Add Spring Security to Java API Server Template with default User Credentials

java/app/pom.xml

@@ -33,6 +33,10 @@
       <artifactId>spring-boot-starter-test</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-security</artifactId>
+    </dependency>
   </dependencies>
 
   <build>

java/app/src/main/java/com/example/demo/DemoApplication.java

@@ -2,11 +2,18 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
+//Security Imports
+import org.springframework.context.annotation.Bean;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.provisioning.InMemoryUserDetailsManager;
+
 
 @SpringBootApplication
+@Configuration
 public class DemoApplication {
 
   @Value("${NAME:World}")
@@ -19,9 +26,14 @@ String hello() {
       return "Hello " + name + "!";
     }
   }
+  //default username and password can be configured from here Username default is user and password temp
+  @Bean
+  public InMemoryUserDetailsManager userDetailsManager(){
+      UserDetails john=org.springframework.security.core.userdetails.User.builder().username("user").password("{noop}temp").roles("Employee").build();
+      return new InMemoryUserDetailsManager(john);
+  } 
 
   public static void main(String[] args) {
     SpringApplication.run(DemoApplication.class, args);
   }
-
-}
+}