Native support for NextRoll adapter

modules/nextrollBidAdapter.js

@@ -1,16 +1,16 @@
 import * as utils from '../src/utils.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
-import { BANNER } from '../src/mediaTypes.js';
+import { BANNER, NATIVE } from '../src/mediaTypes.js';
 
 import find from 'core-js-pure/features/array/find.js';
 
 const BIDDER_CODE = 'nextroll';
 const BIDDER_ENDPOINT = 'https://d.adroll.com/bid/prebid/';
-const ADAPTER_VERSION = 4;
+const ADAPTER_VERSION = 5;
 
 export const spec = {
   code: BIDDER_CODE,
-  supportedMediaTypes: [BANNER],
+  supportedMediaTypes: [BANNER, NATIVE],
 
   /**
    * Determines whether or not the given bid request is valid.
@@ -43,9 +43,8 @@ export const spec = {
           imp: {
             id: bidRequest.bidId,
             bidfloor: utils.getBidIdParameter('bidfloor', bidRequest.params),
-            banner: {
-              format: _getSizes(bidRequest)
-            },
+            banner: _getBanner(bidRequest),
+            native: _getNative(utils.deepAccess(bidRequest, 'mediaTypes.native')),
             ext: {
               zone: {
                 id: utils.getBidIdParameter('zoneId', bidRequest.params)
@@ -82,6 +81,98 @@ export const spec = {
   }
 }
 
+function _getBanner(bidRequest) {
+  let sizes = _getSizes(bidRequest)
+  if (sizes === undefined) return undefined
+  return {format: sizes}
+}
+
+function _getNative(mediaTypeNative) {
+  if (mediaTypeNative === undefined) return undefined
+  let assets = _getNativeAssets(mediaTypeNative)
+  if (assets === undefined || assets.length == 0) return undefined
+  return {
+    request: {
+      native: {
+        assets: assets
+      }
+    }
+  }
+}
+
+/*
+  id: Unique numeric id for the asset
+  kind: OpenRTB kind of asset. Supported: title, img and data.
+  key: Name of property that comes in the mediaType.native object.
+  type: OpenRTB type for that spefic kind of asset.
+  required: Overrides the asset required field configured, only overrides when is true.
+*/
+const NATIVE_ASSET_MAP = [
+  {id: 1, kind: 'title', key: 'title', required: true},
+  {id: 2, kind: 'img', key: 'image', type: 3, required: true},
+  {id: 3, kind: 'img', key: 'icon', type: 1},
+  {id: 4, kind: 'img', key: 'logo', type: 2},
+  {id: 5, kind: 'data', key: 'sponsoredBy', type: 1},
+  {id: 6, kind: 'data', key: 'body', type: 2}
+]
+
+const ASSET_KIND_MAP = {
+  title: _getTitleAsset,
+  img: _getImageAsset,
+  data: _getDataAsset,
+}
+
+function _getAsset(mediaTypeNative, assetMap) {
+  let asset = mediaTypeNative[assetMap.key]
+  if (asset === undefined) return undefined
+  let assetFunc = ASSET_KIND_MAP[assetMap.kind]
+  return {
+    id: assetMap.id,
+    required: (assetMap.required || !!asset.required) ? 1 : 0,
+    [assetMap.kind]: assetFunc(asset, assetMap)
+  }
+}
+
+function _getTitleAsset(title, _assetMap) {
+  return {len: title.len || 0}
+}
+
+function _getMinAspectRatio(aspectRatio, property) {
+  if (!utils.isPlainObject(aspectRatio)) return 1
+
+  let ratio = aspectRatio['ratio_' + property]
+  let min = aspectRatio['min_' + property]
+
+  if (utils.isNumber(ratio)) return ratio
+  if (utils.isNumber(min)) return min
+
+  return 1
+}
+
+function _getImageAsset(image, assetMap) {
+  let sizes = image.sizes
+  let aspectRatio = image.aspect_ratios ? image.aspect_ratios[0] : undefined
+
+  return {
+    type: assetMap.type,
+    w: (sizes ? sizes[0] : undefined),
+    h: (sizes ? sizes[1] : undefined),
+    wmin: _getMinAspectRatio(aspectRatio, 'width'),
+    hmin: _getMinAspectRatio(aspectRatio, 'height'),
+  }
+}
+
+function _getDataAsset(data, assetMap) {
+  return {
+    type: assetMap.type,
+    len: data.len || 0
+  }
+}
+
+function _getNativeAssets(mediaTypeNative) {
+  return NATIVE_ASSET_MAP.map(assetMap => _getAsset(mediaTypeNative, assetMap)).filter(asset => asset !== undefined)
+}
+
 function _getUser(requests) {
   let id = utils.deepAccess(requests, '0.userId.nextroll');
   if (id === undefined) {
@@ -99,8 +190,7 @@ function _getUser(requests) {
 }
 
 function _buildResponse(bidResponse, bid) {
-  const adm = utils.replaceAuctionPrice(bid.adm, bid.price);
-  return {
+  let response = {
     requestId: bidResponse.id,
     cpm: bid.price,
     width: bid.w,
@@ -109,8 +199,53 @@ function _buildResponse(bidResponse, bid) {
     dealId: bidResponse.dealId,
     currency: 'USD',
     netRevenue: true,
-    ttl: 300,
-    ad: adm
+    ttl: 300
+  }
+  if (utils.isStr(bid.adm)) {
+    response.mediaType = BANNER
+    response.ad = utils.replaceAuctionPrice(bid.adm, bid.price)
+  } else {
+    response.mediaType = NATIVE
+    response.native = _getNativeResponse(bid.adm, bid.price)
+  }
+  return response
+}
+
+const privacyLink = 'https://info.evidon.com/pub_info/573';
+const privacyIcon = 'https://c.betrad.com/pub/icon1.png';
+
+function _getNativeResponse(adm, price) {
+  let baseResponse = {
+    clickTrackers: (adm.link && adm.link.clicktrackers) || [],
+    jstracker: adm.jstracker || [],
+    clickUrl: utils.replaceAuctionPrice(adm.link.url, price),
+    impressionTrackers: adm.imptrackers.map(impTracker => utils.replaceAuctionPrice(impTracker, price)),
+    privacyLink: privacyLink,
+    privacyIcon: privacyIcon
+  }
+  return adm.assets.reduce((accResponse, asset) => {
+    let assetMaps = NATIVE_ASSET_MAP.filter(assetMap => assetMap.id === asset.id && asset[assetMap.kind] !== undefined)
+    if (assetMaps.length === 0) return accResponse
+    let assetMap = assetMaps[0]
+    accResponse[assetMap.key] = _getAssetResponse(asset, assetMap)
+    return accResponse
+  }, baseResponse)
+}
+
+function _getAssetResponse(asset, assetMap) {
+  switch (assetMap.kind) {
+    case 'title':
+      return asset.title.text
+
+    case 'img':
+      return {
+        url: asset.img.url,
+        width: asset.img.w,
+        height: asset.img.h
+      }
+
+    case 'data':
+      return asset.data.value
   }
 }
 
@@ -131,6 +266,9 @@ function _getSeller(bidRequest) {
 }
 
 function _getSizes(bidRequest) {
+  if (!utils.isArray(bidRequest.sizes)) {
+    return undefined
+  }
   return bidRequest.sizes.filter(_isValidSize).map(size => {
     return {
       w: size[0],
@@ -191,6 +329,7 @@ function _getOsVersion(userAgent) {
 }
 
 export function hasCCPAConsent(bidderRequest) {
+  if (bidderRequest === undefined) return true;
   if (typeof bidderRequest.uspConsent !== 'string') {
     return true;
   }

modules/nextrollBidAdapter.md

@@ -9,9 +9,11 @@ Maintainer: prebid@nextroll.com
 # Description
 
 Module that connects to NextRoll's bidders.
-The NextRoll bid adapter supports Banner format only.
+The NextRoll bid adapter supports banner and native format.
 
 # Test Parameters
+
+## Banner Example
 ``` javascript
 var adUnits = [
     {
@@ -47,4 +49,29 @@ var adUnits = [
         }]
     }
 ]
+```
+
+## Native Example
+```javascript
+var adUnits = [
+    {
+        code: 'div-1',
+        mediaTypes: {
+            native: {
+                title: { required: true, len: 80 },
+                image: { required: true, sizes: [728, 90] },
+                sponsoredBy: { required: false, len: 20 }
+            }
+        },
+        bids: [{
+            bidder: 'nextroll',
+            params: {
+                bidfloor: 1,
+                zoneId: "13144370",
+                publisherId: "publisherId",
+                sellerId: "sellerId",
+            }
+        }]
+    }
+];
 ```

test/spec/modules/nextrollBidAdapter_spec.js

@@ -27,6 +27,44 @@ describe('nextrollBidAdapter', function() {
   let bidWithoutValidId = { id: '' };
   let bidWithoutId = { params: { zoneId: 'zone1' } };
 
