diff --git a/modules/smartadserverBidAdapter.js b/modules/smartadserverBidAdapter.js
new file mode 100644
index 00000000000..1e14195d38a
--- /dev/null
+++ b/modules/smartadserverBidAdapter.js
@@ -0,0 +1,153 @@
+import * as utils from '../src/utils';
+import {
+  BANNER,
+  VIDEO
+} from '../src/mediaTypes';
+import {
+  config
+} from '../src/config';
+import {
+  registerBidder
+} from '../src/adapters/bidderFactory';
+const BIDDER_CODE = 'smartadserver';
+export const spec = {
+  code: BIDDER_CODE,
+  aliases: ['smart'], // short code
+  supportedMediaTypes: [BANNER, VIDEO],
+  /**
+   * Determines whether or not the given bid request is valid.
+   *
+   * @param {BidRequest} bid The bid params to validate.
+   * @return boolean True if this is a valid bid, and false otherwise.
+   */
+  isBidRequestValid: function (bid) {
+    return !!(bid.params && bid.params.siteId && bid.params.pageId && bid.params.formatId);
+  },
+  /**
+   * Make a server request from the list of BidRequests.
+   *
+   * @param {validBidRequests[]} - an array of bids
+   * @param {bidderRequest} - bidder request object
+   * @return ServerRequest Info describing the request to the server.
+   */
+  buildRequests: function (validBidRequests, bidderRequest) {
+    // use bidderRequest.bids[] to get bidder-dependent request info
+
+    // if your bidder supports multiple currencies, use config.getConfig(currency)
+    // to find which one the ad server needs
+
+    // pull requested transaction ID from bidderRequest.bids[].transactionId
+    return validBidRequests.map(bid => {
+      // Common bid request attributes for banner, outstream and instream.
+      var payload = {
+        siteid: bid.params.siteId,
+        pageid: bid.params.pageId,
+        formatid: bid.params.formatId,
+        currencyCode: config.getConfig('currency.adServerCurrency'),
+        bidfloor: bid.params.bidfloor || 0.0,
+        targeting: bid.params.target && bid.params.target != '' ? bid.params.target : undefined,
+        buid: bid.params.buId && bid.params.buId != '' ? bid.params.buId : undefined,
+        appname: bid.params.appName && bid.params.appName != '' ? bid.params.appName : undefined,
+        ckid: bid.params.ckId || 0,
+        tagId: bid.adUnitCode,
+        pageDomain: bidderRequest && bidderRequest.refererInfo && bidderRequest.refererInfo.referer ? bidderRequest.refererInfo.referer : undefined,
+        transactionId: bid.transactionId,
+        timeout: config.getConfig('bidderTimeout'),
+        bidId: bid.bidId,
+        prebidVersion: '$prebid.version$'
+      };
+
+      const videoMediaType = utils.deepAccess(bid, 'mediaTypes.video');
+      if (!videoMediaType) {
+        const bannerMediaType = utils.deepAccess(bid, 'mediaTypes.banner');
+        payload.sizes = bannerMediaType.sizes.map(size => ({
+          w: size[0],
+          h: size[1]
+        }));
+      } else if (videoMediaType && videoMediaType.context === 'instream') {
+        // Specific attributes for instream.
+        var playerSize = videoMediaType.playerSize[0];
+        payload.isVideo = true;
+        payload.videoData = {
+          videoProtocol: bid.params.video.protocol,
+          playerWidth: playerSize[0],
+          playerHeight: playerSize[1],
+          adBreak: bid.params.video.startDelay || 0
+        };
+      } else {
+        return {};
+      }
+
+      if (bidderRequest && bidderRequest.gdprConsent) {
+        payload.gdpr_consent = bidderRequest.gdprConsent.consentString;
+        payload.gdpr = bidderRequest.gdprConsent.gdprApplies; // we're handling the undefined case server side
+      }
+
+      var payloadString = JSON.stringify(payload);
+      return {
+        method: 'POST',
+        url: (bid.params.domain !== undefined ? bid.params.domain : 'https://prg.smartadserver.com') + '/prebid/v1',
+        data: payloadString,
+      };
+    });
+  },
+  /**
+   * Unpack the response from the server into a list of bids.
