public async Task <object> ProduceByOffset([FromBody] MessagePostRequest request)
{
ConsumeResult <string, string> consumeResult = null;
using (var consumer = GetConsumer(request.Broker, MaintainerGroup))
{
var topicPartitionOffset = new TopicPartitionOffset(new TopicPartition(request.Topic,
request.Partition),
request.Offset);
consumer.Assign(topicPartitionOffset);
consumer.Seek(topicPartitionOffset);
consumeResult = consumer.Consume(TimeSpan.FromSeconds(1));
}
if (consumeResult == null)
{
throw new Exception($"message doesn't exist");
}
var producer = GetProducer(request.Broker);
var produceResult = await producer.ProduceAsync(request.Topic, new Message <string, string>
{
Key = consumeResult.Key,
Value = consumeResult.Value,
Headers = consumeResult.Headers
});
return(produceResult);
}
public dynamic GetMessageByOffset([FromQuery] MessageQueryRequest request)
{
using (var consumer = GetConsumer(request.Broker, MaintainerGroup))
{
var topicPartitionOffset = new TopicPartitionOffset(new TopicPartition(request.Topic,
request.Partition),
request.Offset);
consumer.Assign(topicPartitionOffset);
consumer.Seek(topicPartitionOffset);
var result = consumer.Consume(TimeSpan.FromSeconds(1));
return(new
{
result?.Partition,
result?.Topic,
result?.Offset,
result?.Message
});
}
}
/// <inheritdoc/> public void Seek(TopicPartitionOffset tpo) => kafkaHandle.Seek(tpo.Topic, tpo.Partition, tpo.Offset, -1);
/// <inheritdoc/>
public void Assign(TopicPartitionOffset partition)
=> Assign(new List <TopicPartitionOffset> {
partition
});
