city_chips/internal/middleware/cors.go

package middleware

import (
	"github.com/gin-gonic/gin"
	"net/http"
)

func CORSMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {
		method := c.Request.Method
		c.Header("Access-Control-Allow-Origin", c.GetHeader("Origin"))
		c.Header("Access-Control-Allow-Credentials", "true")

		if method == "OPTIONS" {
			c.Header("Access-Control-Allow-Methods", c.GetHeader("Access-Control-Request-Method"))
			c.Header("Access-Control-Allow-Headers", c.GetHeader("Access-Control-Request-Headers"))
			c.Header("Access-Control-Max-Age", "7200")
			c.AbortWithStatus(http.StatusNoContent)
			return
		}
		c.Next()
	}
}