 'ClientVersion' header will be included in the RPC call, due to
// the client being configured with 'publishersettings' above.
Topic topic = client.CreateTopic(topicName);
// End sample
}