retry

Overview ¶

Package retry implements simple retry functionality.

For example to retry an HTTP request:

func Do(client *http.Client, req *http.Request) (rsp *http.Response, err error) {
    retry.Retry(
        retry.Count(5),
        retry.Backoff(time.Second, time.Second*30),
        func(i int) bool {
            if 0 < i {
                req.Body, err = req.GetBody()
                if nil != err {
                    return false
                }
            }
            rsp, err = client.Do(req)
            if nil != err {
                return false
            }
            if 500 <= rsp.StatusCode && nil != req.GetBody {
                rsp.Body.Close()
                return true
            }
            return false
        })

    return
}