Implement Appier Analytics Adapter.

modules/appierAnalyticsAdapter.js

@@ -0,0 +1,244 @@
+import {ajax} from '../src/ajax';
+import adapter from '../src/AnalyticsAdapter';
+import CONSTANTS from '../src/constants.json';
+import adapterManager from '../src/adapterManager';
+import {logError, logInfo, deepClone} from '../src/utils';
+
+const analyticsType = 'endpoint';
+
+export const ANALYTICS_VERSION = '1.0.0';
+
+const DEFAULT_SERVER = 'https://prebid-analytics.c.appier.net/v1';
+
+const {
+  EVENTS: {
+    AUCTION_END,
+    BID_WON,
+    BID_TIMEOUT
+  }
+} = CONSTANTS;
+
+export const BIDDER_STATUS = {
+  BID: 'bid',
+  NO_BID: 'noBid',
+  BID_WON: 'bidWon',
+  TIMEOUT: 'timeout'
+};
+
+export const getCpmInUsd = function (bid) {
+  if (bid.currency === 'USD') {
+    return bid.cpm;
+  } else {
+    return bid.getCpmInNewCurrency('USD');
+  }
+};
+
+const analyticsOptions = {};
+
+export const parseBidderCode = function (bid) {
+  let bidderCode = bid.bidderCode || bid.bidder;
+  return bidderCode.toLowerCase();
+};
+
+export const parseAdUnitCode = function (bidResponse) {
+  return bidResponse.adUnitCode.toLowerCase();
+};
+
+export const appierAnalyticsAdapter = Object.assign(adapter({DEFAULT_SERVER, analyticsType}), {
+
+  cachedAuctions: {},
+
+  initConfig(config) {
+    /**
+     * Required option: affiliateId
+     * Required option: configId
+     *
+     * Optional option: server
+     * Optional option: sampling
+     * Optional option: adSampling
+     * Optional option: autoPick
+     * Optional option: predictionId
+     * @type {boolean}
+     */
+    analyticsOptions.options = deepClone(config.options);
+    if (typeof config.options.affiliateId !== 'string' || config.options.affiliateId.length < 1) {
+      logError('"options.affiliateId" is required.');
+      return false;
+    }
+    if (typeof config.options.configId !== 'string' || config.options.configId.length < 1) {
+      logError('"options.configId" is required.');
+      return false;
+    }
+
+    analyticsOptions.affiliateId = config.options.affiliateId;
+    analyticsOptions.configId = config.options.configId;
+    analyticsOptions.server = config.options.server || DEFAULT_SERVER;
+
+    analyticsOptions.sampled = true;
+    if (typeof config.options.sampling === 'number') {
+      analyticsOptions.sampled = Math.random() < parseFloat(config.options.sampling);
+    }
+    analyticsOptions.adSampled = false;
+    if (typeof config.options.adSampling === 'number') {
+      analyticsOptions.adSampled = Math.random() < parseFloat(config.options.adSampling);
+    }
+    analyticsOptions.autoPick = config.options.autoPick || null;
+    analyticsOptions.predictionId = config.options.predictionId || null;
+
+    return true;
+  },
+  sendEventMessage(endPoint, data) {
+    logInfo(`AJAX: ${endPoint}: ` + JSON.stringify(data));
+
+    ajax(`${analyticsOptions.server}/${endPoint}`, null, JSON.stringify(data), {
+      contentType: 'application/json',
+      withCredentials: true
+    });
+  },
+  createCommonMessage(auctionId) {
+    return {
+      version: ANALYTICS_VERSION,
+      auctionId: auctionId,
+      affiliateId: analyticsOptions.affiliateId,
+      configId: analyticsOptions.configId,
+      referrer: window.location.href,
+      sampling: analyticsOptions.options.sampling,
+      adSampling: analyticsOptions.options.adSampling,
+      prebid: '$prebid.version$',
+      autoPick: analyticsOptions.autoPick,
+      predictionId: analyticsOptions.predictionId,
+      adUnits: {},
+    };
+  },
+  serializeBidResponse(bid, status) {
+    const result = {
+      prebidWon: (status === BIDDER_STATUS.BID_WON),
+      isTimeout: (status === BIDDER_STATUS.TIMEOUT),
+      status: status,
+    };
+    if (status === BIDDER_STATUS.BID || status === BIDDER_STATUS.BID_WON) {
+      Object.assign(result, {
+        time: bid.timeToRespond,
+        cpm: bid.cpm,
+        currency: bid.currency,
+        originalCpm: bid.originalCpm || bid.cpm,
+        cpmUsd: getCpmInUsd(bid),
+        originalCurrency: bid.originalCurrency || bid.currency,
+      });
+    }
+    return result;
+  },
+  addBidResponseToMessage(message, bid, status) {
+    const adUnitCode = parseAdUnitCode(bid);
+    message.adUnits[adUnitCode] = message.adUnits[adUnitCode] || {};
+    const bidder = parseBidderCode(bid);
+    const bidResponse = this.serializeBidResponse(bid, status);
+    message.adUnits[adUnitCode][bidder] = bidResponse;
+  },
+  createBidMessage(auctionEndArgs, winningBids, timeoutBids) {
