Legg til openapi eksempel initaliserer (#43)

bidrag-commons/pom.xml

@@ -148,6 +148,11 @@
       <artifactId>bidrag-transport-felles</artifactId>
       <version>${project.parent.version}</version>
     </dependency>
+    <dependency>
+      <groupId>org.springdoc</groupId>
+      <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+      <scope>provided</scope>
+    </dependency>
     <!-- test -->
     <dependency>
       <groupId>io.mockk</groupId>

bidrag-commons/src/main/kotlin/no/nav/bidrag/commons/util/OpenApiExamplesConfig.kt

@@ -0,0 +1,59 @@
+package no.nav.bidrag.commons.util
+
+import io.swagger.v3.oas.models.OpenAPI
+import io.swagger.v3.oas.models.PathItem
+import io.swagger.v3.oas.models.examples.Example
+import org.springdoc.core.customizers.OpenApiCustomizer
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.http.HttpMethod
+import org.springframework.http.MediaType
+
+@Configuration
+class OpenApiExamplesConfig {
+    @Bean
+    fun openApiCustomiser(examples: Collection<OpenApiExample>): OpenApiCustomizer {
+        return OpenApiCustomizer { openAPI ->
+            examples.forEach { example ->
+                openAPI.components.addExamples(example.name, example.example)
+                examples.groupBy { Pair(it.path, it.method) }.entries.forEach {
+                    openAPI.addExamplesToPath(it.key, it.value)
+                }
+            }
+        }
+    }
+
+    fun OpenAPI.addExamplesToPath(
+        operation: Pair<String, HttpMethod>,
+        openApiExamples: List<OpenApiExample>,
+    ) {
+        val requestBody =
+            paths[operation.first]?.getOperation(operation.second)
+                ?.requestBody
+
+        val jsonBody = requestBody?.content?.get(MediaType.APPLICATION_JSON_VALUE)
+
+        openApiExamples
+            .forEach {
+                jsonBody?.addExamples(it.name, it.example)
+            }
+    }
+
+    fun PathItem.getOperation(httpMethod: HttpMethod) =
+        when (httpMethod) {
+            HttpMethod.POST -> post
+            HttpMethod.PUT -> put
+            HttpMethod.PATCH -> patch
+            HttpMethod.DELETE -> delete
+            HttpMethod.OPTIONS -> options
+            HttpMethod.GET -> get
+            else -> null
+        }
+}
+
+data class OpenApiExample(
+    val example: Example,
+    val method: HttpMethod,
+    val path: String,
+    val name: String = example.description,
+)

pom.xml

@@ -22,6 +22,7 @@
         <mockk.version>1.13.9</mockk.version>
         <spring-boot.version>3.2.1</spring-boot.version>
         <kotlin-logging-jvm.version>6.0.2</kotlin-logging-jvm.version>
+        <springdoc-openapi-ui.version>2.3.0</springdoc-openapi-ui.version>
 
         <!-- plugins -->
         <maven-compiler.version>3.12.1</maven-compiler.version>
@@ -87,7 +88,13 @@
                 <artifactId>kotlin-logging-jvm</artifactId>
                 <version>${kotlin-logging-jvm.version}</version>
             </dependency>
+            <dependency>
+                <groupId>org.springdoc</groupId>
+                <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+                <version>${springdoc-openapi-ui.version}</version>
+            </dependency>
 
+            <!-- test-->
             <dependency>
                 <groupId>org.jetbrains.kotlin</groupId>
                 <artifactId>kotlin-test-junit5</artifactId>