support url /grid/square/themeId/string (2cfffcf6) · Commits · blackheaven / tinygraphs

app-backend/main.go

+1 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ func main() {

		r.HandleFunc("/grid/?", grid.H6X6)
		r.HandleFunc("/grid/[0-8]/?", grid.Color)
		r.HandleFunc("/grid/square/[0-8]/[a-zA-Z0-9]+/?", grid.SquareColor)
		r.HandleFunc("/grid/square/[a-zA-Z0-9]+/?", grid.Square)

		r.HandleFunc("/grid/random/?", grid.Random)

+23 −0

Original line number	Diff line number	Diff line
		@@ -31,3 +31,26 @@ func Square(w http.ResponseWriter, r *http.Request) {
		write.Image(w, &img)
		}
		}

		// gridColorHandler is the handler for /grid/square/[0-8]/[a-zA-Z0-9]+/?
		// build a 6x6 grid with alternate colors based on the number passed in the url
		func SquareColor(w http.ResponseWriter, r *http.Request) {

		if colorId, err := misc.PermalinkID(r, 3); err != nil {
		log.Printf("error when extracting permalink id: %v", err)
		} else {
		if id, err1 := misc.PermalinkString(r, 4); err1 == nil {
		m := image.NewRGBA(image.Rect(0, 0, 240, 240))
		colorMap := colors.MapOfColorPatterns()
		h := md5.New()
		io.WriteString(h, id)
		log.Printf("md5: %x", h.Sum(nil))
		key := fmt.Sprintf("%x", h.Sum(nil)[:])
		draw.Square(m, key, colorMap[int(colorId)][0], colorMap[int(colorId)][1])
		var img image.Image = m
		write.Image(w, &img)
		} else {
		log.Printf("error when extracting permalink string: %v", err)
		}
		}
		}