When do I need to Kinesis Data Streams together with Kinesis Firehose?

Question

I want to build a use case where I want to do real time analytics. I am not sure when it is necessary to use Kinesis Data Streams before Kinesis Firehose. In the documentation it says that Kinesis Firehose can get the data from Kinesis Data Streams but the use cases are not clear. https://aws.amazon.com/kinesis/data-firehose/faqs/?nc=sn&loc=5

Answer 1

So the benefit of using Kinesis Firehose to have data passed from Kinesis Data Streams is that it integrates directly with the following services: S3, Redshift, ElasticSearch Service, Splunk.

If you want your streamed data to be delivered to any of those endpoints by passing to Firehose you can have it do the work for you.

Traditionally you'd write your own consumer which would be another piece of code to develop and maintain if it breaks. But using Firehose you can rely on AWS to do this part for you.