substack-ac-7.go

package main

import (
	"fmt"
	"sync"
	"time"
)

func main() {
	const concurrencyLimit = 2
	requests := []string{"Request 1", "Request 2", "Request 3", "Request 4", "Request 5"}

	var wg sync.WaitGroup
	ch := make(chan string, concurrencyLimit)

	for _, req := range requests {
		wg.Add(1)
		go func(r string) {
			defer wg.Done()
			ch <- r // Send request into the channel
			processRequest(r)
			<-ch // Receive from the channel to make room for the next request
		}(req)
	}

	wg.Wait()
	close(ch)
}

func processRequest(request string) {
	// Simulate processing time
	time.Sleep(2 * time.Second)
	fmt.Printf("Processed: %s\n", request)
}