Add load testing tool for inventory status endpoint

- Implemented a load testing utility in main.go to simulate concurrent requests to the inventory status endpoint.
- Introduced a Metrics struct to track successes, failures, and response times.
- Added functionality to calculate and print a summary of the load test results, including total requests, success rate, and response time statistics.
- Utilized goroutines and a WaitGroup to handle concurrent HTTP requests efficiently.

backend/loadtest/main.go

@@ -0,0 +1,97 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"sync"
+	"time"
+)
+
+type Metrics struct {
+	mu        sync.Mutex
+	successes int
+	failures  int
+	times     []time.Duration
+}
+
+func (m *Metrics) AddResult(success bool, duration time.Duration) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	if success {
+		m.successes++
+	} else {
+		m.failures++
+	}
+	m.times = append(m.times, duration)
+}
+
+func (m *Metrics) PrintSummary(total int) {
+	var totalTime time.Duration
+	var min, max time.Duration
+
+	if len(m.times) > 0 {
+		min = m.times[0]
+		max = m.times[0]
+	}
+
+	for _, t := range m.times {
+		totalTime += t
+		if t < min {
+			min = t
+		}
+		if t > max {
+			max = t
+		}
+	}
+
+	avg := time.Duration(0)
+	if len(m.times) > 0 {
+		avg = totalTime / time.Duration(len(m.times))
+	}
+
+	fmt.Println("---------- Load Test Summary ----------")
+	fmt.Printf("Total Requests: %d\n", total)
+	fmt.Printf("Success: %d | Fail: %d\n", m.successes, m.failures)
+	fmt.Printf("Min Time: %v | Max Time: %v | Avg Time: %v\n", min, max, avg)
+	fmt.Printf("Success rate: %.2f%%\n", float64(m.successes)/float64(total)*100)
+	fmt.Println("---------------------------------------")
+}
+
+func hitEndpoint(wg *sync.WaitGroup, url string, metrics *Metrics) {
+	defer wg.Done()
+
+	req, _ := http.NewRequest("GET", url, nil)
+	// req.Header.Set("Authorization", "Bearer "+token)
+
+	client := &http.Client{}
+	start := time.Now()
+	resp, err := client.Do(req)
+	duration := time.Since(start)
+
+	if err != nil {
+		fmt.Println("Error:", err)
+		metrics.AddResult(false, duration)
+		return
+	}
+	defer resp.Body.Close()
+
+	success := resp.StatusCode >= 200 && resp.StatusCode < 300
+	metrics.AddResult(success, duration)
+}
+
+func main() {
+	baseURL := "http://localhost:8000/inventory/status"
+	concurrentUsers := 1000
+
+	var wg sync.WaitGroup
+	metrics := &Metrics{}
+
+	for i := 0; i < concurrentUsers; i++ {
+		wg.Add(1)
+		go hitEndpoint(&wg, baseURL, metrics)
+	}
+
+	wg.Wait()
+	metrics.PrintSummary(concurrentUsers)
+}

frontend/package.json

@@ -41,7 +41,7 @@
     "framer-motion": "^12.4.10",
     "js-cookie": "^3.0.5",
     "lucide-react": "^0.475.0",
-    "next": "15.1.0",
+    "next": "15.2.4",
     "next-auth": "^4.24.11",
     "next-themes": "^0.4.6",
     "react": "^19.0.0",