package openrtb

import "encoding/json"

// 3.2.9 Object: Native
//
// This object represents a native type impression.
// Native ad units are intended to blend seamlessly into the surrounding content (e.g., a sponsored Twitter or Facebook post).
// As such, the response must be well-structured to afford the publisher fine-grained control over rendering.
//
// The Native Subcommittee has developed a companion specification to OpenRTB called the Dynamic Native Ads API.
// It defines the request parameters and response markup structure of native ad units.
// This object provides the means of transporting request parameters as an opaque string so that the specific parameters can evolve separately under the auspices of the Dynamic Native Ads API.
// Similarly, the ad markup served will be structured according to that specification.
//
// The presence of a Native as a subordinate of the Imp object indicates that this impression is offered as a native type impression.
// At the publisher’s discretion, that same impression may also be offered as banner, video, and/or audio by also including as Imp subordinates objects of those types.
// However, any given bid for the impression must conform to one of the offered types.
type Native struct {

	// Attribute:
	//   request
	// Type:
	//   string; required
	// Description:
	//   Request payload complying with the Native Ad Specification.
	Request string `json:"request"`

	// Attribute:
	//   ver
	// Type:
	//   string; recommended
	// Description:
	//   Version of the Dynamic Native Ads API to which request
	//   complies; highly recommended for efficient parsing.
	Ver string `json:"ver,omitempty"`

	// Attribute:
	//   api
	// Type:
	//   integer array
	// Description:
	//   List of supported API frameworks for this impression. Refer to
	//   List 5.6. If an API is not explicitly listed, it is assumed not to be
	//   supported.
	API []APIFramework `json:"api,omitempty"`

	// Attribute:
	//   sequence
	// Type:
	//   integer array
	// Description:
	//   Blocked creative attributes. Refer to List 5.3.
	BAttr []CreativeAttribute `json:"battr,omitempty"`

	// Attribute:
	//   ext
	// Type:
	//   object
	// Description:
	//   Placeholder for exchange-specific extensions to OpenRTB.
	Ext json.RawMessage `json:"ext,omitempty"`
}