diff --git a/aws-app-sync/src/main/java/com/baeldung/awsappsync/AppSyncClientHelper.java b/aws-app-sync/src/main/java/com/baeldung/awsappsync/AppSyncClientHelper.java
index fcbc0aa275..b310e60748 100644
--- a/aws-app-sync/src/main/java/com/baeldung/awsappsync/AppSyncClientHelper.java
+++ b/aws-app-sync/src/main/java/com/baeldung/awsappsync/AppSyncClientHelper.java
@@ -11,7 +11,7 @@ import java.util.Map;
 public class AppSyncClientHelper {
 
     static String apiUrl = "https://m4i3b6icrrb7livfbypfspiifi.appsync-api.us-east-2.amazonaws.com";
-    static String apiKey = "da2-es2s6oj4mzhbxk5yu26ss2ruj4";
+    static String apiKey = "da2-bm4rpatkkrc5jfyhvvq7itjeke";
     static String API_KEY_HEADER = "x-api-key";
 
     public static WebClient.ResponseSpec getResponseBodySpec(Map<String, Object> requestBody) {
diff --git a/aws-app-sync/src/main/java/com/baeldung/awsappsync/AwsAppSyncApplication.java b/aws-app-sync/src/main/java/com/baeldung/awsappsync/AwsAppSyncApplication.java
index ae012c91a5..19fffd2994 100644
--- a/aws-app-sync/src/main/java/com/baeldung/awsappsync/AwsAppSyncApplication.java
+++ b/aws-app-sync/src/main/java/com/baeldung/awsappsync/AwsAppSyncApplication.java
@@ -6,8 +6,8 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 @SpringBootApplication
 public class AwsAppSyncApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(AwsAppSyncApplication.class, args);
-	}
+    public static void main(String[] args) {
+        SpringApplication.run(AwsAppSyncApplication.class, args);
+    }
 
 }
diff --git a/aws-app-sync/src/test/java/com/baeldung/awsappsync/AwsAppSyncApplicationTests.java b/aws-app-sync/src/test/java/com/baeldung/awsappsync/AwsAppSyncApplicationTests.java
index cd14bcd5b2..6e94651789 100644
--- a/aws-app-sync/src/test/java/com/baeldung/awsappsync/AwsAppSyncApplicationTests.java
+++ b/aws-app-sync/src/test/java/com/baeldung/awsappsync/AwsAppSyncApplicationTests.java
@@ -12,42 +12,61 @@ import static org.junit.jupiter.api.Assertions.*;
 @SpringBootTest
 class AwsAppSyncApplicationTests {
 
-	@Test
-	void givenGraphQuery_whenListEvents_thenReturnAllEvents() {
+    @Test
+    void givenGraphQuery_whenListEvents_thenReturnAllEvents() {
 
-		Map<String, Object> requestBody = new HashMap<>();
-		requestBody.put("query", "query ListEvents { listEvents { items { id name where when description } } }");
-		requestBody.put("variables", "");
-		requestBody.put("operationName", "ListEvents");
+        Map<String, Object> requestBody = new HashMap<>();
+        requestBody.put("query", "query ListEvents {" +
+                "  listEvents {" +
+                "    items {" +
+                "      id" +
+                "      name" +
+                "      where" +
+                "      when" +
+                "      description" +
+                "    }" +
+                "  }" +
+                "}");
+        requestBody.put("variables", "");
+        requestBody.put("operationName", "ListEvents");
 
-		String bodyString = AppSyncClientHelper.getResponseBodySpec(requestBody)
-				.bodyToMono(String.class).block();
+        String bodyString = AppSyncClientHelper.getResponseBodySpec(requestBody)
+                .bodyToMono(String.class).block();
 
-		assertNotNull(bodyString);
-		assertTrue(bodyString.contains("My First Event"));
-		assertTrue(bodyString.contains("where"));
-		assertTrue(bodyString.contains("when"));
-	}
+        assertNotNull(bodyString);
+        assertTrue(bodyString.contains("My First Event"));
+        assertTrue(bodyString.contains("where"));
+        assertTrue(bodyString.contains("when"));
+    }
 
-	@Test
-	void givenGraphAdd_whenMutation_thenReturnIdNameDesc() {
+    @Test
+    void givenGraphAdd_whenMutation_thenReturnIdNameDesc() {
 
-		String queryString = "mutation add { createEvent( name:\"My added GraphQL event\" where:\"Day 2\"" +
-						" when:\"Saturday night\" description:\"Studying GraphQL\" ){ id name description } }";
+        String queryString = "mutation add {" +
+                "    createEvent(" +
+                "        name:\"My added GraphQL event\"" +
+                "        where:\"Day 2\"" +
+                "        when:\"Saturday night\"" +
+                "        description:\"Studying GraphQL\"" +
+                "    ){" +
+                "        id" +
+                "        name" +
+                "        description" +
+                "    }" +
+                "}";
 
+        Map<String, Object> requestBody = new HashMap<>();
+        requestBody.put("query", queryString);
+        requestBody.put("variables", "");
+        requestBody.put("operationName", "add");
 
-		Map<String, Object> requestBody = new HashMap<>();
-		requestBody.put("query", queryString);
-		requestBody.put("variables", "");
-		requestBody.put("operationName", "add");
+        WebClient.ResponseSpec response = AppSyncClientHelper.getResponseBodySpec(requestBody);
 
-		WebClient.ResponseSpec response = AppSyncClientHelper.getResponseBodySpec(requestBody);
+        String bodyString = response.bodyToMono(String.class).block();
 
-		String bodyString = response.bodyToMono(String.class).block();
-
-		assertNotNull(bodyString);
-		assertTrue(bodyString.contains("My added GraphQL event"));
-		assertFalse(bodyString.contains("where"));
-		assertFalse(bodyString.contains("when"));
-	}
+        assertNotNull(bodyString);
+        assertTrue(bodyString.contains("My added GraphQL event"));
+        assertFalse(bodyString.contains("where"));
+        assertFalse(bodyString.contains("when"));
+    }
 }
diff --git a/pom.xml b/pom.xml
index 22d73f3a9e..8f2cc8e902 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1015,7 +1015,7 @@
                 <module>asm</module>
                 <module>atomix</module>
                 <module>aws</module>
-				<module>aws-app-sync</module>
+                <module>aws-app-sync</module>
                 <module>aws-lambda</module>
                 <module>axon</module>
                 <module>azure</module>