@api.route('/currencyData')
class Currency(Resource):
    def get(self):
        lastData = CurrencyData.query.order_by(-CurrencyData.id).first()
        return lastData #json

    @api.marshal_with(CurrencyData, envelope='resource')
    def put(self):
        if request.form:
            try:
                print(request.form)
                c = CurrencyData(eur=request.form.get("eur"), usd=request.form.get("usd"), jpy=request.form.get("jpy"), gbp=request.form.get("gbp"), dataDateTime=date.today())
                print("Pobrane dane: ", c)
                db.session.add(c)
                db.session.commit()

                return c #pomyślna operacja
            except Exception as e:
                print("Failed to add new data: ", e)
                return 500 #błąd serwera
        return 400 #jakiś błąd użytkownika