flask_context_redis

A Flask extension for redis, support app context

Why use flask_context_redis

If using flask_redis, you may face this issue:

Imaging you are using app factory, you may write code like this

from flask import Flask
from config import config
from flask_redis import Redis
from yourmodels import User # use flask_sqlalchemy
...

redis = Redis()

def create_app(config_name):
    app = Flask(__name__)
    ...
    redis.init_app(app)
    return app

You may have multipe app, just like me

cn_app = create_app('CN')
en_app = create_app('EN')

You may have crontab tasks, to update data from redis to mysql. You want to write them in one script, it's easier to maintain than separate them.

with cn_app.app_context():
    User.update()
with en_app.app_context():
    User.update()

And you will find, both cn_app and en_app will use redis connection in config 'EN' Due to flask_redis dose not support app_context(although flask_sqlalchemy does), it will use the last config.

So just change this line

from flask_redis import Redis

to

from flask_context_redis import Redis

##Configuration

Your configuration should be declared within your Flask config. Set the URL of your database like this:

REDIS_URL = "redis://redis.domain:6379/0"
# Default Value
# REDIS_URL = 'redis://localhost:6379/0'