Resoted avatars.

src/snek/view/avatar.py

@@ -51,19 +51,25 @@ class AvatarView(BaseView):
 
     async def get_animal(self):
         uid = self.request.match_info.get("uid")
+        if uid == "unique":
+            uid = str(uuid.uuid4())
+        key = "avatar_animal_" + uid
+
+        avatar = await self.app.get(key)
+        if avatar:
+            return web.Response(text=avatar, content_type="image/svg+xml")
+
         while True:
             try:
-                return web.Response(text=self._get(uid), content_type="image/svg+xml")
+                avatar = generate_avatar_with_options(self.request.query)
+                await self.app.set(key, avatar)
+                return web.Response(text=avatar, content_type="image/svg+xml")
             except Exception as e:
                 pass
 
     
     def _get(self, uid):
-        if uid in self.avatars:
-            return self.avatars[uid]
-
         avatar = generate_avatar_with_options(self.request.query)
-        self.avatars[uid] = avatar
         return avatar
 
     async def get_default(self):