mirror of
https://git.wownero.com/wowlet/wowlet-backend.git
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42bb0c832e
- Move recurring tasks into their own class; inherits from `FeatherTask` - CCS proposals: Don't use API, it's broken - webcrawl instead until it is fixed. - Switch to hypercorn as the ASGI server, *with* support for multiple workers. You can now run feather-ws with, for example, `--workers 6`. See `Dockerfile`. - Introduce support for various coins under `BlockheightTask` - Introduce support for various Reddit communities under `RedditTask` - Introduced weightvoting whilst validating third-party RPC blockheights - where nodes are filtered based on what other nodes are commonly reporting. - Current blockheights are fetched from various block explorers and weightvoting is done to eliminate outliers under `BlockheightTask`. - Don't filter/remove bad nodes from the rpc_nodes list; correctly label them as disabled/bad nodes. - Multiple Feather instances (each for it's own coin) can now run on one machine, using only one Redis instance, as each coins has it's own Redis database index. - Configuration options inside `settings.py` can now be controlled via environment variables. - Better logging through custom log formatting and correct usage of `app.logger.*` - Fixed a bug where one task could overlap with itself if the previous one did not finish yet. This was particularly noticable inside the `RPCNodeCheckTask` where the high timeout (for Tor nodes) could cause the task to run *longer* than the recurring task interval. - Introduced a `docker-compose.yml` to combine the Feather container with Redis and Tor containers. - Blocking IO operations are now done via `aiofiles`
59 lines
2 KiB
Python
59 lines
2 KiB
Python
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright (c) 2020, The Monero Project.
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# Copyright (c) 2020, dsc@xmr.pm
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from typing import List, Union
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import settings
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from fapi.utils import httpget
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from fapi.tasks import FeatherTask
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class CryptoRatesTask(FeatherTask):
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def __init__(self, interval: int = 180):
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super(CryptoRatesTask, self).__init__(interval)
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self._cache_key = "crypto_rates"
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self._cache_expiry = self.interval * 10
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self._websocket_cmd = "crypto_rates"
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self._http_api_gecko = "https://api.coingecko.com/api/v3"
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async def task(self) -> Union[List[dict], None]:
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"""Fetch USD prices for various coins"""
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from fapi.factory import app
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url = f"{self._http_api_gecko}/coins/markets?vs_currency=usd"
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rates = await httpget(url, json=True)
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# normalize object, too many useless keys
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rates = [{
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"id": r["id"],
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"symbol": r["symbol"],
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"image": r["image"],
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"name": r["name"],
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"current_price": r["current_price"],
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"price_change_percentage_24h": r["price_change_percentage_24h"]
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} for r in rates]
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# additional coins as defined by `settings.CRYPTO_RATES_COINS_EXTRA`
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for coin, symbol in settings.CRYPTO_RATES_COINS_EXTRA.items():
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url = f"{self._http_api_gecko}/simple/price?ids={coin}&vs_currencies=usd"
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try:
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data = await httpget(url, json=True)
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if coin not in data or "usd" not in data[coin]:
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continue
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rates.append({
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"id": coin,
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"symbol": symbol,
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"image": "",
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"name": coin.capitalize(),
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"current_price": data[coin]["usd"],
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"price_change_percentage_24h": 0.0
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})
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except Exception as ex:
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app.logger.error(f"extra coin: {coin}; {ex}")
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return rates
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