60 lines
2.2 KiB
C#
60 lines
2.2 KiB
C#
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using Confluent.Kafka;
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namespace ConsoleAppConsume
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{
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internal class Program
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{
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static void Main(string[] args)
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{
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var conf = new ConsumerConfig
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{
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GroupId = "test-consumer-group",
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BootstrapServers = "localhost:9092",
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// Note: The AutoOffsetReset property determines the start offset in the event
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// there are not yet any committed offsets for the consumer group for the
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// topic/partitions of interest. By default, offsets are committed
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// automatically, so in this example, consumption will only start from the
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// earliest message in the topic 'my-topic' the first time you run the program.
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AutoOffsetReset = AutoOffsetReset.Earliest
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};
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using (var c = new ConsumerBuilder<string, string>(conf).Build())
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{
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c.Subscribe("test-topic");
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CancellationTokenSource cts = new CancellationTokenSource();
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Console.CancelKeyPress += (_, e) =>
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{
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// Prevent the process from terminating.
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e.Cancel = true;
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cts.Cancel();
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};
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try
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{
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while (true)
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{
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try
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{
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var cr = c.Consume(cts.Token);
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var v= cr.Message.Value;
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var k=cr.Message.Key;
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Console.WriteLine($"Consumed message '{k} {v}' at: '{cr.TopicPartitionOffset}'.");
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}
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catch (ConsumeException e)
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{
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Console.WriteLine($"Error occured: {e.Error.Reason}");
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}
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}
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}
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catch (OperationCanceledException)
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{
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// Ensure the consumer leaves the group cleanly and final offsets are committed.
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c.Close();
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}
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}
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Console.WriteLine("Hello, World!");
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}
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}
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}
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