+   *
+   * @param {*} serverResponse A successful response from the server.
+   * @return {Bid[]} An array of bids which were nested inside the server.
+   */
+  interpretResponse: function (serverResponse, bidRequestString) {
+    const bidResponses = [];
+    var response = serverResponse.body;
+    try {
+      if (response) {
+        const bidRequest = JSON.parse(bidRequestString.data);
+
+        var bidResponse = {
+          requestId: bidRequest.bidId,
+          cpm: response.cpm,
+          width: response.width,
+          height: response.height,
+          creativeId: response.creativeId,
+          dealId: response.dealId,
+          currency: response.currency,
+          netRevenue: response.isNetCpm,
+          ttl: response.ttl
+        };
+
+        if (bidRequest.isVideo) {
+          bidResponse.mediaType = VIDEO;
+          bidResponse.vastUrl = response.adUrl;
+          bidResponse.vastXml = response.ad;
+        } else {
+          bidResponse.adUrl = response.adUrl;
+          bidResponse.ad = response.ad;
+        }
+
+        bidResponses.push(bidResponse);
+      }
+    } catch (error) {
+      utils.logError('Error while parsing smart server response', error);
+    }
+    return bidResponses;
+  },
+  /**
+   * User syncs.
+   *
+   * @param {*} syncOptions Publisher prebid configuration.
+   * @param {*} serverResponses A successful response from the server.
+   * @return {Syncs[]} An array of syncs that should be executed.
+   */
+  getUserSyncs: function (syncOptions, serverResponses) {
+    const syncs = []
+    if (syncOptions.iframeEnabled && serverResponses.length > 0) {
+      syncs.push({
+        type: 'iframe',
+        url: serverResponses[0].body.cSyncUrl
+      });
+    }
+    return syncs;
+  }
+}
+registerBidder(spec);
diff --git a/modules/smartadserverBidAdapter.md b/modules/smartadserverBidAdapter.md
index c1fc0d819c5..84fe5ff8afc 100644
--- a/modules/smartadserverBidAdapter.md
+++ b/modules/smartadserverBidAdapter.md
@@ -20,12 +20,16 @@ Please reach out to your Technical account manager for more information.
     var adUnits = [
         {
             code: 'test-div',
-            sizes: [[300, 250]],  // a display size
+            mediaTypes: {
+                banner: {
+                    sizes: [[300, 250]]
+                }
+            },
             bids: [
                 {
                     bidder: "smart",
                     params: {
-                        domain: 'http://ww251.smartadserver.com',
+                        domain: 'https://ww251.smartadserver.com',
                         siteId: 207435,
                         pageId: 896536,
                         formatId: 62913,
@@ -42,12 +46,16 @@ Please reach out to your Technical account manager for more information.
     var adUnits = [
         {
             code: 'test-div',
-            sizes: [[300, 250]],  // a display size
+            mediaTypes: {
+                banner: {
+                    sizes: [[300, 250]]
+                }
+            },
             bids: [
                 {
                     bidder: "smart",
                     params: {
-                        domain: 'http://ww251.smartadserver.com',
+                        domain: 'https://ww251.smartadserver.com',
                         siteId: 207435,
                         pageId: 896536,
                         formatId: 65906,
@@ -74,7 +82,7 @@ Please reach out to your Technical account manager for more information.
