func()

in opensearchapi/api.cat.indices.go [85:215]
104 lines of code
28 McCabe index (conditional complexity)

func (r CatIndicesRequest) Do(ctx context.Context, transport Transport) (*Response, error) {
	var (
		method string
		path   strings.Builder
		params map[string]string
	)

	method = "GET"

	path.Grow(1 + len("_cat") + 1 + len("indices") + 1 + len(strings.Join(r.Index, ",")))
	path.WriteString("/")
	path.WriteString("_cat")
	path.WriteString("/")
	path.WriteString("indices")
	if len(r.Index) > 0 {
		path.WriteString("/")
		path.WriteString(strings.Join(r.Index, ","))
	}

	params = make(map[string]string)

	if r.Bytes != "" {
		params["bytes"] = r.Bytes
	}

	if r.ExpandWildcards != "" {
		params["expand_wildcards"] = r.ExpandWildcards
	}

	if r.Format != "" {
		params["format"] = r.Format
	}

	if len(r.H) > 0 {
		params["h"] = strings.Join(r.H, ",")
	}

	if r.Health != "" {
		params["health"] = r.Health
	}

	if r.Help != nil {
		params["help"] = strconv.FormatBool(*r.Help)
	}

	if r.IncludeUnloadedSegments != nil {
		params["include_unloaded_segments"] = strconv.FormatBool(*r.IncludeUnloadedSegments)
	}

	if r.Local != nil {
		params["local"] = strconv.FormatBool(*r.Local)
	}

	if r.MasterTimeout != 0 {
		params["master_timeout"] = formatDuration(r.MasterTimeout)
	}

	if r.Pri != nil {
		params["pri"] = strconv.FormatBool(*r.Pri)
	}

	if len(r.S) > 0 {
		params["s"] = strings.Join(r.S, ",")
	}

	if r.Time != "" {
		params["time"] = r.Time
	}

	if r.V != nil {
		params["v"] = strconv.FormatBool(*r.V)
	}

	if r.Pretty {
		params["pretty"] = "true"
	}

	if r.Human {
		params["human"] = "true"
	}

	if r.ErrorTrace {
		params["error_trace"] = "true"
	}

	if len(r.FilterPath) > 0 {
		params["filter_path"] = strings.Join(r.FilterPath, ",")
	}

	req, err := newRequest(method, path.String(), nil)
	if err != nil {
		return nil, err
	}

	if len(params) > 0 {
		q := req.URL.Query()
		for k, v := range params {
			q.Set(k, v)
		}
		req.URL.RawQuery = q.Encode()
	}

	if len(r.Header) > 0 {
		if len(req.Header) == 0 {
			req.Header = r.Header
		} else {
			for k, vv := range r.Header {
				for _, v := range vv {
					req.Header.Add(k, v)
				}
			}
		}
	}

	if ctx != nil {
		req = req.WithContext(ctx)
	}

	res, err := transport.Perform(req)
	if err != nil {
		return nil, err
	}

	response := Response{
		StatusCode: res.StatusCode,
		Body:       res.Body,
		Header:     res.Header,
	}

	return &response, nil
}