public static async Task RegisterHandler <T1, T2>(
Consumer <T1, T2> consumer,
IEnumerable <string> topics,
Func <string, T2, Task> handler)
{
using (consumer)
{
KafkaHelper.SubscribeToEvents <T1, T2>(consumer, topics);
while (true)
{
try
{
var cr = await consumer.ConsumeAsync();
if (!cr.Error.IsError)
{
await handler(cr.Topic, cr.Value);
}
else
{
Console.WriteLine("No message");
}
}
catch (ConsumeException e)
{
Console.WriteLine($"Error occured: {e.Error.Reason}");
}
}
}
}
public static async Task Consume()
{
var conf = new Dictionary <string, object>
{
{ "group.id", "consumer-group-1" },
{ "bootstrap.servers", "localhost:9092" },
{ "auto.offset.reset", "earliest" }
};
using (var c = new Consumer <Ignore, string>(conf, null, new StringDeserializer(Encoding.UTF8)))
{
await KafkaHelper.RegisterHandler(
c,
GetLogEvents(),
async (topic, message) => await InsertEvent(KafkaHelper.GetEventTypeFromTopic(topic), message));
}
}