Imports github.com/makiuchi-d/gozxing github.com/makiuchi-d/gozxing/qrcode github.com/makiuchi-d/gozxing/qrcode/decoder github.com/yxuco/tgdb github.com/yxuco/tgdb/factory Standard library imports bytes encoding/json errors fmt hash/fnv image image/color image/png io/ioutil math math/rand net/http strconv strings time