Doc:
QR Doc
Basic use; https://chart.googleapis.com/chart?chs=250x250&cht=qr&chl=Ali+Şahan+Yalçın&choe=UTF-8
cht=qr (chart type/Required)
chs=widthXheight (Image size/Required)
chl=data (Your data/Required)
choe=output_encoding (UTF-8-Shift_JIS-ISO-8859-1/Optional)
Kaynak kodlara oluşturduğum github reposundan ulaşabilirsiniz.