Mobkoi Adapter: set integration_type field in bid requests

src/main/java/org/prebid/server/bidder/mobkoi/MobkoiBidder.java

@@ -18,9 +18,11 @@
 import org.prebid.server.json.DecodeException;
 import org.prebid.server.json.JacksonMapper;
 import org.prebid.server.proto.openrtb.ext.ExtPrebid;
+import org.prebid.server.proto.openrtb.ext.request.ExtRequest;
 import org.prebid.server.proto.openrtb.ext.request.ExtUser;
 import org.prebid.server.proto.openrtb.ext.request.mobkoi.ExtImpMobkoi;
 import org.prebid.server.proto.openrtb.ext.response.BidType;
+import org.prebid.server.bidder.mobkoi.proto.MobkoiBidRequestExt;
 import org.prebid.server.util.BidderUtil;
 import org.prebid.server.util.HttpUtil;
 
@@ -39,6 +41,9 @@ public class MobkoiBidder implements Bidder<BidRequest> {
             new TypeReference<>() {
             };
 
+    /**
+     * The integration endpoint that will be used to send the bid requests to. Managed by the adapter configuration.
+     */
     private final String endpointUrl;
     private final JacksonMapper mapper;
 
@@ -60,7 +65,7 @@ public Result<List<HttpRequest<BidRequest>>> makeHttpRequests(BidRequest bidRequ
             return Result.withError(BidderError.badInput(e.getMessage()));
         }
 
-        final String selectedEndpointUrl = resolveEndpoint(extImpMobkoi.getAdServerBaseUrl());
+        final String selectedEndpointUrl = resolveEndpoint(extImpMobkoi.getIntegrationEndpoint());
 
         return Result.withValue(BidderUtil.defaultRequest(
                 modifyBidRequest(bidRequest, modifiedFirstImp),
@@ -104,10 +109,16 @@ private String resolveEndpoint(String customUri) {
         }
     }
 
-    private static BidRequest modifyBidRequest(BidRequest bidRequest, Imp modifiedFirstImp) {
+    private BidRequest modifyBidRequest(BidRequest bidRequest, Imp modifiedFirstImp) {
         final User user = modifyUser(bidRequest.getUser());
         final List<Imp> imps = updateFirstImpWith(bidRequest.getImp(), modifiedFirstImp);
-        return bidRequest.toBuilder().user(user).imp(imps).build();
+        final ExtRequest requestExt = modifyReqExt(bidRequest.getExt());
+        return bidRequest.toBuilder().user(user).imp(imps).ext(requestExt).build();
+    }
+
+    private ExtRequest modifyReqExt(ExtRequest existingRequestExt) {
+        final ExtRequest target = existingRequestExt != null ? existingRequestExt : ExtRequest.empty();
+        return mapper.fillExtension(target, MobkoiBidRequestExt.of());
     }
 
     private static User modifyUser(User user) {

src/main/java/org/prebid/server/bidder/mobkoi/proto/MobkoiBidRequestExt.java

@@ -0,0 +1,22 @@
+package org.prebid.server.bidder.mobkoi.proto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Value;
+
+@Value(staticConstructor = "of")
+public class MobkoiBidRequestExt {
+
+    @JsonProperty("mobkoi")
+    final Mobkoi mobkoi;
+
+    public static MobkoiBidRequestExt of() {
+        return new MobkoiBidRequestExt(Mobkoi.of());
+    }
+
+    @Value(staticConstructor = "of")
+    public static class Mobkoi {
+
+        @JsonProperty("integration_type")
+        final String integrationType = "pbs";
+    }
+}

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

@@ -9,6 +9,9 @@ public class ExtImpMobkoi {
     @JsonProperty("placementId")
     String placementId;
 
-    @JsonProperty("adServerBaseUrl")
-    String adServerBaseUrl;
+    /**
+     * The integration endpoint that the bid requests will be sent to. For example, https://test.mobkoi.com/bid.
+     */
+    @JsonProperty("integrationEndpoint")
+    String integrationEndpoint;
 }

src/main/resources/static/bidder-params/mobkoi.json

@@ -10,8 +10,8 @@
     },
     "adServerBaseUrl": {
       "type": "string",
-      "description": "Mobkoi's ad server url",
-      "pattern": "^https?://[^.]+\\.mobkoi\\.com$"
+      "description": "Mobkoi's integration endpoint that will be used to send the bid requests to. For example, https://test.mobkoi.com/bid.",
+      "pattern": "^https?://[^.]+\\.mobkoi\\.com(/.*)?$"
     }
   }
 }

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

@@ -160,6 +160,24 @@ public void makeHttpRequestsShouldOverrideUserExtAndSetConsent() {
         assertThat(result.getErrors()).isEmpty();
     }
 
+    @Test
+    public void makeHttpRequestsShouldHasMobkoiExtSet() {
+        // given
+        final BidRequest bidRequest = givenBidRequest(identity());
+
+        // when
+        final Result<List<HttpRequest<BidRequest>>> result = target.makeHttpRequests(bidRequest);
+
+        // then
+        assertThat(result.getValue())
+                .extracting(httpRequest -> mapper.readValue(httpRequest.getBody(), BidRequest.class))
+                .extracting(request -> request.getExt())
+                .extracting(ext -> ext.getProperty("mobkoi"))
+                .extracting(mobkoi -> mobkoi.get("integration_type").asText())
+                .hasSize(1).element(0)
+                .isEqualTo("pbs");
+    }
+
     @Test
     public void makeBidsShouldReturnEmptyListIfBidResponseIsNull() throws JsonProcessingException {
         // given
@@ -238,8 +256,13 @@ private static Imp givenImp(UnaryOperator<Imp.ImpBuilder> impCustomizer) {
         return impCustomizer.apply(Imp.builder().id("imp_id").ext(impExt("placementIdValue", null))).build();
     }
 
-    private static ObjectNode impExt(String placementId, String adServerBaseUrl) {
-        return mapper.valueToTree(ExtPrebid.of(null, ExtImpMobkoi.of(placementId, adServerBaseUrl)));
+    /**
+     * @param placementId The placement id provided by Mobkoi.
+     * @param integrationEndpoint The integration endpoint that will be used to send the bid requests to.
+     * @return The imp ext.
+     */
+    private static ObjectNode impExt(String placementId, String integrationEndpoint) {
+        return mapper.valueToTree(ExtPrebid.of(null, ExtImpMobkoi.of(placementId, integrationEndpoint)));
     }
 
     private static BidResponse givenBidResponse(UnaryOperator<Bid.BidBuilder> bidCustomizer) {