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app.py
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app.py
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from flask import Flask, render_template, request, jsonify
from tradingview_ta import *
import os
app = Flask(__name__)
file_dir='coinlist'
line_list = []
line_list1 = []
data = {}
element = {}
element.clear()
line_list.clear()
@app.route('/', methods=['GET', 'POST'])
def hours_store():
return render_template('index.html', Hourss=["4h","5m" ,"15m", "1h" , "1D", "1W", "1M"])
@app.route('/list', methods=['GET', 'POST'])
def scan():
element.clear()
line_list.clear()
hours = request.form.get("times")
bbw = request.form['bbw']
exchange= request.form['exchange']
striphours = hours.strip()
stripexchange = exchange.strip()
exchange_file = os.path.join(file_dir, f"{stripexchange}.txt")
with open(exchange_file) as file:
lines = file.read()
line = lines.split('\n')
exchange_screener_mapping = {
"all": "crypto",
"huobi": "crypto",
"kucoin": "crypto",
"coinbase": "crypto",
"gateio": "crypto",
"binance": "crypto",
"bitfinex": "crypto",
"bybit": "crypto",
"okx": "crypto",
"bist": "turkey",
"nasdaq": "america",
}
screener = exchange_screener_mapping.get(stripexchange, "crypto")
analysis = get_multiple_analysis(screener=screener, interval=striphours, symbols=line)
for key, value in analysis.items():
try:
if value != None:
open_price = value.indicators["open"]
close = value.indicators["close"]
change = ((close-open_price)/open_price)*100
macd = value.indicators["MACD.macd"]
rsi = value.indicators["RSI"]
sma = value.indicators["SMA20"]
ema20 = value.indicators["EMA20"]
ema50 = value.indicators["EMA50"]
ema200 = value.indicators["EMA200"]
lower = value.indicators["BB.lower"]
upper = value.indicators["BB.upper"]
BBW = (upper - lower) / sma
conditions = (
1 > BBW and BBW < float(bbw)
)
if BBW and ema50 and rsi:
if (conditions):
currency = key.split(":")
price = round(close, 4)
BBW = round(BBW, 4)
change = round(change, 3)
element[key] = [price, BBW, change]
except (TypeError):
print(key ," is not defined ")
except (ZeroDivisionError):
print(key," bbw value the is zero")
line_list.append(element)
return render_template('data.html', line_list=line_list, hours=hours, line_list1=line_list1, element=element)
@app.route('/getPrice', methods=['POST'])
def handle_list_request():
request_data = request.json
hours = request_data.get('hours')
symbol = request_data.get('symbol')
exchange = request_data.get('exchange')
scanForApi(hours, symbol, exchange)
return jsonify(element)
def scanForApi(hours, symbol, exchange):
element.clear()
striphours = hours.strip()
symbol_with_exchange = f"{exchange}:{symbol}"
if exchange == "kucoin":
analysis = get_multiple_analysis(screener="crypto", interval=striphours, symbols=[symbol_with_exchange])
elif exchange == "bist":
analysis = get_multiple_analysis(screener="turkey", interval=striphours, symbols=[symbol_with_exchange])
elif exchange == "nasdaq":
analysis = get_multiple_analysis(screener="america", interval=striphours, symbols=[symbol_with_exchange])
for key, value in analysis.items():
try:
if value is not None:
open_price = value.indicators["open"]
close = value.indicators["close"]
change = ((close - open_price) / open_price) * 100
price = round(close, 4)
change = round(change, 3)
element["name"] = key
element["current"] = price
element["change"] = change
element["open"] = open_price
element["close"] = close
except TypeError:
print(key, " is not defined ")
API_KEY = "c29d28e35cd02672bd295c4c5f52eccb"
def check_auth_header(request):
auth_header = request.headers.get('Authorization')
if auth_header==API_KEY:
return True
return False
@app.before_request
def before_request():
if request.endpoint != 'handle_list_request':
return
if not check_auth_header(request):
return jsonify({'error': 'Unauthorized access'}), 401
@app.errorhandler(404)
def pageNotFound(error):
return render_template('error.html')
if __name__ == '__main__':
app.run(host='0.0.0.0', port=int(os.environ.get('PORT', 5001)))