Add REST API

build.gradle.kts

@@ -6,7 +6,7 @@ plugins {
     id("com.netflix.dgs.codegen") version "6.0.3"
     id("org.hibernate.orm") version "6.4.4.Final"
     id("org.graalvm.buildtools.native") version "0.9.28"
-    id("com.vaadin") version "24.3.9"
+//    id("com.vaadin") version "24.3.9"
     kotlin("jvm") version "1.9.23"
     kotlin("plugin.spring") version "1.9.23"
     kotlin("plugin.jpa") version "1.9.23"
@@ -29,7 +29,7 @@ repositories {
     mavenCentral()
 }
 
-extra["vaadinVersion"] = "24.3.9"
+//extra["vaadinVersion"] = "24.3.9"
 
 dependencies {
     implementation("org.springframework.boot:spring-boot-starter-data-jpa")
@@ -38,10 +38,14 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-web")
     implementation("org.springframework.boot:spring-boot-starter-webflux")
     implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
-    implementation("com.vaadin:vaadin-spring-boot-starter")
+//    implementation("com.vaadin:vaadin-spring-boot-starter")
     implementation("io.projectreactor.kotlin:reactor-kotlin-extensions")
     implementation("org.jetbrains.kotlin:kotlin-reflect")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-reactor")
+
+    implementation("org.springdoc:springdoc-openapi-starter-webmvc-api:2.5.0")
+    implementation("org.springdoc:springdoc-openapi-starter-webmvc-ui:2.5.0")
+
     compileOnly("org.projectlombok:lombok")
     developmentOnly("org.springframework.boot:spring-boot-devtools")
     runtimeOnly("com.h2database:h2")
@@ -54,7 +58,7 @@ dependencies {
 
 dependencyManagement {
     imports {
-        mavenBom("com.vaadin:vaadin-bom:${property("vaadinVersion")}")
+//        mavenBom("com.vaadin:vaadin-bom:${property("vaadinVersion")}")
     }
 }
 

src/main/kotlin/pl/writeonly/omnibus/GenerateTestData.kt

@@ -0,0 +1,32 @@
+package pl.writeonly.omnibus
+
+import org.springframework.boot.runApplication
+import java.io.File
+import java.sql.Timestamp
+import java.time.LocalDate
+import java.time.LocalDateTime
+
+class GenerateTestData
+
+fun main(args: Array<String>) {
+
+  val dataSql = File("src/main/resources/data.sql")
+    dataSql.writeText("")
+
+    repeat(100) { i ->
+        val timestamp = Timestamp.valueOf(LocalDateTime.now().minusDays(100 - i.toLong()))
+        dataSql.appendText(
+            "INSERT INTO post(id, title, content, created)"
+                    + " VALUES(${i}, 'Test Post ${i}', 'Content ${i}', TIMESTAMP '${timestamp}');\n"
+        )
+    }
+
+    repeat(1000) { i ->
+        val post_id = i/10
+        val timestamp = Timestamp.valueOf(LocalDateTime.now().minusDays(100 - i.toLong()))
+        dataSql.appendText(
+            "INSERT INTO comment(id, post_id, content, created)"
+                    + " VALUES(${i}, ${post_id}, 'Content ${i}', TIMESTAMP '${timestamp}');\n"
+        )
+    }
+}

src/main/kotlin/pl/writeonly/omnibus/config/Config.kt

@@ -2,7 +2,6 @@ package pl.writeonly.omnibus.config
 
 import com.fasterxml.jackson.annotation.JsonInclude
 import com.fasterxml.jackson.databind.ObjectMapper
-import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.context.annotation.Configuration
 
 @Configuration

src/main/kotlin/pl/writeonly/omnibus/controller/PostController.kt

@@ -0,0 +1,18 @@
+package pl.writeonly.omnibus.controller
+
+import io.swagger.v3.oas.annotations.tags.Tag
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RestController
+import pl.writeonly.omnibus.model.Post
+import pl.writeonly.omnibus.service.PostService
+
+@Tag(name = "Post", description = "the Post Api")
+@RestController
+class PostController(val service: PostService) {
+
+    @GetMapping("/posts")
+    fun getPosts(): List<Post> = service.getPosts()
+
+    @GetMapping("/posts/{id}")
+    fun getPost(id: Long): Post = service.getPost(id)
+}

src/main/kotlin/pl/writeonly/omnibus/model/Comment.kt

@@ -0,0 +1,14 @@
+package pl.writeonly.omnibus.model
+
+import jakarta.persistence.Entity
+import jakarta.persistence.Id
+import java.time.LocalDateTime
+
+@Entity
+open class Comment(
+    @Id
+    open var id: Long?,
+    open var content: String?,
+    open var created: LocalDateTime?
+
+)

src/main/kotlin/pl/writeonly/omnibus/model/Post.kt

@@ -0,0 +1,20 @@
+package pl.writeonly.omnibus.model
+
+import jakarta.persistence.Entity
+import jakarta.persistence.Id
+import jakarta.persistence.JoinColumn
+import jakarta.persistence.OneToMany
+import java.time.LocalDateTime
+
+@Entity
+open class Post(
+    @Id
+    open var id: Long?,
+    open var title: String?,
+    open var content: String?,
+    open var created: LocalDateTime?,
+
+    @OneToMany(targetEntity = Comment::class)
+    @JoinColumn(name = "post_id")
+    open var comments: List<Comment>
+)

src/main/kotlin/pl/writeonly/omnibus/repository/PostRepository.kt

@@ -0,0 +1,9 @@
+package pl.writeonly.omnibus.repository
+
+import org.springframework.data.jpa.repository.JpaRepository
+import org.springframework.stereotype.Repository
+import pl.writeonly.omnibus.model.Post
+
+@Repository
+interface PostRepository : JpaRepository<Post, Long> {
+}

src/main/kotlin/pl/writeonly/omnibus/service/PostService.kt

@@ -0,0 +1,13 @@
+package pl.writeonly.omnibus.service
+
+import org.springframework.stereotype.Service
+import pl.writeonly.omnibus.model.Post
+import pl.writeonly.omnibus.repository.PostRepository
+
+@Service
+class PostService(val repository: PostRepository) {
+
+    fun getPosts(): List<Post> = repository.findAll()
+
+    fun getPost(id: Long): Post = repository.getById(id)
+}

src/main/resources/application.properties

@@ -1 +1,6 @@
 spring.application.name=omnibus
+spring.jpa.hibernate.ddl.auto=none
+spring.jpa.show-sql=true
+#springdoc.swagger-ui.path=/swagger
+#springdoc.api-docs.path=/api-docs
+