Iot Create-stream

Can someone explain to me how to consume IoT stream?

I used create-stream cli: https://docs.aws.amazon.com/cli/latest/reference/iot/create-stream.html

{
"streams": [
{
"streamId": "12345",
"streamArn": "arn:aws:iot:us-east-1:934131814114:stream/12345",
"streamVersion": 1
}
]
}