+  describe('nativeBidRequest', () => {
+    it('validates native spec', () => {
+      let nativeAdUnit = [{
+        bidder: 'nextroll',
+        adUnitCode: 'adunit-code',
+        bidId: 'bid_id',
+        mediaTypes: {
+          native: {
+            title: {required: true, len: 80},
+            image: {required: true, sizes: [728, 90]},
+            sponsoredBy: {required: false, len: 20},
+            clickUrl: {required: true},
+            body: {required: true, len: 25},
+            icon: {required: true, sizes: [50, 50], aspect_ratios: [{ratio_height: 3, ratio_width: 4}]},
+            someRandomAsset: {required: false, len: 100} // This should be ignored
+          }
+        },
+        params: {
+          bidfloor: 1,
+          zoneId: 'zone1',
+          publisherId: 'publisher_id'
+        }
+      }];
+
+      let request = spec.buildRequests(nativeAdUnit)
+      let assets = request[0].data.imp.native.request.native.assets
+
+      let excptedAssets = [
+        {id: 1, required: 1, title: {len: 80}},
+        {id: 2, required: 1, img: {w: 728, h: 90, wmin: 1, hmin: 1, type: 3}},
+        {id: 3, required: 1, img: {w: 50, h: 50, wmin: 4, hmin: 3, type: 1}},
+        {id: 5, required: 0, data: {len: 20, type: 1}},
+        {id: 6, required: 1, data: {len: 25, type: 2}}
+      ]
+      expect(assets).to.be.deep.equal(excptedAssets)
+    })
+  })
+
   describe('isBidRequestValid', function() {
     it('validates the bids correctly when the bid has an id', function() {
       expect(spec.isBidRequestValid(validBid)).to.be.true;
@@ -142,6 +180,85 @@ describe('nextrollBidAdapter', function() {
     });
   });
 
+  describe('interpret native response', () => {
+    let clickUrl = 'https://clickurl.com/with/some/path'
+    let titleText = 'Some title'
+    let imgW = 300
+    let imgH = 250
+    let imgUrl = 'https://clickurl.com/img.png'
+    let brandText = 'Some Brand'
+    let impUrl = 'https://clickurl.com/imptracker'
+
+    let responseBody = {
+      body: {
+        id: 'bidresponse_id',
+        seatbid: [{
+          bid: [{
+            price: 1.2,
+            crid: 'crid1',
+            adm: {
+              link: {url: clickUrl},
+              assets: [
+                {id: 1, title: {text: titleText}},
+                {id: 2, img: {w: imgW, h: imgH, url: imgUrl}},
+                {id: 5, data: {value: brandText}}
+              ],
+              imptrackers: [impUrl]
+            }
+          }]
+        }]
+      }
+    };
+
+    it('Should interpret response', () => {
+      let response = spec.interpretResponse(utils.deepClone(responseBody))
+      let expectedResponse = {
+        clickUrl: clickUrl,
+        impressionTrackers: [impUrl],
+        privacyLink: 'https://info.evidon.com/pub_info/573',
+        privacyIcon: 'https://c.betrad.com/pub/icon1.png',
+        title: titleText,
+        image: {url: imgUrl, width: imgW, height: imgH},
+        sponsoredBy: brandText,
+        clickTrackers: [],
+        jstracker: []
+      }
+
+      expect(response[0].native).to.be.deep.equal(expectedResponse)
+    })
+
+    it('Should interpret all assets', () => {
+      let allAssetsResponse = utils.deepClone(responseBody)
+      let iconUrl = imgUrl + '?icon=true', iconW = 10, iconH = 15
+      let logoUrl = imgUrl + '?logo=true', logoW = 20, logoH = 25
+      let bodyText = 'Some body text'
+
+      allAssetsResponse.body.seatbid[0].bid[0].adm.assets.push(...[
+        {id: 3, img: {w: iconW, h: iconH, url: iconUrl}},
+        {id: 4, img: {w: logoW, h: logoH, url: logoUrl}},
+        {id: 6, data: {value: bodyText}}
+      ])
+
+      let response = spec.interpretResponse(allAssetsResponse)
+      let expectedResponse = {
+        clickUrl: clickUrl,
+        impressionTrackers: [impUrl],
+        jstracker: [],
+        clickTrackers: [],
+        privacyLink: 'https://info.evidon.com/pub_info/573',
+        privacyIcon: 'https://c.betrad.com/pub/icon1.png',
+        title: titleText,
+        image: {url: imgUrl, width: imgW, height: imgH},
+        icon: {url: iconUrl, width: iconW, height: iconH},
+        logo: {url: logoUrl, width: logoW, height: logoH},
+        body: bodyText,
+        sponsoredBy: brandText
+      }
+
+      expect(response[0].native).to.be.deep.equal(expectedResponse)
+    })
+  })
+
   describe('hasCCPAConsent', function() {
     function ccpaRequest(consentString) {
       return {