Can an AWS EventBridge Rule target a Kinesis Data Stream (with a custom event, not AWS event)?

Question

In EventBridge I have an Event Bus with 2 Rules. In Kinesis I have a Data Stream.

One of the Rules has as a Target a Log Group in CloudWatch. The second Rule has as a Targe my Data Stream in Kinesis. This Rule has a Role with a Policy to execute all needed actions on my Data Stream.

When I go to my Event Bus and test it using "Send events" button, I see the event in the Log Group but nothing in my Data Stream.
In "Event source" I enter: `com.mycompany.poc.eventbus`

EventBridge -> Rule -> Kinesis Streams

I don't find any other activity in Cloud Trail nor Cloud Watch. My Event Pattern is like this:

```
{
  "source": ["com.mycompany.poc.eventbus"]
}
```

Does someone have any clue?

Accepted Answer

Events in EventBridge can only accept the following fields: Time, Source, Resources, DetailType, Detail, EventBusName, TraceHeader. If you need to pass additional information, such as a partition key, you need to include it inside the Detail field.

If you need to include a Partition key when sending to Kinesis, you will need to use an Input Transformer to create the appropriate structure, and use the key from the Detail fiel.

Answer

Thanks [Uri](https://repost.aws/community/users/USZDcaDfxEQkCQx1ElSzRrQA),

another option that I found is to include PartitionKey inside Detail,

then in Target Rule add:
`\"InputPath\":\"$.detail\" , \"KinesisParameters\":{\"PartitionKeyPath\":\"$.detail.PartitionKey\"}`

Answer

It looks like the Kinesis Data Stream needs to receive PartitionKey
but I can't include PartitionKey in the EventBridge Event.
I'm trying this: 
```
aws events put-events --entries '[{"Source": "my.source", "DetailType": "my.detailtype", "Detail": "{\"key\": \"value\"}", "PartitionKey": "my_partition_key", "EventBusName": "myEventBus"}]'
```
But I get this error:
Unknown parameter in Entries[0]: "PartitionKey", must be one of: Time, Source, Resources, DetailType, Detail, EventBusName, TraceHeader

Any clue?

Can an AWS EventBridge Rule target a Kinesis Data Stream (with a custom event, not AWS event)?

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