remove json stringify from caches examples

tests/examples/helpers/twolevel_cache.py

@@ -1,5 +1,4 @@
 import asyncio
-import json
 from .memory_cache import MemoryCache
 
 # 2 LEVEL CACHE (Redis to share amoung worker, Memory to be much faster)
@@ -50,10 +49,10 @@ class TwoLevelCache:
                 #always check cache first
                 cached = self.get(key)
                 if cached != None:
-                    return json.loads(cached)
+                    return cached
                 result = await executor(*args)
                 if result != None:
-                    self.set(key, json.dumps(result))
+                    self.set(key, result)
             except Exception as err:
                 # the lock wasn't acquired
                 pass
@@ -67,5 +66,5 @@ class TwoLevelCache:
             if result == None:
                 cache = self.get(key)
                 if cache != None:
-                    return json.loads(cache)
+                    return cache
             return result

tests/examples/http_request_cache.py

@@ -2,7 +2,6 @@ from socketify import App
 import redis
 import aiohttp
 import asyncio
-import json
 from helpers.twolevel_cache import TwoLevelCache
 
 #create redis poll + connections
@@ -20,13 +19,17 @@ async def get_pokemon(number):
     async with aiohttp.ClientSession() as session:
         async with session.get(f'https://pokeapi.co/api/v2/pokemon/{number}') as response:
             pokemon = await response.text()
-            return json.loads(pokemon)
+            #cache only works with strings/bytes/buffer
+            #we will not change nothing here so no needs to parse json
+            return pokemon
 
 async def get_original_pokemons():
     async with aiohttp.ClientSession() as session:
         async with session.get(f'https://pokeapi.co/api/v2/pokemon?limit=151') as response:
+            #cache only works with strings/bytes/buffer 
+            #we will not change nothing here so no needs to parse json
             pokemons = await response.text()
-            return json.loads(pokemons)
+            return pokemons
 
 
 ###