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POST
Preview a segment filter

Authorizations

Authorization
string
header
required

Organization API key, sent as Authorization: Bearer boom_org_....

Body

application/json
filterExpression
object
required

The audience filter: a tree of predicates over person attributes, related data, and events. Discover valid attr tokens and operators with segments_catalog (GET /api/v1/segments/catalog).

Response

Success

count
integer
required

People currently matching the filter (capped when huge).

Required range: -9007199254740991 <= x <= 9007199254740991