+ Working on the API Rate limiting

lib/controllers/controllers_ratelimiter.go

@@ -0,0 +1,34 @@
+package controllers
+
+import (
+	"time"
+
+	"github.com/JustKato/FreePad/lib/helper"
+	"github.com/gin-gonic/gin"
+	"github.com/ulule/limiter/v3"
+	"github.com/ulule/limiter/v3/drivers/store/memory"
+
+	mgin "github.com/ulule/limiter/v3/drivers/middleware/gin"
+)
+
+// Apply the rate limiter to the gin Engine
+func DoRateLimit(router *gin.Engine) {
+
+	// Initialize the rate limiter
+	rate := limiter.Rate{
+		Period: 5 * time.Minute,
+		Limit:  int64(helper.GetApiBanLimit()),
+	}
+
+	// Initialize the memory storage
+	store := memory.NewStore()
+
+	// Initialize the limiter instance
+	instance := limiter.New(store, rate)
+
+	// Create the gin middleware
+	middleWare := mgin.NewMiddleware(instance)
+
+	// use the middleware in gin
+	router.Use(middleWare)
+}