// Call - make a REST call with context.
func (c *Client) Call(ctx context.Context, rpcMethod string, values url.Values, body io.Reader, length int64) (reply io.ReadCloser, err error) {
	return c.CallWithHTTPMethod(ctx, http.MethodPost, rpcMethod, values, body, length)
}

// Close closes all idle connections of the underlying http client
func (c *Client) Close() {
	atomic.StoreInt32(&c.connected, closed)
}

		} else {
			h.status.Store(statusOnline)
		}
	}()

	ctx, cancel := context.WithTimeout(ctx, timeout)
	defer cancel()

	req, err := http.NewRequestWithContext(ctx, http.MethodPost,
		h.Endpoint(), bytes.NewReader(payload))
	if err != nil {
		return fmt.Errorf("invalid configuration for '%s'; %v", h.Endpoint(), err)
	}
	if payloadType != "" {
		req.Header.Set(xhttp.ContentType, payloadType)

		return false
	}
	if req.Method == http.MethodGet && req.URL != nil {
		switch req.URL.Path {
		case grid.RoutePath, grid.RouteLockPath:
			return true
		}
	}

	return (req.Method == http.MethodPost || req.Method == http.MethodGet) &&
		strings.HasPrefix(req.URL.Path, minioReservedBucketPath+SlashSeparator)
}

// Check to allow access to the reserved "bucket" `/minio` for Admin
// API requests.

	if r.NotificationCfg.Endpoint == "" {
		return nil
	}

	ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
	defer cancel()

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, r.NotificationCfg.Endpoint, body)
	if err != nil {
		return err
	}

	if r.NotificationCfg.Token != "" {
		req.Header.Set("Authorization", r.NotificationCfg.Token)
	}

	mediaType, _, err := mime.ParseMediaType(r.Header.Get(xhttp.ContentType))
	if err != nil {
		return false
	}
	return mediaType == "multipart/form-data" && r.Method == http.MethodPost
}

// Verify if the request has AWS Streaming Signature Version '4'. This is only valid for 'PUT' operation.
func isRequestSignStreamingV4(r *http.Request) bool {

	if values == nil {
		values = make(url.Values)
	}
	values.Set(storageRESTDiskID, *client.diskID.Load())
	respBody, err := client.restClient.CallWithHTTPMethod(ctx, http.MethodPost, rpcMethod, values, body, length)
	if err != nil {
		return nil, toStorageErr(err)
	}
	return respBody, nil
}

// Stringer provides a canonicalized representation of network device.

	// fmt.Printf("login form url: %s\n", lastReq.URL.String())
	formData := url.Values{}
	formData.Set("login", username)
	formData.Set("password", password)
	req, err = http.NewRequestWithContext(ctx, http.MethodPost, lastReq.URL.String(), strings.NewReader(formData.Encode()))
	if err != nil {
		return "", fmt.Errorf("new request err (/login): %v", err)
	}
	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")

	}

	buf, err := json.Marshal(ri)
	if err != nil {
		return err
	}

	ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
	defer cancel()

	req, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint, bytes.NewReader(buf))
	if err != nil {
		return err
	}

	if token != "" {
		req.Header.Set("Authorization", token)
	}
	req.Header.Set("Content-Type", "application/json")