Is there way to download file with prompting name ?

[shawnye]

I try c.File(fileName) , it does not provide prompting name when downloading, could you provide api such as c.File(fileName, promptName string) ?

As echo does:

// Attachment sends a response as attachment, prompting client to save the file.
Attachment(file string, promptName string) error

Thank you!

[shawnye]

my workaround:

downloadName := "test"+time.Now().Format("20060102150405") + ".csv"

	header := c.Writer.Header()
	header["Content-type"] = []string{"application/octet-stream"}
	header["Content-Disposition"] = []string{"attachment; filename= " + downloadName}

	file, err := os.Open(destFile)
	if err != nil {
		c.String(http.StatusOK, "%v", err)
		return
	}
	defer file.Close()

	io.Copy(c.Writer, file)

[thinkerou]

@shawnye please see #1304 use c.DataFromReader