app.py

app.py

import os

import pandas as pd
from flask import Flask
from flask import abort
from flask import request
from flask_cors import CORS
from flask import jsonify, make_response

app = Flask(__name__, template_folder="templates")


@app.route('/price')
def portfolio():
    ticker = request.args.get('ticker')

    if ticker is None:
        app.logger.info('tickers not set')
        abort(400)
    path = '{}/data/{}.csv'.format(os.path.dirname(os.path.realpath(__file__)), ticker)
    df = pd.read_csv(path, index_col='Date', parse_dates=True, usecols=['Date', 'Close'],
                                  na_values=['nan'])

    port_series = []
    for index, row in df.iterrows():
        port_series.append({'name': index.strftime("%Y-%m-%d"), 'value': df.loc[index, 'Close']})

    resp = make_response(jsonify([{'name': ticker, 'series': port_series}]), 200)
    resp.headers['Access-Control-Allow-Origin'] = '*'
    return resp


if __name__ == '__main__':
    CORS(app)
    app.run(debug=True)