         bids: [{
             bidder: "smart",
             params: {
-                domain: 'http://ww251.smartadserver.com',
+                domain: 'https://ww251.smartadserver.com',
                 siteId: 326147,
                 pageId: 1153895,
                 formatId: 55710
diff --git a/test/spec/modules/smartadserverBidAdapter_spec.js b/test/spec/modules/smartadserverBidAdapter_spec.js
new file mode 100644
index 00000000000..caa806f9ccc
--- /dev/null
+++ b/test/spec/modules/smartadserverBidAdapter_spec.js
@@ -0,0 +1,407 @@
+import {
+  expect
+} from 'chai';
+import {
+  spec
+} from 'modules/smartadserverBidAdapter';
+import {
+  newBidder
+} from 'src/adapters/bidderFactory';
+import {
+  config
+} from 'src/config';
+import * as utils from 'src/utils';
+import { requestBidsHook } from 'modules/consentManagement';
+
+// Default params with optional ones
+describe('Smart bid adapter tests', function () {
+  var DEFAULT_PARAMS = [{
+    adUnitCode: 'sas_42',
+    bidId: 'abcd1234',
+    mediaTypes: {
+      banner: {
+        sizes: [
+          [300, 250],
+          [300, 200]
+        ]
+      }
+    },
+    bidder: 'smartadserver',
+    params: {
+      domain: 'https://prg.smartadserver.com',
+      siteId: '1234',
+      pageId: '5678',
+      formatId: '90',
+      target: 'test=prebid',
+      bidfloor: 0.420,
+      buId: '7569',
+      appName: 'Mozilla',
+      ckId: 42
+    },
+    requestId: 'efgh5678',
+    transactionId: 'zsfgzzg'
+  }];
+
+    // Default params without optional ones
+  var DEFAULT_PARAMS_WO_OPTIONAL = [{
+    adUnitCode: 'sas_42',
+    bidId: 'abcd1234',
+    mediaTypes: {
+      banner: {
+        sizes: [
+          [300, 250],
+          [300, 200]
+        ],
+      }
+    },
+
+    bidder: 'smartadserver',
+    params: {
+      domain: 'https://prg.smartadserver.com',
+      siteId: '1234',
+      pageId: '5678',
+      formatId: '90'
+    },
+    requestId: 'efgh5678'
+  }];
+
+  var BID_RESPONSE = {
+    body: {
+      cpm: 12,
+      width: 300,
+      height: 250,
+      creativeId: 'zioeufg',
+      currency: 'GBP',
+      isNetCpm: true,
+      ttl: 300,
+      adUrl: 'http://awesome.fake.url',
+      ad: '< --- awesome script --- >',
+      cSyncUrl: 'http://awesome.fake.csync.url'
+    }
+  };
+
+  it('Verify build request', function () {
+    config.setConfig({
+      'currency': {
+        'adServerCurrency': 'EUR'
+      }
+    });
+    const request = spec.buildRequests(DEFAULT_PARAMS);
+    expect(request[0]).to.have.property('url').and.to.equal('https://prg.smartadserver.com/prebid/v1');
+    expect(request[0]).to.have.property('method').and.to.equal('POST');
+    const requestContent = JSON.parse(request[0].data);
+
+    expect(requestContent).to.have.property('siteid').and.to.equal('1234');
+    expect(requestContent).to.have.property('pageid').and.to.equal('5678');
+    expect(requestContent).to.have.property('formatid').and.to.equal('90');
+    expect(requestContent).to.have.property('currencyCode').and.to.equal('EUR');
+    expect(requestContent).to.have.property('bidfloor').and.to.equal(0.42);
