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118 lines
3.9 KiB
Python
118 lines
3.9 KiB
Python
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 requests import get as r_get
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from flask import current_app
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from app.library.coingecko import get_market_data
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from app.library.monero import wallet
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from app.library.digitalocean import do
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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.CACHE_HOST, port=config.CACHE_PORT)
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def store_data(self, item_name, expiration_minutes, data):
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current_app.logger.info(f'MISS - {item_name} - {expiration_minutes} minutes')
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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_info(self, codename):
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key_name = f'node_{codename}_info'
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data = self.redis.get(key_name)
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if data:
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current_app.logger.info(f'HIT - {key_name}')
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return json_loads(data)
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else:
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try:
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dns = f'{codename}.node.{config.DO_DOMAIN}'
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url = f'http://{dns}:18081/get_info'
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r = r_get(url, timeout=6)
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data = r.json()
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self.store_data(key_name, 8, json_dumps(data))
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return data
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except:
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return {'error': 'true'}
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def get_transfers(self, account_idx):
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key_name = f'wallet_txes_{account_idx}'
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data = self.redis.get(key_name)
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if data:
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current_app.logger.info(f'HIT - {key_name}')
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return json_loads(data)
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else:
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txes = wallet.get_transfers(account_idx)
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self.store_data(key_name, 1, json_dumps(txes))
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return txes
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def get_balances(self, account_idx, atomic=True):
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if atomic:
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extra = '_atomic'
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else:
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extra = ''
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key_name = f'wallet_balances_{account_idx}{extra}'
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data = self.redis.get(key_name)
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if data:
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current_app.logger.info(f'HIT - {key_name}')
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return json_loads(data)
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else:
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balances = wallet.balances(account_idx, atomic)
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data = {'balance': balances[0], 'unlocked': balances[1]}
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self.store_data(key_name, 2, json_dumps(data))
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return data
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def show_droplet(self, droplet_id):
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if droplet_id is None:
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return None
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key_name = f'droplet_{droplet_id}'
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data = self.redis.get(key_name)
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if data:
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current_app.logger.info(f'HIT - {key_name}')
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return json_loads(data)
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else:
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droplet = do.show_droplet(droplet_id)
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self.store_data(key_name, 120, json_dumps(droplet))
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return droplet
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def show_volume(self, volume_id):
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key_name = f'volume_{volume_id}'
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data = self.redis.get(key_name)
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if data:
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current_app.logger.info(f'HIT - {key_name}')
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return json_loads(data)
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else:
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volume = do.show_volume(volume_id)
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self.store_data(key_name, 120, json_dumps(volume))
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return volume
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def get_coin_price(self, cur='usd'):
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key_name = f'xmr_price_{cur}'
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data = self.redis.get(key_name)
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if data:
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current_app.logger.info(f'HIT - {key_name}')
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return float(data.decode())
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else:
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d = get_market_data()
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amt = d['market_data']['current_price'][cur]
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self.store_data(key_name, 5, amt)
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return amt
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def get_transfer_data(self, subaddress_index):
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key_name = f'xmr_wallet_{subaddress_index}_txes'
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data = self.redis.get(key_name)
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if data:
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current_app.logger.info(f'HIT - {key_name}')
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return json_loads(data)
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else:
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wallet.get_transfers(subaddress_index)
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self.store_data(key_name, 2, json_dumps(data))
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return data
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cache = Cache()
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