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36 lines
948 B
Python
36 lines
948 B
Python
3 years ago
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from json import loads as json_loads
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from json import dumps as json_dumps
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from datetime import timedelta
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from redis import Redis
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from app.library.market import get_market_data
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from app import config
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class Cache(object):
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def __init__(self):
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self.redis = Redis(host=config.REDIS_HOST, port=config.REDIS_PORT)
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def store_data(self, item_name, expiration_minutes, data):
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self.redis.setex(
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item_name,
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timedelta(minutes=expiration_minutes),
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value=data
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)
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def get_coin_price(self, coin_name):
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key_name = f'{coin_name}_price'
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data = self.redis.get(key_name)
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if data:
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return json_loads(data)
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else:
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d = get_market_data(coin_name)
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data = {
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key_name: d['market_data']['current_price'],
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}
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self.store_data(key_name, 4, json_dumps(data))
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return data
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cache = Cache()
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