func()

in opensearchapi/api.nodes.stats.go [83:205]

• 100 lines of code
• 26 McCabe index (conditional complexity)

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

	method = "GET"

	path.Grow(1 + len("_nodes") + 1 + len(strings.Join(r.NodeID, ",")) + 1 + len("stats") + 1 + len(strings.Join(r.Metric, ",")) + 1 + len(strings.Join(r.IndexMetric, ",")))
	path.WriteString("/")
	path.WriteString("_nodes")
	if len(r.NodeID) > 0 {
		path.WriteString("/")
		path.WriteString(strings.Join(r.NodeID, ","))
	}
	path.WriteString("/")
	path.WriteString("stats")
	if len(r.Metric) > 0 {
		path.WriteString("/")
		path.WriteString(strings.Join(r.Metric, ","))
	}
	if len(r.IndexMetric) > 0 {
		path.WriteString("/")
		path.WriteString(strings.Join(r.IndexMetric, ","))
	}

	params = make(map[string]string)

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

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

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

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

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

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

	if r.Level != "" {
		params["level"] = r.Level
	}

	if r.Timeout != 0 {
		params["timeout"] = formatDuration(r.Timeout)
	}

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

	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
}