Files
learngo/30-concurrency/xxx-concurrent-downloader/fetch/httpget.go
2019-04-27 20:18:24 +03:00

32 lines
645 B
Go

package fetch
import (
"fmt"
"net/http"
"time"
)
// HTTPGet requests to a url with the specified timeout.
// And it returns the response with an error.
// The caller should drain and close the body or it will leak.
func HTTPGet(url string, timeout time.Duration) (*http.Response, error) {
req, err := http.NewRequest("GET", url, nil)
req.Close = true
if err != nil {
return nil, err
}
c := &http.Client{Timeout: timeout}
resp, err := c.Do(req)
if err != nil {
return nil, err
}
// checkout for the bad urls
if s := resp.StatusCode; s < 200 || s > 299 {
return resp, fmt.Errorf("bad status: %d", s)
}
return resp, nil
}