+    expect(requestContent).to.have.property('targeting').and.to.equal('test=prebid');
+    expect(requestContent).to.have.property('tagId').and.to.equal('sas_42');
+    expect(requestContent).to.have.property('sizes');
+    expect(requestContent.sizes[0]).to.have.property('w').and.to.equal(300);
+    expect(requestContent.sizes[0]).to.have.property('h').and.to.equal(250);
+    expect(requestContent.sizes[1]).to.have.property('w').and.to.equal(300);
+    expect(requestContent.sizes[1]).to.have.property('h').and.to.equal(200);
+    expect(requestContent).to.not.have.property('pageDomain');
+    expect(requestContent).to.have.property('transactionId').and.to.not.equal(null).and.to.not.be.undefined;
+    expect(requestContent).to.have.property('buid').and.to.equal('7569');
+    expect(requestContent).to.have.property('appname').and.to.equal('Mozilla');
+    expect(requestContent).to.have.property('ckid').and.to.equal(42);
+  });
+
+  it('Verify parse response', function () {
+    const request = spec.buildRequests(DEFAULT_PARAMS);
+    const bids = spec.interpretResponse(BID_RESPONSE, request[0]);
+    expect(bids).to.have.lengthOf(1);
+    const bid = bids[0];
+    expect(bid.cpm).to.equal(12);
+    expect(bid.adUrl).to.equal('http://awesome.fake.url');
+    expect(bid.ad).to.equal('< --- awesome script --- >');
+    expect(bid.width).to.equal(300);
+    expect(bid.height).to.equal(250);
+    expect(bid.creativeId).to.equal('zioeufg');
+    expect(bid.currency).to.equal('GBP');
+    expect(bid.netRevenue).to.equal(true);
+    expect(bid.ttl).to.equal(300);
+    expect(bid.requestId).to.equal(DEFAULT_PARAMS[0].bidId);
+
+    expect(function () {
+      spec.interpretResponse(BID_RESPONSE, {
+        data: 'invalid Json'
+      })
+    }).to.not.throw();
+  });
+
+  it('Verifies bidder code', function () {
+    expect(spec.code).to.equal('smartadserver');
+  });
+
+  it('Verifies bidder aliases', function () {
+    expect(spec.aliases).to.have.lengthOf(1);
+    expect(spec.aliases[0]).to.equal('smart');
+  });
+
+  it('Verifies if bid request valid', function () {
+    expect(spec.isBidRequestValid(DEFAULT_PARAMS[0])).to.equal(true);
+    expect(spec.isBidRequestValid(DEFAULT_PARAMS_WO_OPTIONAL[0])).to.equal(true);
+    expect(spec.isBidRequestValid({})).to.equal(false);
+    expect(spec.isBidRequestValid({
+      params: {}
+    })).to.equal(false);
+    expect(spec.isBidRequestValid({
+      params: {
+        pageId: 123
+      }
+    })).to.equal(false);
+    expect(spec.isBidRequestValid({
+      params: {
+        siteId: 123
+      }
+    })).to.equal(false);
+    expect(spec.isBidRequestValid({
+      params: {
+        formatId: 123,
+        pageId: 234
+      }
+    })).to.equal(false);
+    expect(spec.isBidRequestValid({
+      params: {
+        domain: 'www.test.com',
+        pageId: 234
+      }
+    })).to.equal(false);
+    expect(spec.isBidRequestValid({
+      params: {
+        domain: 'www.test.com',
+        formatId: 123,
+        siteId: 456,
+        pageId: 234
+      }
+    })).to.equal(true);
+    expect(spec.isBidRequestValid({
+      params: {
+        domain: 'www.test.com',
