how to waiting multiple api responsed in go-playwright ,like javascript promise.all

[mirkcale]

I wirte an go function to waiting some api responsed and then to do something,here is my code

func waitResponse(dashboardIds []int, page playwright.Page) {
	responses := [5]playwright.Response{}
	wg := sync.WaitGroup{}
	baseUrl := "https://example.com"
	for index, v := range dashboardIds {
		wg.Add(1)
		url := fmt.Sprintf("%s/%d?dashboard_id=114", baseUrl, v)
		idx := index
		v := v
		go func() {
			log.Printf("start request %s\n", url) // 1
			response := page.WaitForResponse(url)
			log.Printf("goroutine get response from %s, index is %d\n", url,idx) // 2
			resBody, _ := response.Body()
			responses[idx] = response
			defer wg.Done()
		}()
		page.On("response", func(res playwright.Response) {
			if res.URL() == url {
				log.Printf("listen get response from %s", url) //3
			}
		})
	}
	wg.Wait()
	log.Printf("all url responded") // 4
}

after run this function,I find 1、3 print every time,but 2 is only print one time(idx is 0), is there something wrong in my code?pls help me,thinks!

I want comment 4 could print