Dependency inject Retrofit client to simplify api declaration15.0.1

- centrally declare AAI rest client [0]
- add integration test to assert http request to AAI
- do not ignore test failure

[0] this has the advantage, that
- headers are defined for all requests via interceptor
- this is the correct setup to add tracing to the app with a later change
- credentials for AAI can be centrally configured (it is now configurable in the latest AAI version)

Issue-ID: USECASEUI-857
Change-Id: I5ef0e859e3bc2ab4b42fe6ed27632c211b90ac62
Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>

8 files changed, 257 insertions, 385 deletions

diff --git a/.gitignore b/.gitignore
index 74ff2419..ca58eaf2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,5 @@ build/
 ### VS Code ###

 .vscode/

 /bin/

+toPath

+server/logs

diff --git a/server/pom.xml b/server/pom.xml
index 65622ff9..bf60ab8d 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -64,6 +64,16 @@
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.wiremock.integrations</groupId>
+            <artifactId>wiremock-spring-boot</artifactId>
+            <version>3.0.3</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
             <exclusions>
                 <exclusion>
@@ -203,13 +213,12 @@
                 </exclusion>
             </exclusions>
         </dependency>
-
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <scope>test</scope>
-            <version>4.13.2</version>
-        </dependency>
+        <!-- TODO: Migrate tests to junit 5 and remove this dependency -->
+		<dependency>
+			<groupId>org.junit.vintage</groupId>
+			<artifactId>junit-vintage-engine</artifactId>
+			<scope>test</scope>
+		</dependency>
         <dependency>
             <groupId>com.sun.activation</groupId>
             <artifactId>jakarta.activation</artifactId>
@@ -350,7 +359,7 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>2.22.2</version>
                 <configuration>
-                    <testFailureIgnore>true</testFailureIgnore>
+                    <testFailureIgnore>false</testFailureIgnore>
                     <includes>
                         <include>**/*Spec*</include>
                         <include>**/Test*.java</include>
diff --git a/server/src/main/java/org/onap/usecaseui/server/config/AAIClientConfig.java b/server/src/main/java/org/onap/usecaseui/server/config/AAIClientConfig.java
new file mode 100644
index 00000000..f27a72e5
--- /dev/null
+++ b/server/src/main/java/org/onap/usecaseui/server/config/AAIClientConfig.java
@@ -0,0 +1,74 @@
+/**
+ * Copyright 2025 Deutsche Telekom.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onap.usecaseui.server.config;
+
+import java.io.IOException;
+
+import org.onap.usecaseui.server.service.lcm.domain.aai.AAIService;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpHeaders;
+
+import okhttp3.Credentials;
+import okhttp3.Interceptor;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import retrofit2.Retrofit;
+import retrofit2.converter.jackson.JacksonConverterFactory;
+
+@Configuration
+public class AAIClientConfig {
+
+    @Value("${client.aai.baseUrl}")
+    String baseUrl;
+    @Value("${client.aai.username}")
+    String username;
+    @Value("${client.aai.password}")
+    String password;
+
+    @Bean
+    OkHttpClient okHttpClient() {
+        return new OkHttpClient().newBuilder().addInterceptor(new Interceptor() {
+            @Override
+            public okhttp3.Response intercept(Chain chain) throws IOException {
+                Request originalRequest = chain.request();
+                Request.Builder builder = originalRequest.newBuilder()
+                    .header("Authorization", Credentials.basic(username, password))
+                    .header(HttpHeaders.ACCEPT, "application/json")
+                    .header("X-TransactionId", "7777")
+                    .header("X-FromAppId", "uui");
+                Request newRequest = builder.build();
+                return chain.proceed(newRequest);
+            }
+        }).build();
+    }
+
+    @Bean
+    Retrofit retrofit(OkHttpClient okHttpClient) {
+        return new Retrofit.Builder()
+            .baseUrl(baseUrl)
+            .addConverterFactory(JacksonConverterFactory.create())
+            .client(okHttpClient)
+            .build();
+    }
+
+    @Bean
+    AAIService aaiService(Retrofit retrofit) {
+        return retrofit.create(AAIService.class);
+    }
+}
diff --git a/server/src/main/java/org/onap/usecaseui/server/conf/intent/IntentScheduleTask.java b/server/src/main/java/org/onap/usecaseui/server/config/intent/IntentScheduleTask.java
index e727d1cc..79089cbf 100644
--- a/server/src/main/java/org/onap/usecaseui/server/conf/intent/IntentScheduleTask.java
+++ b/server/src/main/java/org/onap/usecaseui/server/config/intent/IntentScheduleTask.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.onap.usecaseui.server.conf.intent;
+package org.onap.usecaseui.server.config.intent;
 
