feat: BaseResponse, 응답 메세지 enum class 구현

Author: unanchoi

src/main/kotlin/site/katchup/springboot/global/message/FailMessage.kt

@@ -0,0 +1,5 @@
+package site.katchup.springboot.global.message
+
+enum class FailMessage(
+    val value: String,
+)

src/main/kotlin/site/katchup/springboot/global/message/SuccessMessage.kt

@@ -0,0 +1,8 @@
+package site.katchup.springboot.global.message
+
+enum class SuccessMessage(
+    val value: String,
+) {
+    SUCCESS_HEALTH_CHECK("OK"),
+    ;
+}

src/main/kotlin/site/katchup/springboot/global/response/BaseResponse.kt

@@ -0,0 +1,28 @@
+package site.katchup.springboot.global.response
+
+import com.fasterxml.jackson.annotation.JsonInclude
+import org.springframework.http.HttpStatus
+import org.springframework.http.ResponseEntity
+import site.katchup.springboot.global.message.FailMessage
+import site.katchup.springboot.global.message.SuccessMessage
+
+class BaseResponse<T>(
+    val message: String,
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    val data: T?,
+) {
+    constructor(message: String) : this(message, null)
+    companion object {
+        fun <T> ok(message: SuccessMessage, data: T): ResponseEntity<BaseResponse<T>> {
+            return ResponseEntity.ok(BaseResponse(message.value, data))
+        }
+
+        fun <T> created(message: SuccessMessage, data: T): ResponseEntity<BaseResponse<T>> {
+            return ResponseEntity.status(HttpStatus.CREATED).body(BaseResponse(message.value, data))
+        }
+
+        fun <T> fail(message: FailMessage): BaseResponse<T> {
+            return BaseResponse(message.value, null)
+        }
+    }
+}