application.py

import json
import requests
import pymongo
import pandas as pd
from flask import Flask
from flask import request
from bs4 import BeautifulSoup
from pymongo import MongoClient

app = Flask(__name__)


def get_db():
    client = MongoClient('localhost:27017')
    db = client.cmcdata
    return db

@app.route('/')
def status():
    return json.dumps({"status":"Success"})

@app.route('/get_data')
def get_data():
    coin = request.args.get('coin_name')
    auth_key = request.args.get('auth_key')
    db = get_db()
    if auth_key != "fdsrtw435s6af8dsd9sa":
        return "{ACCESS DENIED:Authentication Failed}"
    if coin:
        coin = coin.split(",")
        data = db.cryptodata.find({'name':coin[0]})
    else:
        data = db.cryptodata.find({})
    ret_data = []
    for hist_data in data:
        for dts in hist_data['data']:
            ret_data.append(dts)
    return json.dumps(ret_data)


@app.route('/get_coin_list')
def get_coin_list():
    db = get_db()
    data = db.cryptodata.find({})
    coins = {}
    coin_data = []
    for each in data:
        for cn in each['data']:
            try:
                coin_data.append({cn['org_name']: cn['ticker']})
            except Exception as e:
                pass

    coins["data"] = coin_data

    return json.dumps(coins)

@app.route('/get_coins')
def get_coins():
    url = "https://coinmarketcap.com/all/views/all/"
    html = requests.get(url).text
    soup = BeautifulSoup(html, 'lxml')
    table = soup.find_all('table')[0]
    df = pd.read_html(str(table))
    k = (df[0].to_json(orient='records'))
    data = json.loads(k)
    coin_list = []
    for rec in data:
        coin_list.append({"coin":rec['Name'], "ticker":rec['Symbol']})
    return json.dumps({"coins":coin_list})


if __name__ == '__main__':
    app.run(host="0.0.0.0", debug=True)