+    const {auctionId, timestamp, timeout, auctionEnd, adUnitCodes, bidsReceived, noBids} = auctionEndArgs;
+    const message = this.createCommonMessage(auctionId);
+
+    message.auctionElapsed = (auctionEnd - timestamp);
+    message.timeout = timeout;
+
+    adUnitCodes.forEach((adUnitCode) => {
+      message.adUnits[adUnitCode] = {};
+    });
+
+    // We handled noBids first because when currency conversion is enabled, a bid with a foreign currency
+    // will be set to NO_BID initially, and then set to BID after the currency rate json file is fully loaded.
+    // In this situation, the bid exists in both noBids and bids arrays.
+    noBids.forEach(bid => this.addBidResponseToMessage(message, bid, BIDDER_STATUS.NO_BID));
+
+    // This array may contain some timeout bids (responses come back after auction timeout)
+    bidsReceived.forEach(bid => this.addBidResponseToMessage(message, bid, BIDDER_STATUS.BID));
+
+    // We handle timeout after bids since it's possible that a bid has a response, but the response comes back
+    // after auction end. In this case, the bid exists in both bidsReceived and timeoutBids arrays.
+    timeoutBids.forEach(bid => this.addBidResponseToMessage(message, bid, BIDDER_STATUS.TIMEOUT));
+
+    // mark the winning bids with prebidWon = true
+    winningBids.forEach(bid => {
+      const adUnitCode = parseAdUnitCode(bid);
+      const bidder = parseBidderCode(bid);
+      message.adUnits[adUnitCode][bidder].prebidWon = true;
+    });
+    return message;
+  },
+  createImpressionMessage(bid) {
+    const message = this.createCommonMessage(bid.auctionId);
+    this.addBidResponseToMessage(message, bid, BIDDER_STATUS.BID_WON);
+    return message;
+  },
+  createCreativeMessage(auctionId, bids) {
+    const message = this.createCommonMessage(auctionId);
+    bids.forEach((bid) => {
+      const adUnitCode = parseAdUnitCode(bid);
+      const bidder = parseBidderCode(bid);
+      message.adUnits[adUnitCode] = message.adUnits[adUnitCode] || {};
+      message.adUnits[adUnitCode][bidder] = {ad: bid.ad};
+    });
+    return message;
+  },
+  getCachedAuction(auctionId) {
+    this.cachedAuctions[auctionId] = this.cachedAuctions[auctionId] || {
+      timeoutBids: [],
+    };
+    return this.cachedAuctions[auctionId];
+  },
+  handleAuctionEnd(auctionEndArgs) {
+    const cachedAuction = this.getCachedAuction(auctionEndArgs.auctionId);
+    const highestCpmBids = pbjs.getHighestCpmBids();
+    this.sendEventMessage('bid',
+      this.createBidMessage(auctionEndArgs, highestCpmBids, cachedAuction.timeoutBids)
+    );
+    if (analyticsOptions.adSampled) {
+      this.sendEventMessage('cr',
+        this.createCreativeMessage(auctionEndArgs.auctionId, auctionEndArgs.bidsReceived)
+      );
+    }
+  },
+  handleBidTimeout(timeoutBids) {
+    timeoutBids.forEach((bid) => {
+      const cachedAuction = this.getCachedAuction(bid.auctionId);
+      cachedAuction.timeoutBids.push(bid);
+    });
+  },
+  handleBidWon(bidWonArgs) {
+    this.sendEventMessage('imp', this.createImpressionMessage(bidWonArgs));
+  },
+  track({eventType, args}) {
+    if (analyticsOptions.sampled) {
+      switch (eventType) {
+        case BID_WON:
+          this.handleBidWon(args);
+          break;
+        case BID_TIMEOUT:
+          this.handleBidTimeout(args);
+          break;
+        case AUCTION_END:
+          this.handleAuctionEnd(args);
+          break;
+      }
+    }
+  },
+  getAnalyticsOptions() {
+    return analyticsOptions;
+  },
+});
+
+// save the base class function
+appierAnalyticsAdapter.originEnableAnalytics = appierAnalyticsAdapter.enableAnalytics;
+
+// override enableAnalytics so we can get access to the config passed in from the page
+appierAnalyticsAdapter.enableAnalytics = function (config) {
+  if (this.initConfig(config)) {
+    appierAnalyticsAdapter.originEnableAnalytics(config); // call the base class function
+  }
+};
+
+adapterManager.registerAnalyticsAdapter({
+  adapter: appierAnalyticsAdapter,
+  code: 'appierAnalytics'
+});

modules/appierAnalyticsAdapter.md

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+# Overview
+
+Module Name: Appier Analytics Adapter
+Module Type: Analytics Adapter
+Maintainer: [email protected]
+
+# Description
+
+Analytics adapter for Appier
+
+# Test Parameters
+
+```
+{
+  provider: 'appierAnalytics',
+  options: {
+    'configId': 'YOUR_CONFIG_ID',
+    'affiliateId': 'YOUR_AFFILIATE_ID',
+  }
+}
+```
+
+PS. [Prebid currency module](http://prebid.org/dev-docs/modules/currency.html) is required, please make sure your prebid code contains currency module code.