 import org.onap.usecaseui.server.service.intent.IntentInstanceService;
 import org.springframework.context.annotation.Configuration;
diff --git a/server/src/main/java/org/onap/usecaseui/server/service/lcm/domain/aai/AAIService.java b/server/src/main/java/org/onap/usecaseui/server/service/lcm/domain/aai/AAIService.java
index d6c53ef4..f9f55405 100644
--- a/server/src/main/java/org/onap/usecaseui/server/service/lcm/domain/aai/AAIService.java
+++ b/server/src/main/java/org/onap/usecaseui/server/service/lcm/domain/aai/AAIService.java
@@ -33,453 +33,159 @@ import retrofit2.Call;
 import retrofit2.http.Body;
 import retrofit2.http.DELETE;
 import retrofit2.http.GET;
-import retrofit2.http.Headers;
 import retrofit2.http.PUT;
 import retrofit2.http.Path;
 import retrofit2.http.Query;
 
 public interface AAIService {
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
+
 //    @GET("/api/aai-business/v11/customers")
     @GET("/api/aai-business/v13/customers")
     Call<AAICustomerRsp> listCustomer();
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-	})
+
 	@GET("/api/aai-externalSystem/v16/esr-nfvo-list")
 	Call<AAIOrchestratorRsp> listOrchestrator();
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-	})
+
 	@GET("/api/aai-externalSystem/v16/esr-nfvo-list/esr-nfvo/{nfvo-id}?depth=all")
 	Call<AAISingleOrchestratorRsp> getOrchestrator(@Path("nfvo-id") String nfvoId);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @PUT("/api/aai-business/v13/customers/customer/{global-customer-id}")
     Call<ResponseBody> createOrUpdateCustomer(@Path("global-customer-id") String customerId,@Body RequestBody body);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @DELETE("/api/aai-business/v13//customers/customer/{global-customer-id}")
     Call<ResponseBody> deleteCustomer(@Path("global-customer-id") String customerId,@Query("resource-version") String resourceVersion);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @GET("/api/aai-business/v13//customers/customer/{global-customer-id}")
     Call<AAICustomer> getCustomerById(@Path("global-customer-id") String customerId);
-    
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
+
 //    @GET("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}/service-instances")
     @GET("/api/aai-business/v16/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}/service-instances")
     Call<ResponseBody> listServiceInstances(@Path("global-customer-id") String customerId, @Path("service-type") String serviceType);
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
 //    @GET("/cloud-infrastructure/cloud-regions")
     @GET("/api/aai-cloudInfrastructure/v11/cloud-regions")
     Call<VimInfoRsp> listVimInfo();
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
 //    @GET("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions")
     @GET("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions")
     Call<ServiceSubscriptionRsp> listServiceSubscriptions(@Path("global-customer-id") String customerId);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-	})
+
 	//@GET("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions")
 	@PUT("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}")
 	Call<ResponseBody> createOrUpdateServiceType(@Path("global-customer-id") String customerId,@Path("service-type") String serviceType,@Body RequestBody body);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-	})
+
 	//@GET("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions")
 	@DELETE("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}")
 	Call<ResponseBody> deleteServiceType(@Path("global-customer-id") String customerId,@Path("service-type") String serviceType,@Query("resource-version") String resourceVersion);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-	})
+
 	//@GET("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions")
 	@GET("/api/aai-business/v11/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}")
 	Call<AAIServiceSubscription> getServiceTypeById(@Path("global-customer-id") String customerId,@Path("service-type") String serviceType);
-    
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
+
     @GET("/api/aai-externalSystem/v11/esr-thirdparty-sdnc-list")
     Call<SDNCControllerRsp> listSdncControllers();
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-	})
+
 	@GET("/api/aai-business/v11/customers/customer/{customerId}/service-subscriptions/service-subscription/{service-type}/service-instances/service-instance/{serviceId}")
 	Call<ResponseBody> getAAIServiceInstance(@Path("customerId") String customerId,@Path("service-type") String seviceType,@Path("serviceId") String serviceId);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
 	@GET("/api/aai-network/v14/network-resources")
 	Call<ResponseBody> listNetWorkResources();
