Looks good. In market for something like this and I just ran it locally. how do I visualize data ? Is Grafana not included by default.

Also, minor issue in your docs. There is an extra comma in the sample JSON under the sample event. The fragment below:

        "properties": {
            "totalAccounts": 4,
            "country": "Denmark"
        },
    }]

I had to remove that comma at the end.