Facts Wire Format - Version 3

Facts are represented as JSON. Unless otherwise noted, null is not allowed anywhere in the set of facts.

{"name": <string>,
 "environment": <string>,
 "producer-timestamp": <datetime>,
 "values": {
     <string>: <any>,

The "name" key is the certname the facts are associated with.

The "environment" key is the environment associated to the node when the facts were collected.

The "values" key points to a JSON Object that represents the set of facts. Each key is the fact name, and the value is the fact value.

The "producer-timestamp" key points to a timestamp reflecting the time of fact set submission from the master to PuppetDB.

Fact names and values MUST be strings.


The entire fact set is expected to be valid JSON, which mandates UTF-8 encoding.

Differences with the fact wire format version 2

  1. Added an “producer-timestamp” key to the top-level facts object
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The page rank or the 1 our of 5 rating a user has given the page.
The email address of the user submitting feedback.
The URL of the page being ranked/rated.