+        formatId: 123,
+        siteId: 456,
+        pageId: 234,
+        buId: 789,
+        appName: 'Mozilla'
+      }
+    })).to.equal(true);
+    expect(spec.isBidRequestValid({
+      params: {
+        domain: 'www.test.com',
+        formatId: 123,
+        pageId: 234,
+        buId: 789,
+        appName: 'Mozilla'
+      }
+    })).to.equal(false);
+  });
+
+  it('Verifies user sync', function () {
+    var syncs = spec.getUserSyncs({
+      iframeEnabled: true
+    }, [BID_RESPONSE]);
+    expect(syncs).to.have.lengthOf(1);
+    expect(syncs[0].type).to.equal('iframe');
+    expect(syncs[0].url).to.equal('http://awesome.fake.csync.url');
+
+    syncs = spec.getUserSyncs({
+      iframeEnabled: false
+    }, [BID_RESPONSE]);
+    expect(syncs).to.have.lengthOf(0);
+
+    syncs = spec.getUserSyncs({
+      iframeEnabled: true
+    }, []);
+    expect(syncs).to.have.lengthOf(0);
+  });
+
+  describe('gdpr tests', function () {
+    afterEach(function () {
+      config.resetConfig();
+      $$PREBID_GLOBAL$$.requestBids.removeAll();
+    });
+
+    it('Verify build request with GDPR', function () {
+      config.setConfig({
+        'currency': {
+          'adServerCurrency': 'EUR'
+        },
+        consentManagement: {
+          cmp: 'iab',
+          consentRequired: true,
+          timeout: 1000,
+          allowAuctionWithoutConsent: true
+        }
+      });
+      const request = spec.buildRequests(DEFAULT_PARAMS_WO_OPTIONAL, {
+        gdprConsent: {
+          consentString: 'BOKAVy4OKAVy4ABAB8AAAAAZ+A==',
+          gdprApplies: true
+        }
+      });
+      const requestContent = JSON.parse(request[0].data);
+      expect(requestContent).to.have.property('gdpr').and.to.equal(true);
+      expect(requestContent).to.have.property('gdpr_consent').and.to.equal('BOKAVy4OKAVy4ABAB8AAAAAZ+A==');
+    });
+
+    it('Verify build request with GDPR without gdprApplies', function () {
+      config.setConfig({
+        'currency': {
+          'adServerCurrency': 'EUR'
+        },
+        consentManagement: {
+          cmp: 'iab',
+          consentRequired: true,
+          timeout: 1000,
+          allowAuctionWithoutConsent: true
+        }
+      });
+      const request = spec.buildRequests(DEFAULT_PARAMS_WO_OPTIONAL, {
+        gdprConsent: {
+          consentString: 'BOKAVy4OKAVy4ABAB8AAAAAZ+A=='
+        }
+      });
+      const requestContent = JSON.parse(request[0].data);
+      expect(requestContent).to.not.have.property('gdpr');
+      expect(requestContent).to.have.property('gdpr_consent').and.to.equal('BOKAVy4OKAVy4ABAB8AAAAAZ+A==');
+    });
+  });
+
+  describe('Instream video tests', function () {
+    afterEach(function () {
+      config.resetConfig();
+      $$PREBID_GLOBAL$$.requestBids.removeAll();
+    });
+
+    const INSTREAM_DEFAULT_PARAMS = [{
+      adUnitCode: 'sas_42',
+      bidId: 'abcd1234',
+      bidder: 'smartadserver',
+      mediaTypes: {
+        video: {
+          context: 'instream',
+          playerSize: [[640, 480]] // It seems prebid.js transforms the player size array into an array of array...
