Storing nested objects in redis sample code which you can use to play around in python and redis.

storing_nested_objects_in_redis.py

import redis  # install redis via pip > `python -m pip install redis`
import json

# Instantiate redis connection with your local redis instance.
redis_connection = redis.StrictRedis(host="localhost", port=int(6379),
                                     decode_responses=True)

"""
Caching simple object (flat and one dimentional object) as redis hash.
"""
dict_object = {"firstname": "John", "lastname": "Doe"}
type(dict_object)  # <class 'dict'>
app.redis_connection.hmset("your_unique_key", dict_object)  # cache dict_object as redis hash
cached_data = app.redis_connection.hgetall("your_unique_key")  # fetch cached data (hash) from redis 
type(cached_data)  # <class 'dict'>


"""
Caching nested object as redis hash.
"""
dict_object = {
               "name": "John Doe",
               "social_media_accounts": ["facebook", "twitter", "Instagram"],
               "language_proficiency": {
                           "Python": "9/10", 
                           "Javascript": "7/10",
                           "Ruby": "8/10"
                 }
              }

type(dict_object)  # <class 'dict'>
type(dict_object["social_media_accounts"])  # <class 'list'>
type(dict_object["language_proficiency"])  # <class 'dict'>
app.redis_connection.hmset("your_unique_key", dict_object)  # cache dict_object as redis hash
cached_data = app.redis_connection.hgetall("your_unique_key")  # # fetch cached data (hash) from redis 
type(cached_data)  # dict
type(cached_data["social_media_accounts"])  # <class 'str'>
type(cached_data["language_proficiency"])  # <class 'str'>


"""
Caching nested object as redis string.
"""
dict_object = {
               "name": "John Doe",
               "social_media_accounts": ["facebook", "twitter", "Instagram"],
               "language_proficiency": {
                           "Python": "9/10", 
                           "Javascript": "7/10",
                           "Ruby": "8/10"
                 }
              }
stringified_dict_obj = json.dumps(dict_object)  # convert your dict object to string

type(stringified_dict_obj)  # <class 'str'>
app.redis_connection.set("your_unique_key", stringified_dict_obj)  # cache stringified dict_object
cached_data = app.redis_connection.get("your_unique_key")  # fetch cached data (string) from redis 
type(cached_data)  # <class 'str'>

cached_data_as_dict = json.loads(cached_data)  # convert your string cached data to object(dict/JSON)
type(cached_data_as_dict)  # <class 'dict'>
type(cached_data_as_dict["social_media_accounts"])  # <class 'list'>
type(cached_data_as_dict["language_proficiency"])  # <class 'dict'>

which redis version are you using for this gist?

I am getting error in app.redis_connection.. Can you please tell me what is app