Set integration type to pbs

Author: mbonnafon

src/main/java/org/prebid/server/proto/openrtb/ext/request/mobkoi/ExtImpMobkoi.java

@@ -3,12 +3,19 @@
 import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Value;
 
-@Value(staticConstructor = "of")
+@Value
 public class ExtImpMobkoi {
 
     @JsonProperty("placementId")
     String placementId;
 
     @JsonProperty("adServerBaseUrl")
     String adServerBaseUrl;
+
+    @JsonProperty("integrationType")
+    String integrationType = "pbs";
+
+    public static ExtImpMobkoi of(String placementId, String adServerBaseUrl) {
+        return new ExtImpMobkoi(placementId, adServerBaseUrl);
+    }
 }

src/test/java/org/prebid/server/bidder/mobkoi/MobkoiBidderTest.java

@@ -137,6 +137,26 @@ public void makeHttpRequestsShouldUseCustomEndpointWhenDefinedInMobkoiExtension(
         assertThat(result.getErrors()).isEmpty();
     }
 
+    @Test
+    public void makeHttpRequestsShouldAlwaysSetIntegrationTypeToPbsInMobkoiExtension() {
+        // given
+        final ObjectNode mobkoiExt = impExt("pid", null);
+        final BidRequest bidRequest = givenBidRequest(impBuilder -> impBuilder.ext(mobkoiExt));
+
+        // when
+        final Result<List<HttpRequest<BidRequest>>> result = target.makeHttpRequests(bidRequest);
+
+        // then
+        assertThat(result.getValue())
+                .extracting(httpRequest -> mapper.readValue(httpRequest.getBody(), BidRequest.class))
+                .flatExtracting(BidRequest::getImp)
+                .extracting(imp -> imp.getExt())
+                .extracting(ext -> ext.get("bidder"))
+                .extracting(bidder -> bidder.get("integrationType").asText())
+                .containsExactly("pbs");
+        assertThat(result.getErrors()).isEmpty();
+    }
+
     @Test
     public void makeHttpRequestsShouldOverrideUserExtAndSetConsent() {
         // given