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
 	@GET("/api/aai-network/v14/pnfs/pnf/{pnfName}/p-interfaces")
 	Call<PinterfaceRsp> getPinterfaceByPnfName(@Path("pnfName") String pnfName);
-    
-    @Headers({
-            "X-TransactionId: 9999",
-            "X-FromAppId: MSO",
-            "Authorization: Basic SW5mcmFQb3J0YWxDbGllbnQ6cGFzc3dvcmQxJA==",
-            "Accept: application/json"
-    })
+
 	@GET("/aai/v24/network/logical-links")
 	Call<ResponseBody> getLogicalLinks();
-    
-    @Headers({
-    	"X-TransactionId: 7777",
-    	"X-FromAppId: uui",
-    	"Authorization: Basic QUFJOkFBSQ==",
-    	"Accept: application/json"
-    })
+
     @GET("/api/aai-network/v14/logical-links/logical-link/{link-name}")
     Call<ResponseBody> getSpecificLogicalLink(@Path("link-name") String linkName);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @PUT("/api/aai-network/v14/network-resources/network-resource/{networkId}")
     Call<ResponseBody> createTopoNetwork(@Body RequestBody body,@Path("networkId") String networkId);
-    
-    @Headers({
-    	"X-TransactionId: 7777",
-    	"X-FromAppId: uui",
-    	"Authorization: Basic QUFJOkFBSQ==",
-    	"Accept: application/json"
-    })
+
     @PUT("/api/aai-network/v14/ext-aai-networks/ext-aai-network/{aai-id}")
     Call<ResponseBody> createHostUrl(@Body RequestBody body,@Path("aai-id") String aaiId);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
 	@GET("/api/aai-network/v14/ext-aai-networks/ext-aai-network/{aai-id}")
 	Call<ResponseBody> getExtAaiId(@Path("aai-id") String aaiId);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
 	@GET("/api/aai-network/v14/ext-aai-networks/ext-aai-network/{aai-id}/esr-system-info")
 	Call<ResponseBody> getHostUrl(@Path("aai-id") String aaiId);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @PUT("/api/aai-network/v14/pnfs/pnf/{pnfName}/p-interfaces/p-interface/{tp-id}")
     Call<ResponseBody> createTerminationPoint(@Body RequestBody body,@Path("pnfName") String pnfName,@Path("tp-id") String tpId);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @PUT("/api/aai-network/v14/pnfs/pnf/{pnfname}")
     Call<ResponseBody> createPnf(@Body RequestBody body,@Path("pnfname") String pnfname);
-    
-    @Headers({
-    	"X-TransactionId: 7777",
-    	"X-FromAppId: uui",
-    	"Authorization: Basic QUFJOkFBSQ==",
-    	"Accept: application/json"
-    })
+
     @PUT("/api/aai-network/v14/logical-links/logical-link/{linkName}")
     Call<ResponseBody> createLink(@Body RequestBody body,@Path("linkName") String linkName);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @DELETE("/api/aai-network/v14/logical-links/logical-link/{linkName}")
     Call<ResponseBody> deleteLink(@Path("linkName") String linkName,@Query("resource-version") String resourceVersion);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @GET("/api/aai-business/v14/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}/service-instances")
     Call<ResponseBody> getServiceInstances(@Path("global-customer-id") String customerId,@Path("service-type") String serviceType);
-    
-    @Headers({
-        "X-TransactionId: 7777",
-        "X-FromAppId: uui",
-        "Authorization: Basic QUFJOkFBSQ==",
-        "Accept: application/json"
-    })
+
     @GET("/api/aai-business/v14/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}/service-instances")
     Call<ResponseBody> serviceInstaneInfo(@Path("global-customer-id") String globalCustomerId,@Path("service-type") String serviceType,@Query("service-instance-id") String serviceInstanceId);
-    
-    @Headers({
-    	"X-TransactionId: 7777",
-    	"X-FromAppId: uui",
-    	"Authorization: Basic QUFJOkFBSQ==",
-    	"Accept: application/json"
-    })
+
     @GET("/api/aai-business/v14/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}/service-instances/service-instance/{service-instance-id}/allotted-resources")
     Call<ResponseBody> getAllottedResources(@Path("global-customer-id") String globalCustomerId,@Path("service-type") String serviceType,@Path("service-instance-id") String serviceInstanceId);
-    
-    @Headers({
-            "X-TransactionId: 9999",
-            "X-FromAppId: MSO",
-            "Authorization: Basic SW5mcmFQb3J0YWxDbGllbnQ6cGFzc3dvcmQxJA==",
-            "Accept: application/json"
-    })
+
     @GET("/aai/v24/network/pnfs")
     Call<ResponseBody> getPnfInfo(@Query("pnfName") String pnfName);
-    
-    @Headers({
-            "X-TransactionId: 9999",
-            "X-FromAppId: MSO",
-            "Authorization: Basic SW5mcmFQb3J0YWxDbGllbnQ6cGFzc3dvcmQxJA==",
-            "Accept: application/json"
-    })
+
     @GET("/aai/v24/network/connectivities")
     Call<ResponseBody> getConnectivityInfo(@Query("connectivity-id") String connectivityId);
 
