app.py

from flask import Flask, render_template, request
import stripe
import os

app = Flask(__name__)

stripe_keys = {
    "secret_key": os.environ["STRIPE_SECRET_KEY"],
    "publishable_key": os.environ["STRIPE_PUBLISHABLE_KEY"],
}

stripe.api_key = stripe_keys["secret_key"]

@app.route('/')
def checkout():
    return render_template('checkout.html',key=stripe_keys['publishable_key'])

@app.route('/charge', methods=['POST'])
def charge():
    # Amount in cents
    amount = 1000

    customer = stripe.Customer.create(
        email='customer@example.com',
        source=request.form['stripeToken']
    )

    charge = stripe.Charge.create(
        customer=customer.id,
        amount=amount,
        currency='usd',
        description='Flask Charge'
    )

    return render_template('charge.html', amount=amount)


    if __name__ == '__main__':
        app.run()