feat: 初始化配置中心项目

server/internal/middleware/cors.go

@@ -0,0 +1,19 @@
+package middleware
+
+import (
+	"time"
+
+	"github.com/gin-contrib/cors"
+	"github.com/gin-gonic/gin"
+)
+
+func CORS() gin.HandlerFunc {
+	return cors.New(cors.Config{
+		AllowOrigins:     []string{"*"},
+		AllowMethods:     []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"},
+		AllowHeaders:     []string{"Origin", "Content-Type", "Authorization"},
+		ExposeHeaders:    []string{"Content-Length"},
+		AllowCredentials: false,
+		MaxAge:           12 * time.Hour,
+	})
+}