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import requests
from datetime import date
import time
import json

import pandas as pd
import os

from flask import Flask
from flask_caching import Cache
from flask import request

config = {
    "CACHE_TYPE": "SimpleCache",  # Flask-Caching related configs
    "CACHE_DEFAULT_TIMEOUT": 0,
}

app = Flask(__name__)
# tell Flask to use the above defined config
app.config.from_mapping(config)
cache = Cache(app)

@app.route("/api")
@cache.cached(timeout=0)
def index():
    # https://www.nseindia.com/api/historical/cm/equity?symbol=IEX&series=[%22EQ%22]&from=25-04-2022&to=25-05-2022
    ticker = request.args.get( 'ticker', None)
    start = request.args.get( 'start', None) #25-04-2022
    end = request.args.get( 'end', None) #25-05-2022
    s = requests.Session()
    # headers =   {'user-agent':'Mozilla/5.0 (Wind1ows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36'}
    headers =   {'Host':'www.nseindia.com', 'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:82.0) Gecko/20100101 Firefox/82.0','Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8', 'Accept-Language':'en-US,en;q=0.5', 'Accept-Encoding':'gzip, deflate, br','DNT':'1', 'Connection':'keep-alive', 'Upgrade-Insecure-Requests':'1','Pragma':'no-cache','Cache-Control':'no-cache',  }
    url = 'https://www.nseindia.com/'
    step = s.get(url,headers=headers)
    api_url = f"https://www.nseindia.com/api/historical/cm/equity?symbol={ticker}&series=[%22EQ%22]&from={start}&to={end}"
    result = s.get(api_url,headers=headers).json()
    return result