first commit

internal/middleware/error_handler.go

@@ -0,0 +1,54 @@
+package middleware
+
+import (
+	models "api-service/internal/models"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+// ErrorHandler handles errors globally
+func ErrorHandler() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Next()
+
+		if len(c.Errors) > 0 {
+			err := c.Errors.Last()
+			status := http.StatusInternalServerError
+
+			// Determine status code based on error type
+			switch err.Type {
+			case gin.ErrorTypeBind:
+				status = http.StatusBadRequest
+			case gin.ErrorTypeRender:
+				status = http.StatusUnprocessableEntity
+			case gin.ErrorTypePrivate:
+				status = http.StatusInternalServerError
+			}
+
+			response := models.ErrorResponse{
+				Error:   "internal_error",
+				Message: err.Error(),
+				Code:    status,
+			}
+
+			c.JSON(status, response)
+		}
+	}
+}
+
+// CORS middleware configuration
+func CORSConfig() gin.HandlerFunc {
+	return gin.HandlerFunc(func(c *gin.Context) {
+		c.Header("Access-Control-Allow-Origin", "*")
+		c.Header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, PATCH")
+		c.Header("Access-Control-Allow-Headers", "Origin, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
+
+		if c.Request.Method == "OPTIONS" {
+			c.AbortWithStatus(204)
+			return
+		}
+
+		c.Next()
+	})
+}