+        }
+      },
+      params: {
+        siteId: '1234',
+        pageId: '5678',
+        formatId: '90',
+        target: 'test=prebid',
+        bidfloor: 0.420,
+        buId: '7569',
+        appName: 'Mozilla',
+        ckId: 42,
+        video: {
+          protocol: 6
+        }
+      },
+      requestId: 'efgh5678',
+      transactionId: 'zsfgzzg'
+    }];
+
+    var INSTREAM_BID_RESPONSE = {
+      body: {
+        cpm: 12,
+        width: 640,
+        height: 480,
+        creativeId: 'zioeufg',
+        currency: 'GBP',
+        isNetCpm: true,
+        ttl: 300,
+        adUrl: 'http://awesome.fake-vast.url',
+        ad: '<VAST version="4.0"></VAST>',
+        cSyncUrl: 'http://awesome.fake.csync.url'
+      }
+    };
+
+    it('Verify instream video build request', function () {
+      config.setConfig({
+        'currency': {
+          'adServerCurrency': 'EUR'
+        }
+      });
+      const request = spec.buildRequests(INSTREAM_DEFAULT_PARAMS);
+      expect(request[0]).to.have.property('url').and.to.equal('https://prg.smartadserver.com/prebid/v1');
+      expect(request[0]).to.have.property('method').and.to.equal('POST');
+      const requestContent = JSON.parse(request[0].data);
+      expect(requestContent).to.have.property('siteid').and.to.equal('1234');
+      expect(requestContent).to.have.property('pageid').and.to.equal('5678');
+      expect(requestContent).to.have.property('formatid').and.to.equal('90');
+      expect(requestContent).to.have.property('currencyCode').and.to.equal('EUR');
+      expect(requestContent).to.have.property('bidfloor').and.to.equal(0.42);
+      expect(requestContent).to.have.property('targeting').and.to.equal('test=prebid');
+      expect(requestContent).to.have.property('tagId').and.to.equal('sas_42');
+      expect(requestContent).to.not.have.property('pageDomain');
+      expect(requestContent).to.have.property('transactionId').and.to.not.equal(null).and.to.not.be.undefined;
+      expect(requestContent).to.have.property('buid').and.to.equal('7569');
+      expect(requestContent).to.have.property('appname').and.to.equal('Mozilla');
+      expect(requestContent).to.have.property('ckid').and.to.equal(42);
+      expect(requestContent).to.have.property('isVideo').and.to.equal(true);
+      expect(requestContent).to.have.property('videoData');
+      expect(requestContent.videoData).to.have.property('videoProtocol').and.to.equal(6);
+      expect(requestContent.videoData).to.have.property('playerWidth').and.to.equal(640);
+      expect(requestContent.videoData).to.have.property('playerHeight').and.to.equal(480);
+    });
+
+    it('Verify instream parse response', function () {
+      const request = spec.buildRequests(INSTREAM_DEFAULT_PARAMS);
+      const bids = spec.interpretResponse(INSTREAM_BID_RESPONSE, request[0]);
+      expect(bids).to.have.lengthOf(1);
+      const bid = bids[0];
+      expect(bid.cpm).to.equal(12);
+      expect(bid.mediaType).to.equal('video');
+      expect(bid.vastUrl).to.equal('http://awesome.fake-vast.url');
+      expect(bid.vastXml).to.equal('<VAST version="4.0"></VAST>');
+      expect(bid.width).to.equal(640);
+      expect(bid.height).to.equal(480);
+      expect(bid.creativeId).to.equal('zioeufg');
+      expect(bid.currency).to.equal('GBP');
+      expect(bid.netRevenue).to.equal(true);
+      expect(bid.ttl).to.equal(300);
+      expect(bid.requestId).to.equal(INSTREAM_DEFAULT_PARAMS[0].bidId);
+
+      expect(function () {
+        spec.interpretResponse(INSTREAM_BID_RESPONSE, {
+          data: 'invalid Json'
+        })
+      }).to.not.throw();
+    });
+
+    it('Verify not handled media type return empty request', function () {
+      config.setConfig({
+        'currency': {
+          'adServerCurrency': 'EUR'
+        }
+      });
+      const request = spec.buildRequests([{
+        adUnitCode: 'sas_42',
+        bidder: 'smartadserver',
+        mediaTypes: {
+          video: {
+            context: 'badcontext'
+          }
+        },
+        params: {
+          domain: 'https://prg.smartadserver.com',
+          siteId: '1234',
+          pageId: '5678',
+          formatId: '90',
+          target: 'test=prebid',
+          bidfloor: 0.420,
+          buId: '7569',
+          appName: 'Mozilla',
+          ckId: 42
+        },
+        requestId: 'efgh5678',
+        transactionId: 'zsfgzzg'
+      }, INSTREAM_DEFAULT_PARAMS[0]]);
+      expect(request[0]).to.be.empty;
+      expect(request[1]).to.not.be.empty;
+    });
+  });
+});