Kafka publishing message formats
Overview
This topic outlines the formats of the messages sent from Gateway Hub to the downstream Kafka instance.
Messages are sent in a JSON format and contain normalised metric and event data.
Message payloads - metrics
Type |
Payload |
Comments |
---|---|---|
Headline schema |
This is a combined schema. Both raw and enriched headlines (if present) are included. Normalisation: In this example, |
|
Table schema |
This is a combined schema. Both raw and enriched columns (if present) are included. Normalisation: In this example, |
|
Table metric |
This is a raw data message, only raw columns appear. Normalisation: timestamps include fractions of a second. |
|
Table metric |
This is an enriched data message, only enriched columns appear. Normalisation: timestamps include fractions of a second. |
|
Headline metric |
Normalisation: timestamps include fractions of a second. |