5 Rendering To The Response

• renderPdf(Map args)
• renderGif(Map args)
• renderPng(Map args)
• renderJpeg(Map args)

Each of the methods is equivalent to…

«format»RenderingService.render(args + [controller: this], response)

All methods take all of the arguments that their respective service's render() method take, plus some extras.

Extra Render Arguments

All rendering methods take a Map argument that specifies which template to render and the model to use (in most cases).

The following map arguments are common to all rendering methods:

• filename (option) - sets the Content-Disposition header with attachment; filename="$filename"; (asking the browser to download the file with the given filename)
• contentType (optional) - the Content-Type header value (see Content Type Defaults below)

Default Content Types

The default content types are…

• application/pdf
• image/gif
• image/png
• image/jpeg

Large Files/Renders

See the section on caching and performance for some other arguments that can help with large renders.