func processResponse()

in commands/api/api.go [295:353]
51 lines of code
18 McCabe index (conditional complexity)

func processResponse(resp *http.Response, opts *ApiOptions, headersOutputStream io.Writer) (endCursor string, err error) {
	if opts.ShowResponseHeaders {
		fmt.Fprintln(headersOutputStream, resp.Proto, resp.Status)
		printHeaders(headersOutputStream, resp.Header, opts.IO.ColorEnabled())
		fmt.Fprint(headersOutputStream, "\r\n")
	}

	if resp.StatusCode == http.StatusNoContent {
		return
	}
	var responseBody io.Reader = resp.Body

	isJSON, _ := regexp.MatchString(`[/+]json(;|$)`, resp.Header.Get("Content-Type"))

	var serverError string
	if isJSON && (opts.RequestPath == "graphql" || resp.StatusCode >= http.StatusBadRequest) {
		responseBody, serverError, err = parseErrorResponse(responseBody, resp.StatusCode)
		if err != nil {
			return
		}
	}

	var bodyCopy *bytes.Buffer
	isGraphQLPaginate := isJSON && resp.StatusCode == http.StatusOK && opts.Paginate && opts.RequestPath == "graphql"
	if isGraphQLPaginate {
		bodyCopy = &bytes.Buffer{}
		responseBody = io.TeeReader(responseBody, bodyCopy)
	}

	if isJSON && opts.IO.ColorEnabled() {
		out := &bytes.Buffer{}
		_, err = io.Copy(out, responseBody)
		if err == nil {
			result := jsonPretty.Color(jsonPretty.Pretty(out.Bytes()), nil)
			_, err = fmt.Fprintln(opts.IO.StdOut, string(result))
		}
	} else {
		_, err = io.Copy(opts.IO.StdOut, responseBody)
	}
	if err != nil {
		return
	}

	if serverError != "" {
		fmt.Fprintf(opts.IO.StdErr, "glab: %s\n", serverError)
		err = cmdutils.SilentError
		return
	} else if resp.StatusCode > 299 {
		fmt.Fprintf(opts.IO.StdErr, "glab: HTTP %d\n", resp.StatusCode)
		err = cmdutils.SilentError
		return
	}

	if isGraphQLPaginate {
		endCursor = findEndCursor(bodyCopy)
	}

	return
}