Discriminator indicating this is a single preview response
Array of preview variants. Each preview corresponds to an input set from the request. If no inputs were provided, returns a single default preview.
Unique identifier for this preview variant
Array of rendered pieces for this preview variant. Most formats render as a single piece. Companion ad formats (video + banner), multi-placement formats, and adaptive formats render as multiple pieces.
The input parameters that generated this preview variant. Echoes back the request input or shows defaults used.
Human-readable name for this variant
Optionalmacros?: { [k: string]: string | undefined }Macro values applied to this variant
Optionalcontext_description?: stringContext description applied to this variant
Optionalinteractive_Optional URL to an interactive testing page that shows all preview variants with controls to switch between them, modify macro values, and test different scenarios.
ISO 8601 timestamp when preview links expire
OptionalcontextOptionalext
Single preview response - each preview URL returns an HTML page that can be embedded in an iframe