Initialize default roles automatically on first application startup

Author: MD-Suhad

pom.xml

@@ -33,11 +33,12 @@
             <artifactId>spring-boot-starter</artifactId>
         </dependency>
 
-        <dependency>
-            <groupId>mysql</groupId>
-            <artifactId>mysql-connector-java</artifactId>
-            <scope>runtime</scope>
-        </dependency>
+		<dependency>
+			<groupId>com.mysql</groupId>
+			<artifactId>mysql-connector-j</artifactId>
+			<version>8.4.0</version>
+			<scope>runtime</scope>
+		</dependency>
 
 		<dependency>
 			<groupId>org.projectlombok</groupId>

src/main/java/com/sopromadze/blogapi/repository/RoleRepository.java

@@ -8,4 +8,5 @@
 
 public interface RoleRepository extends JpaRepository<Role, Long> {
 	Optional<Role> findByName(RoleName name);
+	boolean existsByName(RoleName name);
 }

src/main/java/com/sopromadze/blogapi/utils/RoleInitializer.java

@@ -0,0 +1,25 @@
+package com.sopromadze.blogapi.utils;
+
+import com.sopromadze.blogapi.model.role.Role;
+import com.sopromadze.blogapi.model.role.RoleName;
+import com.sopromadze.blogapi.repository.RoleRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+@Component
+public class RoleInitializer implements CommandLineRunner {
+    @Autowired
+    private RoleRepository roleRepository;
+
+    public void run(String... args){
+        if(!roleRepository.existsByName(RoleName.ROLE_ADMIN)){
+            roleRepository.save(new Role(RoleName.ROLE_ADMIN));
+        }
+        if(!roleRepository.existsByName(RoleName.ROLE_USER)){
+            roleRepository.save(new Role(RoleName.ROLE_USER));
+        }
+
+        System.out.println("Role Initialized Successfully");
+    }
+}

src/main/resources/application.yml

@@ -1,11 +1,11 @@
 spring:
   datasource:
-    url: jdbc:mysql://blogapi-db:3306/blogapi?useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true
+    url: jdbc:mysql://localhost:3306/blogapi?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC
     username: root
-    password: root
+    password: ??@@suhad@@??
   jpa:
     hibernate:
-      ddl-auto: none
+      ddl-auto: update
     show-sql: true
     properties:
       hibernate: