func sendWebRequestSync(ctx context.Context, webhook *Webhook) error {
	webhookLog.Debug("Sending webhook", "url", webhook.Url)

	client := &http.Client{
		Timeout: time.Duration(10 * time.Second),
	}

	request, err := http.NewRequest(http.MethodPost, webhook.Url, bytes.NewReader([]byte(webhook.Body)))
	if webhook.User != "" && webhook.Password != "" {
		request.Header.Add("Authorization", util.GetBasicAuthHeader(webhook.User, webhook.Password))
	}

	if err != nil {
		return err
	}

	resp, err := ctxhttp.Do(ctx, client, request)
	if err != nil {
		return err
	}

	if resp.StatusCode/100 == 2 {
		return nil
	}

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return err
	}
	defer resp.Body.Close()

	webhookLog.Debug("Webhook failed", "statuscode", resp.Status, "body", string(body))
	return fmt.Errorf("Webhook response status %v", resp.Status)
}

// Endpoint returns a usable endpoint that will invoke the RPC specified by
// the client.
func (c Client) Endpoint() endpoint.Endpoint {
	return func(ctx context.Context, request interface{}) (interface{}, error) {
		ctx, cancel := context.WithCancel(ctx)
		defer cancel()

		req, err := http.NewRequest(c.method, c.tgt.String(), nil)
		if err != nil {
			return nil, TransportError{DomainNewRequest, err}
		}

		if err = c.enc(req, request); err != nil {
			return nil, TransportError{DomainEncode, err}
		}

		for _, f := range c.before {
			ctx = f(ctx, req)
		}

		resp, err := ctxhttp.Do(ctx, c.client, req)
		if err != nil {
			return nil, TransportError{DomainDo, err}
		}
		if !c.bufferedStream {
			defer resp.Body.Close()
		}

		response, err := c.dec(resp)
		if err != nil {
			return nil, TransportError{DomainDecode, err}
		}

		return response, nil
	}
}

func (c *PagespeedapiRunpagespeedCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	params := make(url.Values)
	params.Set("alt", alt)
	params.Set("url", fmt.Sprintf("%v", c.url))
	if v, ok := c.opt_["filter_third_party_resources"]; ok {
		params.Set("filter_third_party_resources", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["locale"]; ok {
		params.Set("locale", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["rule"]; ok {
		params.Set("rule", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["screenshot"]; ok {
		params.Set("screenshot", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["strategy"]; ok {
		params.Set("strategy", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "runPagespeed")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("GET", urls, body)
	googleapi.SetOpaque(req.URL)
	req.Header.Set("User-Agent", c.s.userAgent())
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

func (c *ProjectsPatchTracesCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	body, err := googleapi.WithoutDataWrapper.JSONReader(c.traces)
	if err != nil {
		return nil, err
	}
	ctype := "application/json"
	params := make(url.Values)
	params.Set("alt", alt)
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "v1/projects/{projectId}/traces")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("PATCH", urls, body)
	googleapi.Expand(req.URL, map[string]string{
		"projectId": c.projectId,
	})
	req.Header.Set("Content-Type", ctype)
	req.Header.Set("User-Agent", c.s.userAgent())
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

func (c *TaskqueuesGetCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	params := make(url.Values)
	params.Set("alt", alt)
	if v, ok := c.opt_["getStats"]; ok {
		params.Set("getStats", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "{project}/taskqueues/{taskqueue}")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("GET", urls, body)
	googleapi.Expand(req.URL, map[string]string{
		"project":   c.project,
		"taskqueue": c.taskqueue,
	})
	req.Header.Set("User-Agent", c.s.userAgent())
	if v, ok := c.opt_["ifNoneMatch"]; ok {
		req.Header.Set("If-None-Match", fmt.Sprintf("%v", v))
	}
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

func (c *TranslationsListCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	params := make(url.Values)
	params.Set("alt", alt)
	params.Set("target", fmt.Sprintf("%v", c.target))
	for _, v := range c.q {
		params.Add("q", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["cid"]; ok {
		params.Set("cid", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["format"]; ok {
		params.Set("format", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["source"]; ok {
		params.Set("source", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "v2")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("GET", urls, body)
	googleapi.SetOpaque(req.URL)
	req.Header.Set("User-Agent", c.s.userAgent())
	if v, ok := c.opt_["ifNoneMatch"]; ok {
		req.Header.Set("If-None-Match", fmt.Sprintf("%v", v))
	}
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

func (c *TrainingInsertCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	body, err := googleapi.WithoutDataWrapper.JSONReader(c.training)
	if err != nil {
		return nil, err
	}
	ctype := "application/json"
	params := make(url.Values)
	params.Set("alt", alt)
	if v, ok := c.opt_["data"]; ok {
		params.Set("data", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "training")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("POST", urls, body)
	googleapi.SetOpaque(req.URL)
	req.Header.Set("Content-Type", ctype)
	req.Header.Set("User-Agent", c.s.userAgent())
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

func (c *HttpCommand) Endpoint() endpoint.Endpoint {
	return func(ctx context.Context, req interface{}) (interface{}, error) {
		ctx, cancel := context.WithCancel(ctx)
		defer cancel()

		u, err := url.Parse(c.Url)
		if err != nil {
			return nil, fmt.Errorf("URL: %v", err)
		}

		if c.Method == "GET" {
			q := u.Query()
			args, ok := req.([]*command.Argument)
			if !ok {
				return nil, fmt.Errorf("TypeError: The request is not argument")
			}

			if len(q) <= 0 {
				for _, arg := range args {
					q.Set(arg.Name, arg.Value)
				}
			} else {
				//Reverse query values
				//Filter query values e.g. message=<messageid>&user=<userid>
				kv := make(map[string]string)
				for key, val := range q {
					if strings.HasPrefix(val[0], "<") && strings.HasSuffix(val[0], ">") {
						kv[val[0][1:len(val[0])-1]] = key
					}
				}
				for _, arg := range args {
					param, ok := kv[arg.Name]
					if !ok {
						continue
					}
					q.Set(param, arg.Value)
				}
			}
			u.RawQuery = q.Encode()
		} else if c.Method == "POST" {
			//TODO: How to represent POST form
			//For now, There is same scheme for the command argument in the POST method

		}

		request, err := http.NewRequest(c.Method, u.String(), nil)
		if err != nil {
			return nil, fmt.Errorf("NewRequest: %v", err)
		}

		response, err := ctxhttp.Do(ctx, c.client, request)
		if err != nil {
			return nil, fmt.Errorf("Do: %v", err)
		}
		//TODO:
		//defer func() { _ = response.Body.Close() }()

		return response, nil
	}
}

func (m *Client) GetReal(ctx context.Context) (string, error) {
	urlStr := m.getRealURL()
	req, err := http.NewRequest("GET", urlStr, nil)
	if err != nil {
		return "", err
	}
	req.Header.Add("Authorization", m.AuthHeader)

	resp, err := ctxhttp.Do(ctx, m.client, req)
	if err != nil {
		return "", err
	}
	defer resp.Body.Close()

	if resp.StatusCode == http.StatusOK {
		b, err := ioutil.ReadAll(resp.Body)
		return string(b), err
	}

	scope := ErrorMethodScope{
		Method: "getReal",
		URL:    urlStr,
	}
	return "", newMethodError(scope, resp)
}

func (c *JobsReportsGetCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	params := make(url.Values)
	params.Set("alt", alt)
	if v, ok := c.opt_["onBehalfOfContentOwner"]; ok {
		params.Set("onBehalfOfContentOwner", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "v1/jobs/{jobId}/reports/{reportId}")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("GET", urls, body)
	googleapi.Expand(req.URL, map[string]string{
		"jobId":    c.jobId,
		"reportId": c.reportId,
	})
	req.Header.Set("User-Agent", c.s.userAgent())
	if v, ok := c.opt_["ifNoneMatch"]; ok {
		req.Header.Set("If-None-Match", fmt.Sprintf("%v", v))
	}
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

func (c *ManagementWebpropertiesListCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	params := make(url.Values)
	params.Set("alt", alt)
	if v, ok := c.opt_["max-results"]; ok {
		params.Set("max-results", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["start-index"]; ok {
		params.Set("start-index", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "management/accounts/{accountId}/webproperties")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("GET", urls, body)
	googleapi.Expand(req.URL, map[string]string{
		"accountId": c.accountId,
	})
	req.Header.Set("User-Agent", c.s.userAgent())
	if v, ok := c.opt_["ifNoneMatch"]; ok {
		req.Header.Set("If-None-Match", fmt.Sprintf("%v", v))
	}
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

// doUploadRequest performs a single HTTP request to upload data.
// off specifies the offset in rx.Media from which data is drawn.
// size is the number of bytes in data.
// final specifies whether data is the final chunk to be uploaded.
func (rx *ResumableUpload) doUploadRequest(ctx context.Context, data io.Reader, off, size int64, final bool) (*http.Response, error) {
	req, err := http.NewRequest("POST", rx.URI, data)
	if err != nil {
		return nil, err
	}

	req.ContentLength = size
	var contentRange string
	if final {
		if size == 0 {
			contentRange = fmt.Sprintf("bytes */%v", off)
		} else {
			contentRange = fmt.Sprintf("bytes %v-%v/%v", off, off+size-1, off+size)
		}
	} else {
		contentRange = fmt.Sprintf("bytes %v-%v/*", off, off+size-1)
	}
	req.Header.Set("Content-Range", contentRange)
	req.Header.Set("Content-Type", rx.MediaType)
	req.Header.Set("User-Agent", rx.UserAgent)
	fn := Hook(ctx, req)
	resp, err := ctxhttp.Do(ctx, rx.Client, req)
	fn(resp)
	return resp, err

}

// Upload stores provided data to a specified namespace. Returns information about upload.
func (m *Client) Upload(ctx context.Context, namespace string, filename string, size int64, body io.Reader) (*UploadInfo, error) {
	urlStr := m.uploadURL(namespace, filename)
	req, err := http.NewRequest("POST", urlStr, body)
	if err != nil {
		return nil, err
	}
	req.Header.Add("Authorization", m.AuthHeader)
	if req.ContentLength <= 0 {
		req.ContentLength = size
	}

	resp, err := ctxhttp.Do(ctx, m.client, req)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		scope := ErrorMethodScope{
			Method: "upload",
			URL:    urlStr,
		}
		return nil, newMethodError(scope, resp)
	}

	var info UploadInfo
	if err := decodeXML(&info, resp.Body); err != nil {
		return nil, err
	}

	return &info, nil
}

func (c *MediaUploadCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	body, err := googleapi.WithoutDataWrapper.JSONReader(c.media)
	if err != nil {
		return nil, err
	}
	ctype := "application/json"
	c.urlParams_.Set("alt", alt)
	urls := googleapi.ResolveRelative(c.s.BasePath, "v1/media/{+resourceName}")
	if c.media_ != nil || c.resumable_ != nil {
		urls = strings.Replace(urls, "https://www.googleapis.com/", "https://www.googleapis.com/upload/", 1)
		c.urlParams_.Set("uploadType", c.protocol_)
	}
	urls += "?" + c.urlParams_.Encode()
	if c.protocol_ != "resumable" && c.media_ != nil {
		cancel := gensupport.IncludeMedia(c.media_, &body, &ctype)
		defer cancel()
	}
	req, _ := http.NewRequest("POST", urls, body)
	googleapi.Expand(req.URL, map[string]string{
		"resourceName": c.resourceName,
	})
	if c.protocol_ == "resumable" {
		if c.mediaType_ == "" {
			c.mediaType_ = gensupport.DetectMediaType(c.resumable_)
		}
		req.Header.Set("X-Upload-Content-Type", c.mediaType_)
	}
	req.Header.Set("Content-Type", ctype)
	req.Header.Set("User-Agent", c.s.userAgent())
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

// Get reads a given key from storage and return ReadCloser to body.
// User is responsible for closing returned ReadCloser.
func (m *Client) Get(ctx context.Context, namespace, key string, Range ...uint64) (io.ReadCloser, error) {
	urlStr := m.ReadURL(namespace, key)
	req, err := http.NewRequest("GET", urlStr, nil)
	if err != nil {
		return nil, err
	}
	req.Header.Add("Authorization", m.AuthHeader)

	switch len(Range) {
	case 0:
	case 1:
		req.Header.Add("Range", fmt.Sprintf("bytes=%d-", Range[0]))
	case 2:
		req.Header.Add("Range", fmt.Sprintf("bytes=%d-%d", Range[0], Range[1]))
	default:
		return nil, fmt.Errorf("Invalid range")
	}

	resp, err := ctxhttp.Do(ctx, m.client, req)
	if err != nil {
		return nil, err
	}

	if resp.StatusCode == http.StatusOK || resp.StatusCode == http.StatusPartialContent {
		return resp.Body, nil
	}

	defer resp.Body.Close()
	scope := ErrorMethodScope{
		Method: "get",
		URL:    urlStr,
	}
	return nil, newMethodError(scope, resp)
}

