kafka get partition count for a topic

Question

How can I get number of partitions for any kafka topic from the code. I have researched many links but none seem to work.

Mentioning a few:

http://grokbase.c

Answer 1

In java code we can use AdminClient to get sum partions of one topic.

Properties props = new Properties();
props.put("bootstrap.servers", "host:9092");
AdminClient client = AdminClient.create(props);

DescribeTopicsResult result = client.describeTopics(Arrays.asList("TEST"));
Map>  values = result.values();
KafkaFuture topicDescription = values.get("TEST");
int partitions = topicDescription.get().partitions().size();
System.out.println(partitions);