-    @Headers({
-            "X-TransactionId: 9999",
-            "X-FromAppId: MSO",
-            "Authorization: Basic SW5mcmFQb3J0YWxDbGllbnQ6cGFzc3dvcmQxJA==",
-            "Accept: application/json"
-    })
     @GET("/aai/v24/network/vpn-bindings")
     Call<ResponseBody> getVpnBindingInfo(@Query("vpn-id") String vpnId);
 
-    @Headers({
-            "X-TransactionId: 9999",
-            "X-FromAppId: MSO",
-            "Authorization: Basic SW5mcmFQb3J0YWxDbGllbnQ6cGFzc3dvcmQxJA==",
-            "Accept: application/json"
-    })
     @GET("/aai/v24/network/network-routes")
     Call<ResponseBody> getNetworkRouteInfo(@Query("route-id") String routeId);
 
-    @Headers({
-            "X-TransactionId: 9999",
-            "X-FromAppId: MSO",
-            "Authorization: Basic SW5mcmFQb3J0YWxDbGllbnQ6cGFzc3dvcmQxJA==",
-            "Accept: application/json"
-    })
     @GET("/aai/v24/network/unis")
     Call<ResponseBody> getUniInfo(@Query("uni-id") String uniId);
 
-    @Headers({
-    	"X-TransactionId: 7777",
-    	"X-FromAppId: uui",
-    	"Authorization: Basic QUFJOkFBSQ==",
-    	"Accept: application/json"
-    })
     @GET("/api/aai-network/v14/vpn-bindings")
     Call<ResponseBody> getPinterfaceByVpnId(@Query("vpn-id") String vpnId);
-    
-    @Headers({
-    	"X-TransactionId: 7777",
-    	"X-FromAppId: uui",
-    	"Authorization: Basic QUFJOkFBSQ==",
-    	"Accept: application/json"
-    })
+
     @DELETE("/api/aai-network/v14/ext-aai-networks/ext-aai-network/{aai-id}")
     Call<ResponseBody> deleteExtNetwork(@Path("aai-id") String aaiId,@Query("resource-version") String resourceVersion);
 
