Method Attachment

context.go:449–451

Attachment sends a response as attachment, prompting client to save the file. for issue #39

(file, name string)

// Attachment sends a response as attachment, prompting client to save the file.
// for issue #39
func (ctx *HttpContext) Attachment(file, name string) (err error) {
	return ctx.contentDisposition(file, name, "attachment")
}

// Inline sends a response as inline, opening the file in the browser.
// if file not exists, response 404