init

backend/common/common-api/pom.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>com.k12study</groupId>
+        <artifactId>k12study-backend</artifactId>
+        <version>0.1.0-SNAPSHOT</version>
+        <relativePath>../../pom.xml</relativePath>
+    </parent>
+    <artifactId>common-api</artifactId>
+    <dependencies>
+        <dependency>
+            <groupId>com.k12study</groupId>
+            <artifactId>common-core</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+    </dependencies>
+</project>

backend/common/common-api/src/main/java/com/k12study/common/api/response/ApiResponse.java

@@ -0,0 +1,31 @@
+package com.k12study.common.api.response;
+
+import com.k12study.common.core.utils.TraceIdHolder;
+import lombok.Getter;
+
+@Getter
+public class ApiResponse<T> {
+    private final int code;
+    private final String message;
+    private final T data;
+    private final String traceId;
+
+    private ApiResponse(int code, String message, T data, String traceId) {
+        this.code = code;
+        this.message = message;
+        this.data = data;
+        this.traceId = traceId;
+    }
+
+    public static <T> ApiResponse<T> success(T data) {
+        return new ApiResponse<>(0, "OK", data, TraceIdHolder.getOrCreate());
+    }
+
+    public static <T> ApiResponse<T> success(String message, T data) {
+        return new ApiResponse<>(0, message, data, TraceIdHolder.getOrCreate());
+    }
+
+    public static <T> ApiResponse<T> failure(int code, String message) {
+        return new ApiResponse<>(code, message, null, TraceIdHolder.getOrCreate());
+    }
+}