Data Enrichment

The HUMAN Fastly Enforcer provides a hook function where processing is performed on the data enrichment payload

px_custom.vcl contains the custom hook function px_custom_data_enrichment_handler.

The function receives the following headers:

• X-PX-data-enrichment: A JSON string with data enrichment.
• X-PX-data-enrichment-validated: A boolean flag indicating when data enrichment is trusted and has not been tampered with (possible values: 0 or 1)

To extract values from the JSON object, set: req.http.X-PX-de-value = if (req.http.X-PX-data-enrichment ~ {“”VALUE_HERE”:”([^”]*)”}, re.group.1, “”);

When it is determined that the request should be passed to the backend server, set the X-PX-de-pass-request = “1”

Example:

px_custom_data_enrichment_handler {

set req.http.X-PX-de-f-type = if (req.http.X-PX-data-enrichment ~ {“”f_type”:”([^”]*)”},
re.group.1, “”);

  if (req.http.X-PX-de-f-type == “w”) {
    set req.http.X-PX-de-pass-request = “1”;
  }
}