-    
-    @Headers({
-    	"X-TransactionId: 7777",
-    	"X-FromAppId: uui",
-    	"Authorization: Basic QUFJOkFBSQ==",
-    	"Accept: application/json"
-    })
     @PUT("/api/aai-query/v19?format=resource")
     Call<ResponseBody> querynNetworkResourceList(@Body RequestBody body);
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
+
     @GET("/api/aai-business/v14/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}/service-instances/service-instance/{service-instance-id}")
     Call<ResponseBody> getServiceInstancesForEdge(@Path("global-customer-id") String globalCustomerId,@Path("service-type") String serviceType,
                                                   @Path("service-instance-id") String serviceinstanceid);
-
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
     @GET("/api/aai-network/v14/connectivities/connectivity")
     Call<ResponseBody> getConnectivityInformation(@Query("connectivity-id") String connectivityId);
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
     @GET("/api/aai-network/v14/pnfs/pnf/{pnfName}/p-interfaces/p-interface/{tp-id}")
     Call<ResponseBody> getTerminationPoint(@Path("pnfName") String pnfName,@Path("tp-id") String tpId);
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
     @GET("/api/aai-business/v16/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}/service-instances/service-instance/{service-instance-id}/allotted-resources/allotted-resource/{allotted-resource-id}")
     Call<ResponseBody> getAllotedResourceFor5G(@Path("global-customer-id") String globalCustomerId,@Path("service-type") String serviceType,
                                                @Path("service-instance-id") String serviceinstanceid,@Path("allotted-resource-id") String allottedResourceId);
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
+
     @GET("/api/aai-network/v14/site-resources/site-resource/{site-resource-id}")
     Call<ResponseBody> getSiteResourceInfo(@Path("site-resource-id") String siteResourceId);
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
     @GET("/api/aai-cloudInfrastructure/v14/complexes/complex/{complex-id}")
     Call<ResponseBody> getComplexObject(@Path("complex-id") String complexId);
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
-
     @GET("/api/aai-business/v14/customers/customer/{global-customer-id}/service-subscriptions/service-subscription/{service-type}/service-instances")
     Call<ResponseBody> getAllServiceInformation(@Path("global-customer-id") String customerId, @Path("service-type") String serviceType);
-//    @Headers({
-//            "X-TransactionId: 7777",
-//            "X-FromAppId: uui",
-//            "Authorization: Basic QUFJOkFBSQ==",
-//            "Accept: application/json"
-//    })
-//    @GET("/api/aai-network/v14/pnfs/pnf/{pnfName}")
-//    Call<ResponseBody> getPnfInfo(@Path("pnfName") String pnfName);
-
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
 
     @GET("/api/aai-business/v13/customers/customer/{global-customer-id}/service-subscriptions")
     Call<ResponseBody> getServiceSubscription(@Path("global-customer-id") String customerID);
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
-
     @GET("/aai/v19/network/generic-vnfs/generic-vnf/{vnf-id}")
     Call<ResponseBody> getVNFsDetail(@Path("vnf-id") String vnfId);
 
-    @Headers({
-            "X-TransactionId: 7777",
-            "X-FromAppId: uui",
-            "Authorization: Basic QUFJOkFBSQ==",
-            "Accept: application/json"
-    })
-
     @GET("/aai/v19/network/unis/uni/{uni-id}")
     Call<ResponseBody> getUNIInfo(@Path("uni-id") String uniId);
 }
diff --git a/server/src/main/java/org/onap/usecaseui/server/service/lcm/impl/DefaultCustomerService.java b/server/src/main/java/org/onap/usecaseui/server/service/lcm/impl/DefaultCustomerService.java
index 8291307a..59eb4707 100644
--- a/server/src/main/java/org/onap/usecaseui/server/service/lcm/impl/DefaultCustomerService.java
+++ b/server/src/main/java/org/onap/usecaseui/server/service/lcm/impl/DefaultCustomerService.java
@@ -26,10 +26,6 @@ import org.onap.usecaseui.server.service.lcm.domain.aai.bean.Results;
 import org.onap.usecaseui.server.service.lcm.domain.aai.bean.AAINetworkInterfaceResponse;
 
 import org.onap.usecaseui.server.service.lcm.domain.aai.exceptions.AAIException;
-import org.onap.usecaseui.server.util.RestfulServices;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.context.annotation.EnableAspectJAutoProxy;
 import org.springframework.stereotype.Service;
 
 import com.alibaba.fastjson.JSONObject;
@@ -48,23 +44,15 @@ import java.util.List;
 import java.util.ArrayList;
 
 import jakarta.servlet.http.HttpServletRequest;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 
+@Slf4j
 @Service("CustomerService")
-@org.springframework.context.annotation.Configuration
-@EnableAspectJAutoProxy
+@RequiredArgsConstructor
 public class DefaultCustomerService implements CustomerService {
 
