在Golang中处理并发HTTP请求

I'm trying to process a file which contains 200 URLs and use each URL to make an HTTP request. I need to process 10 URLs concurrently maximum each time (code should block until 10 URLs finish processing). Tried to solve it in go but I keep getting the whole file processed with 200 concurrent connection created.

for scanner.Scan() { // loop through each url in the file
        // send each url to golang HTTPrequest
        go HTTPrequest(scanner.Text(), channel, &wg)
}
fmt.Println(<-channel)
wg.Wait()

What should i do?