// DownloadInfo retrieves an information about direct link to a file,
// if it's available.
func (m *Client) DownloadInfo(ctx context.Context, namespace, key string) (*DownloadInfo, error) {
	urlStr := m.downloadinfoURL(namespace, key)

	req, err := http.NewRequest("GET", urlStr, nil)
	if err != nil {
		return nil, err
	}
	req.Header.Add("Authorization", m.AuthHeader)

	resp, err := ctxhttp.Do(ctx, m.client, req)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()

	if resp.StatusCode != http.StatusOK {
		scope := ErrorMethodScope{
			Method: "downloadInfo",
			URL:    urlStr,
		}
		return nil, newMethodError(scope, resp)
	}

	var info DownloadInfo
	if err := decodeXML(&info, resp.Body); err != nil {
		return nil, err
	}

	return &info, nil
}

func (c *TransfersListCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	params := make(url.Values)
	params.Set("alt", alt)
	if v, ok := c.opt_["customerId"]; ok {
		params.Set("customerId", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["maxResults"]; ok {
		params.Set("maxResults", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["newOwnerUserId"]; ok {
		params.Set("newOwnerUserId", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["oldOwnerUserId"]; ok {
		params.Set("oldOwnerUserId", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["pageToken"]; ok {
		params.Set("pageToken", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["status"]; ok {
		params.Set("status", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "transfers")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("GET", urls, body)
	googleapi.SetOpaque(req.URL)
	req.Header.Set("User-Agent", c.s.userAgent())
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

func (c *httpClient) do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
	resp, err := ctxhttp.Do(ctx, &http.Client{Transport: c.transport}, req)

	defer func() {
		if resp != nil {
			resp.Body.Close()
		}
	}()

	if err != nil {
		return nil, nil, err
	}

	var body []byte
	done := make(chan struct{})
	go func() {
		body, err = ioutil.ReadAll(resp.Body)
		close(done)
	}()

	select {
	case <-ctx.Done():
		err = resp.Body.Close()
		<-done
		if err == nil {
			err = ctx.Err()
		}
	case <-done:
	}

	return resp, body, err
}

func (c *StatesUpdateCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	body, err := googleapi.WithoutDataWrapper.JSONReader(c.updaterequest)
	if err != nil {
		return nil, err
	}
	ctype := "application/json"
	params := make(url.Values)
	params.Set("alt", alt)
	if v, ok := c.opt_["currentStateVersion"]; ok {
		params.Set("currentStateVersion", fmt.Sprintf("%v", v))
	}
	if v, ok := c.opt_["fields"]; ok {
		params.Set("fields", fmt.Sprintf("%v", v))
	}
	urls := googleapi.ResolveRelative(c.s.BasePath, "states/{stateKey}")
	urls += "?" + params.Encode()
	req, _ := http.NewRequest("PUT", urls, body)
	googleapi.Expand(req.URL, map[string]string{
		"stateKey": strconv.FormatInt(c.stateKey, 10),
	})
	req.Header.Set("Content-Type", ctype)
	req.Header.Set("User-Agent", c.s.userAgent())
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}

func (c *ArchiveInsertCall) doRequest(alt string) (*http.Response, error) {
	var body io.Reader = nil
	c.urlParams_.Set("alt", alt)
	urls := googleapi.ResolveRelative(c.s.BasePath, "{groupId}/archive")
	if c.media_ != nil || c.resumableBuffer_ != nil {
		urls = strings.Replace(urls, "https://www.googleapis.com/", "https://www.googleapis.com/upload/", 1)
		protocol := "multipart"
		if c.resumableBuffer_ != nil {
			protocol = "resumable"
		}
		c.urlParams_.Set("uploadType", protocol)
	}
	urls += "?" + c.urlParams_.Encode()
	body = new(bytes.Buffer)
	ctype := "application/json"
	if c.media_ != nil {
		var combined io.ReadCloser
		combined, ctype = gensupport.CombineBodyMedia(body, ctype, c.media_, c.mediaType_)
		defer combined.Close()
		body = combined
	}
	req, _ := http.NewRequest("POST", urls, body)
	googleapi.Expand(req.URL, map[string]string{
		"groupId": c.groupId,
	})
	if c.resumableBuffer_ != nil {
		req.Header.Set("X-Upload-Content-Type", c.mediaType_)
	}
	req.Header.Set("Content-Type", ctype)
	req.Header.Set("User-Agent", c.s.userAgent())
	if c.ctx_ != nil {
		return ctxhttp.Do(c.ctx_, c.s.client, req)
	}
	return c.s.client.Do(req)
}