Incorporated review comments from the editor.

patterns/cqrs-es/src/main/java/com/baeldung/patterns/cqrs/aggregates/UserAggregate.java

@@ -14,7 +14,7 @@ public class UserAggregate {
     }
 
     public User handleCreateUserCommand(CreateUserCommand command) {
-        User user = new User(command.getUserId(), command.getFiratName(), command.getLastName());
+        User user = new User(command.getUserId(), command.getFirstName(), command.getLastName());
         writeRepository.addUser(user.getUserid(), user);
         return user;
     }

patterns/cqrs-es/src/main/java/com/baeldung/patterns/cqrs/commands/CreateUserCommand.java

@@ -8,7 +8,7 @@ import lombok.Data;
 public class CreateUserCommand {
 
     private String userId;
-    private String firatName;
+    private String firstName;
     private String lastName;
 
 }

patterns/cqrs-es/src/main/java/com/baeldung/patterns/escqrs/aggregates/UserAggregate.java

@@ -28,7 +28,7 @@ public class UserAggregate {
     }
 
     public List<Event> handleCreateUserCommand(CreateUserCommand command) {
-        UserCreatedEvent event = new UserCreatedEvent(command.getUserId(), command.getFiratName(), command.getLastName());
+        UserCreatedEvent event = new UserCreatedEvent(command.getUserId(), command.getFirstName(), command.getLastName());
         writeRepository.addEvent(command.getUserId(), event);
         return Arrays.asList(event);
     }

patterns/pom.xml

@@ -19,7 +19,7 @@
         <module>design-patterns-functional</module>
         <module>design-patterns-structural</module>
         <module>dip</module>
-		<module>cqrs-es</module>
+        <module>cqrs-es</module>
         <module>front-controller</module>
         <module>intercepting-filter</module>
         <module>solid</module>