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client.go
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client.go
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package main
import (
"flag"
"fmt"
"io/ioutil"
"log"
"net/http"
"sync"
"time"
)
func hostname(url, key string) (string, error) {
client := &http.Client{}
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return "", err
}
req.Header.Set("X-Affinity", key)
resp, err := client.Do(req)
if err != nil {
return "", err
}
if resp.StatusCode != http.StatusOK {
return "", fmt.Errorf("HTTP %d", resp.StatusCode)
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
return string(body), err
}
func send(url string, key string, n int, delay time.Duration) {
var wg sync.WaitGroup
wg.Add(n)
for i := 0; i < n; i++ {
go func() {
name, err := hostname(url, key)
fmt.Println(name)
if err != nil {
log.Fatal(err)
}
wg.Done()
}()
time.Sleep(delay)
}
wg.Wait()
}
func main() {
url := flag.String("url", "", "proxy url")
flag.Parse()
var wg sync.WaitGroup
wg.Add(2)
go func() {
send(*url, "Marc", 100, 10*time.Millisecond)
wg.Done()
}()
go func() {
send(*url, "Sophie", 100, 10*time.Millisecond)
wg.Done()
}()
wg.Wait()
}