-    private static final Logger logger = LoggerFactory.getLogger(DefaultCustomerService.class);
-
-    private AAIService aaiService;
-
-    public DefaultCustomerService() {
-        this(RestfulServices.create(AAIService.class));
-    }
-
-    public DefaultCustomerService(AAIService aaiService) {
-        this.aaiService = aaiService;
-    }
+    private final AAIService aaiService;
 
     @Override
     public List<AAICustomer> listCustomer() {
@@ -73,23 +61,23 @@ public class DefaultCustomerService implements CustomerService {
             if (response.isSuccessful()) {
                 return response.body().getCustomer();
             } else {
-                logger.info(String.format("Can not get customers[code=%s, message=%s]", response.code(), response.message()));
+                log.info(String.format("Can not get customers[code=%s, message=%s]", response.code(), response.message()));
                 return Collections.emptyList();
             }
         } catch (IOException e) {
-            logger.error("list customers occur exception");
+            log.error("list customers occur exception");
             throw new AAIException("AAI is not available.", e);
         }
     }
-    
+
     @Override
     public JSONObject createOrUpdateCustomer(HttpServletRequest request,String customerId){
     		JSONObject result = new JSONObject();
 		try {
-			logger.info("aai createOrUpdateCustomer is starting!");
+			log.info("aai createOrUpdateCustomer is starting!");
 			RequestBody requestBody = extractBody(request);
 			Response<ResponseBody> response = this.aaiService.createOrUpdateCustomer(customerId,requestBody).execute();
-			logger.info("aai createOrUpdateCustomer is finished!");
+			log.info("aai createOrUpdateCustomer is finished!");
 			if(response.isSuccessful()){
 				result.put("status", "SUCCESS");
 			}else{
@@ -102,14 +90,14 @@ public class DefaultCustomerService implements CustomerService {
 		}
 		return result;
     }
-    
+
     @Override
     public JSONObject getCustomerById(String customerId){
     		JSONObject result = new JSONObject();
 		try {
-			logger.info("aai getCustomerById is starting!");
+			log.info("aai getCustomerById is starting!");
 			Response<AAICustomer> response = this.aaiService.getCustomerById(customerId).execute();
-			logger.info("aai getCustomerById is finished!");
+			log.info("aai getCustomerById is finished!");
 			if(response.isSuccessful()){
 				result.put("status", "SUCCESS");
 				result.put("result",response.body());
@@ -123,14 +111,14 @@ public class DefaultCustomerService implements CustomerService {
 		}
 		return result;
     }
-    
+
     @Override
     public JSONObject deleteCustomer(String customerId,String resourceVersion){
 		JSONObject result = new JSONObject();
 		try {
-			logger.info("aai deleteCustomer is starting!");
+			log.info("aai deleteCustomer is starting!");
 			Response<ResponseBody> response = this.aaiService.deleteCustomer(customerId,resourceVersion).execute();
-			logger.info("aai deleteCustomer is finished!");
+			log.info("aai deleteCustomer is finished!");
 			if(response.isSuccessful()){
 				result.put("status", "SUCCESS");
 			}else{
@@ -146,7 +134,7 @@ public class DefaultCustomerService implements CustomerService {
 		}
 		return result;
     }
-    
+
     @Override
     public List<AAIServiceSubscription> listServiceSubscriptions(String serviceType) {
         try {
@@ -154,23 +142,23 @@ public class DefaultCustomerService implements CustomerService {
             if (response.isSuccessful()) {
                 return response.body().getServiceSubscriptions();
             } else {
-                logger.info(String.format("Can not get service-subscriptions[code=%s, message=%s]", response.code(), response.message()));
+                log.info(String.format("Can not get service-subscriptions[code=%s, message=%s]", response.code(), response.message()));
                 return Collections.emptyList();
             }
         } catch (IOException e) {
-            logger.error("list customers occur exception");
+            log.error("list customers occur exception");
             throw new AAIException("AAI is not available.", e);
         }
     }
-    
+
     @Override
     public JSONObject createOrUpdateServiceType(HttpServletRequest request,String serviceType,String customerId){
 		JSONObject result = new JSONObject();
 		try {
-			logger.info("aai createOrUpdateServiceType is starting!");
+			log.info("aai createOrUpdateServiceType is starting!");
