Method Render

engine.go:119–155

Render a JSON response.

(w io.Writer, v interface{})

// Render a JSON response.
func (j JSON) Render(w io.Writer, v interface{}) error {
	if j.StreamingJSON {
		return j.renderStreamingJSON(w, v)
	}

	var buf bytes.Buffer
	encoder := j.Encoder(&buf)
	encoder.SetEscapeHTML(!j.UnEscapeHTML)

	if j.Indent {
		encoder.SetIndent("", "  ")
	}

	if err := encoder.Encode(v); err != nil {
		return err
	}

	output := buf.Bytes()

	// JSON marshaled fine, write out the result.
	if hw, ok := w.(http.ResponseWriter); ok {
		j.Write(hw)
	}

	if len(j.Prefix) > 0 {
		_, _ = w.Write(j.Prefix)
	}

	// Remove the newline that json.Encode injects when not indenting the output.
	if !j.Indent {
		output = bytes.TrimSuffix(output, []byte("\n"))
	}

	_, _ = w.Write(output)

	return nil
}

func (j JSON) renderStreamingJSON(w io.Writer, v interface{}) error {
	if hw, ok := w.(http.ResponseWriter); ok {