Pubmatic: setting seat-id and dspid in bid object

modules/pubmaticBidAdapter.js

@@ -990,7 +990,9 @@ export const spec = {
                 netRevenue: NET_REVENUE,
                 ttl: 300,
                 referrer: parsedReferrer,
-                ad: bid.adm
+                ad: bid.adm,
+                pm_seat: seatbidder.seat || null,
+                pm_dspid: bid.ext && bid.ext.dspid ? bid.ext.dspid : null
               };
               if (parsedRequest.imp && parsedRequest.imp.length > 0) {
                 parsedRequest.imp.forEach(req => {

test/spec/modules/pubmaticBidAdapter_spec.js

@@ -533,6 +533,7 @@ describe('PubMatic adapter', function () {
       'body': {
         'id': '93D3BAD6-E2E2-49FB-9D89-920B1761C865',
         'seatbid': [{
+          'seat': 'seat-id',
           'bid': [{
             'id': '74858439-49D7-4169-BA5D-44A046315B2F',
             'impid': '22bddb28db77d',
@@ -2561,6 +2562,8 @@ describe('PubMatic adapter', function () {
         expect(response[0].meta.clickUrl).to.equal('blackrock.com');
         expect(response[0].referrer).to.include(data.site.ref);
         expect(response[0].ad).to.equal(bidResponses.body.seatbid[0].bid[0].adm);
+        expect(response[0].pm_seat).to.equal(bidResponses.body.seatbid[0].seat);
+        expect(response[0].pm_dspid).to.equal(bidResponses.body.seatbid[0].bid[0].ext.dspid);
 
         expect(response[1].requestId).to.equal(bidResponses.body.seatbid[1].bid[0].impid);
         expect(response[1].cpm).to.equal((bidResponses.body.seatbid[1].bid[0].price).toFixed(2));
@@ -2580,6 +2583,8 @@ describe('PubMatic adapter', function () {
         expect(response[1].meta.clickUrl).to.equal('hivehome.com');
         expect(response[1].referrer).to.include(data.site.ref);
         expect(response[1].ad).to.equal(bidResponses.body.seatbid[1].bid[0].adm);
+        expect(response[1].pm_seat).to.equal(bidResponses.body.seatbid[1].seat || null);
+        expect(response[1].pm_dspid).to.equal(bidResponses.body.seatbid[1].bid[0].ext.dspid);
       });
 
       it('should check for dealChannel value selection', function () {