 			RequestBody requestBody = extractBody(request);
 			Response<ResponseBody> response = this.aaiService.createOrUpdateServiceType(customerId,serviceType,requestBody).execute();
-			logger.info("aai createOrUpdateServiceType is finished!");
+			log.info("aai createOrUpdateServiceType is finished!");
 			if(response.isSuccessful()){
 				result.put("status", "SUCCESS");
 			}else{
@@ -183,14 +171,14 @@ public class DefaultCustomerService implements CustomerService {
 		}
 		return result;
     }
-    
+
     @Override
     public JSONObject deleteServiceType(String customerId,String serviceType,String resourceVersion){
 		JSONObject result = new JSONObject();
 		try {
-			logger.info("aai deleteServiceType is starting!");
+			log.info("aai deleteServiceType is starting!");
 			Response<ResponseBody> response = this.aaiService.deleteServiceType(customerId,serviceType,resourceVersion).execute();
-			logger.info("aai deleteServiceType is finished!");
+			log.info("aai deleteServiceType is finished!");
 			if(response.isSuccessful()){
 				result.put("status", "SUCCESS");
 			}else{
@@ -206,15 +194,15 @@ public class DefaultCustomerService implements CustomerService {
 		}
 		return result;
     }
-    
+
     @Override
     public JSONObject getServiceTypeById(String customerId, String serviceType) {
         JSONObject result = new JSONObject();
         try {
-            logger.info("aai getServiceTypeById is starting!");
+            log.info("aai getServiceTypeById is starting!");
             Response<AAIServiceSubscription> response =
                     this.aaiService.getServiceTypeById(customerId, serviceType).execute();
-            logger.info("aai getServiceTypeById is finished!");
+            log.info("aai getServiceTypeById is finished!");
             if (response.isSuccessful()) {
                 result.put("status", "SUCCESS");
                 result.put("result", response.body());
@@ -229,7 +217,7 @@ public class DefaultCustomerService implements CustomerService {
         }
         return result;
     }
-        
+
         @Override
     public List<String> fetchNIList(String networkInterfaceType) {
         List<String> niList = new ArrayList<String>();
@@ -237,19 +225,19 @@ public class DefaultCustomerService implements CustomerService {
         ObjectMapper mapper = new ObjectMapper();
         Results[] interfaceList = null;
         try {
-            logger.info("aai fetchNIList is starting!");
+            log.info("aai fetchNIList is starting!");
             String body = "{\r\n" + "\"start\" : [\"network\"],\r\n" + "\"query\" : \"query/getInterfaceTypes?porttype="
                     + networkInterfaceType + "\"\r\n" + "}";
-            logger.info("request body {} for Interface type {}" , body,networkInterfaceType);
+            log.info("request body {} for Interface type {}" , body,networkInterfaceType);
             RequestBody request = RequestBody.create(MediaType.parse("application/json"), body);
             Response<ResponseBody> response = this.aaiService.querynNetworkResourceList(request).execute();
             if (response.isSuccessful()) {
                 String jsonResponse = response.body().string();
-                logger.info("response json returned {}", jsonResponse);
+                log.info("response json returned {}", jsonResponse);
                 try {
                     niResponse = mapper.readValue(jsonResponse, AAINetworkInterfaceResponse.class);
                 } catch (IOException ex) {
-                    logger.info("read value exception", ex);
+                    log.info("read value exception", ex);
                 }
                 if (niResponse != null) {
                     interfaceList = niResponse.getResults();
@@ -259,13 +247,13 @@ public class DefaultCustomerService implements CustomerService {
                     niList.add(pInterface.getInterfaceName() + " (" + pInterface.getPortDescription() + ")");
                 }
             } else {
-                logger.error("Request to AAI Fails dues to {} " , response.errorBody());
+                log.error("Request to AAI Fails dues to {} " , response.errorBody());
                 throw new IOException(response.errorBody().toString());
             }
         } catch (Exception e) {
             niResponse = null;
-            logger.info("Request to AAI Fails dues to " + e);
-            logger.info("Mocking Response Data");
+            log.info("Request to AAI Fails dues to " + e);
+            log.info("Mocking Response Data");
 
