create 50 worker pool what will do Async get request to URL and print result

go-get-it.go

package main

import (
    "fmt"
    "sync"
    "strconv"
    "net/http"
    "io/ioutil"
)
var wg sync.WaitGroup

func worker(id int, jobs <-chan int) {
    defer wg.Done()
    for j := range jobs {
        url := "https://api.example.com/products/"+strconv.Itoa(j)

        req, err := http.NewRequest("GET", url, nil)
        req.Header.Set("Authorization", "Bearer token")

        client := &http.Client{}
        resp, err := client.Do(req)
        if err != nil {
            panic(err)
        }
        defer resp.Body.Close()

        // fmt.Println("response Status:", resp.Status)
        // fmt.Println("response Headers:", resp.Header)
        body, _ := ioutil.ReadAll(resp.Body)
        fmt.Println(string(body))
    }
}

func main() {	
    jobs := make(chan int)
    
    for w := 1; w <= 50; w++ {
        wg.Add(1)
        go worker(w, jobs)
    }	

    for j := 8600000; j < 8680000; j++ {
        jobs <- j
    }
    close(jobs)	
    wg.Wait()
}