chore: custom error

internal/handlers/restimage/resource.go

@@ -0,0 +1,26 @@
+package restimage
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/images"
+)
+
+type Handler struct {
+	img imageService
+}
+
+func New(mux *http.ServeMux, srv imageService) *Handler {
+	h := &Handler{
+		img: srv,
+	}
+
+	mux.HandleFunc("GET /images/{uid}", h.getImage)
+	return h
+}
+
+type imageService interface {
+	GetImage(ctx context.Context, uid string, options images.Options) (img io.Reader, mimeType string, err error)
+}