PubMatic Bid Adapter : passing property connectiontype in device object

modules/pubmaticBidAdapter.js

@@ -263,6 +263,25 @@ function _handleCustomParams(params, conf) {
   return conf;
 }
 
+export function getDeviceConnectionType() {
+  let connection = window.navigator && (window.navigator.connection || window.navigator.mozConnection || window.navigator.webkitConnection);
+  switch (connection?.effectiveType) {
+    case 'ethernet':
+      return 1;
+    case 'wifi':
+      return 2;
+    case 'slow-2g':
+    case '2g':
+      return 4;
+    case '3g':
+      return 5;
+    case '4g':
+      return 6;
+    default:
+      return 0;
+  }
+}
+
 function _createOrtbTemplate(conf) {
   return {
     id: '' + new Date().getTime(),
@@ -280,7 +299,8 @@ function _createOrtbTemplate(conf) {
       dnt: (navigator.doNotTrack == 'yes' || navigator.doNotTrack == '1' || navigator.msDoNotTrack == '1') ? 1 : 0,
       h: screen.height,
       w: screen.width,
-      language: navigator.language
+      language: navigator.language,
+      connectiontype: getDeviceConnectionType()
     },
     user: {},
     ext: {}

test/spec/modules/pubmaticBidAdapter_spec.js

@@ -1,5 +1,5 @@
 import { expect } from 'chai';
-import { spec, checkVideoPlacement, _getDomainFromURL, assignDealTier, prepareMetaObject } from 'modules/pubmaticBidAdapter.js';
+import { spec, checkVideoPlacement, _getDomainFromURL, assignDealTier, prepareMetaObject, getDeviceConnectionType } from 'modules/pubmaticBidAdapter.js';
 import * as utils from 'src/utils.js';
 import { config } from 'src/config.js';
 import { createEidsArray } from 'modules/userId/eids.js';
@@ -2964,6 +2964,14 @@ describe('PubMatic adapter', function () {
           expect(data.imp[0].ext.ae).to.equal(1);
         });
       });
+
+      it('should send connectiontype parameter if browser contains navigator.connection property', function () {
+        const bidRequest = spec.buildRequests(bidRequests);
+        let data = JSON.parse(bidRequest.data);
+        if (window.navigator && window.navigator.connection) {
+          expect(data.device).to.include.any.keys('connectiontype');
+        }
+      });
   	});
 
     it('Request params dctr check', function () {
@@ -4020,6 +4028,21 @@ describe('PubMatic adapter', function () {
       });
     });
 
+    describe('getDeviceConnectionType', function() {
+      it('is a function', function(done) {
+        getDeviceConnectionType.should.be.a('function');
+        done();
+      });
+
+      it('should return matched value if navigator.connection is present', function(done) {
+        const connectionValue = getDeviceConnectionType();
+        if (window?.navigator?.connection) {
+          expect(connectionValue).to.be.a('number');
+        }
+        done();
+      });
+    });
+
     if (FEATURES.VIDEO) {
       describe('Checking for Video.Placement property', function() {
         let sandbox, utilsMock;