Kafka Consumer

The main purpose of the Kafka Consumer is to read data from a topic. The Kafka consumer fetches the messages from topic's partitions. The Kafka Consumer required Deserializer to transform bytes to object to identify key and value of messages.

If a consumer reads data from a topic's partition, data/messages comes in order way such as message 0, message 1, message 2, message 3, message 4, message 5 and so on.

If a consumer reads data from a multiple topic's partitions, there is no ordering across partitions.

1. The main purpose of the Kafka Consumer is read data from a topic.
2. The Kafka consumer fetches the messages from topic's partitions.
3. The Kafka Consumer required Deserializer to transform bytes to object to identify key and value of messages.
4. If a consumer reads data from a topic's partition, data/messages comes in order way such as message 0, message 1, message 2, message 3, message 4, message 5 and so on.
5. If a consumer reads data from a multiple topic's partitions, there is no ordering across partitions.
6. Example of KeyDeserializer=IntegerDeserializer.
7. Example of ValueDeserializer=StringDeserializer.

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Create Kafka Consumer In Java

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