             String jsonMock = "{\r\n" + "    \"results\": [\r\n" + "        {\r\n"
                     + "            \"p-interface\": {\r\n"
@@ -315,7 +303,7 @@ public class DefaultCustomerService implements CustomerService {
             try {
                 niResponse = mapper.readValue(jsonMock, AAINetworkInterfaceResponse.class);
             } catch (IOException ex) {
-                logger.info("ReadValue exception", ex);
+                log.info("ReadValue exception", ex);
             }
 
             if (niResponse != null) {
@@ -325,7 +313,7 @@ public class DefaultCustomerService implements CustomerService {
                 PInterface pInterface = result.getPinterface();
                 niList.add(pInterface.getInterfaceName());
             }
-        
+
 	}
 	Collections.sort(niList);
         return niList;
diff --git a/server/src/test/java/org/onap/usecaseui/server/service/lcm/impl/DefaultCustomerServiceIntegrationTest.java b/server/src/test/java/org/onap/usecaseui/server/service/lcm/impl/DefaultCustomerServiceIntegrationTest.java
new file mode 100644
index 00000000..a1908a52
--- /dev/null
+++ b/server/src/test/java/org/onap/usecaseui/server/service/lcm/impl/DefaultCustomerServiceIntegrationTest.java
@@ -0,0 +1,83 @@
+/**
+ * Copyright 2025 Deutsche Telekom.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onap.usecaseui.server.service.lcm.impl;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.stubFor;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.util.List;
+
+import org.junit.jupiter.api.Test;
+import org.onap.usecaseui.server.config.AAIClientConfig;
+import org.onap.usecaseui.server.controller.lcm.CustomerController;
+import org.onap.usecaseui.server.service.lcm.CustomerService;
+import org.onap.usecaseui.server.service.lcm.domain.aai.bean.AAICustomer;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.http.HttpHeaders;
+import org.wiremock.spring.EnableWireMock;
+
+@EnableWireMock
+@SpringBootTest(
+    webEnvironment = WebEnvironment.RANDOM_PORT,
+    classes = {
+        AAIClientConfig.class, DefaultCustomerService.class, CustomerController.class
+    },
+    properties = {
+        "spring.main.web-application-type=none", // only temporary
+        "client.aai.baseUrl=${wiremock.server.baseUrl}",
+        "client.aai.username=AAI",
+        "client.aai.password=AAI"
+    })
+public class DefaultCustomerServiceIntegrationTest {
+
+    @Autowired
+    CustomerService customerService;
+
+    @Value("${client.aai.username}")
+    String username;
+
+    @Value("${client.aai.password}")
+    String password;
+
+    @Test
+    void thatAAIRequestsAreCorrect() {
+        stubFor(
+            get("/api/aai-business/v13/customers")
+            .withBasicAuth(username, password)
+            .withHeader(HttpHeaders.ACCEPT, equalTo("application/json"))
+            .withHeader("X-TransactionId", equalTo("7777"))
+            .withHeader("X-FromAppId", equalTo("uui"))
+            .willReturn(
+                aResponse().withBodyFile("customersResponse.json")
+            ));
+
+        List<AAICustomer> customers = customerService.listCustomer();
+        assertNotNull(customers);
+        assertEquals(1, customers.size());
+        assertEquals("someCustomer", customers.get(0).getGlobalCustomerId());
+        assertEquals("someSubscriber", customers.get(0).getSubscriberName());
+        assertEquals("someType", customers.get(0).getSubscriberType());
+        assertEquals("abcd", customers.get(0).getResourceVersion());
+    }
+}
diff --git a/server/src/test/resources/__files/customersResponse.json b/server/src/test/resources/__files/customersResponse.json
new file mode 100644
index 00000000..6a827fc5
--- /dev/null
+++ b/server/src/test/resources/__files/customersResponse.json
@@ -0,0 +1,10 @@
+{
+  "customer": [
+    {
+      "global-customer-id": "someCustomer",
+      "subscriber-name": "someSubscriber",
+      "subscriber-type": "someType",
+      "resource-version": "abcd"
+    }
+  ]
+}