static void Main(string[] args)
{
Console.WriteLine("Starting subsriber app...");
var natsConnectionOptions = StanOptions.GetDefaultOptions();
natsConnectionOptions.NatsURL = "nats://localhost:4222";
natsConnectionOptions.ServerHeartbeatTimeoutCallback = () =>
{
Console.WriteLine("Hurrr... connection problem!");
};
natsConnectionOptions.ServerHeartbeatTimeoutMillis = 10000;
var stanConnection = new StanConnectionFactory().CreateConnection("test-cluster", $"subscirber-name", natsConnectionOptions);
var options = StanSubscriptionOptions.GetDefaultOptions();
stanConnection.Subscribe($"some-channel", options, (sender, e) =>
{
Console.WriteLine("Message received...");
});
Console.WriteLine("Started... Hit any key to quit.");
Console.ReadKey();
}
private async Task Subscriber(string dataCentre, CancellationToken token)
{
var subscriberOptions = StanOptions.GetDefaultOptions();
subscriberOptions.NatsURL = _natsClusterNodes[dataCentre];
var loopCount = 0;
using var stanConnection = new StanConnectionFactory().CreateConnection(ClusterId, $"{Environment.MachineName.ToLower()}-{dataCentre}-receiving", subscriberOptions);
using var subscribe = stanConnection.Subscribe("foo", CreateStanSubscriptionOptions(dataCentre, subscriberOptions), (obj, context) =>
{
Console.WriteLine(
$"{dataCentre}: received '{System.Text.Encoding.UTF8.GetString(context.Message.Data)}'. Redelivered: {context.Message.Redelivered}. Sequence: {context.Message.Sequence}");
Console.WriteLine($"loopCount: {Interlocked.Increment(ref loopCount)}");
});
await Task.Delay(1000000, token);
subscribe.Unsubscribe();
Console.WriteLine("Exiting subscription");
}
static void Main()
{
string serverURL = "nats://localhost:4222", clusterID = "test-cluster", clientID = "client_sub", subject = "foo_subject", queue = "foo_queue", durable = "foo_durable";
StanOptions cOpts = StanOptions.GetDefaultOptions();
cOpts.NatsURL = serverURL;
using (var c = new StanConnectionFactory().CreateConnection(clusterID, clientID, cOpts))
{
Console.WriteLine("nats: connected serverURL='{0}', clusterID='{1}', clientID='{2}'", serverURL, clusterID, clientID);
StanSubscriptionOptions sOpts = StanSubscriptionOptions.GetDefaultOptions();
sOpts.DurableName = durable;
sOpts.MaxInflight = 1;
using (var s = c.Subscribe(subject, queue, sOpts, (sender, args) =>
{
Console.WriteLine("Received seq # {0}: {1}", args.Message.Sequence, System.Text.Encoding.UTF8.GetString(args.Message.Data));
}))
{
Console.WriteLine("nats: subscribed subject='{0}', queue='{1}', durable='{2}'", subject, queue, durable);
Console.WriteLine("program: press <enter> to exit...");
Console.ReadLine();
}
}
}