Алексей Черемисин

from flask import jsonify

# Begin AJAX requests
@cart.route("/api/total")
def total():
    count = 0
    if "cart" in session:
        cart = session.get("cart")
        l = [int(i) for i in redis.hvals(getCartKey(cart))]
        count = sum(l)
        logger.debug('cart %s : %d', cart, count)
    data = calculateItems()
    data.pop("products")
    return jsonify(dict(count=count, **data))

"""Creates a :class:`~flask.Response` with the JSON representation of
the given arguments with an `application/json` mimetype. The arguments
to this function are the same as to the :class:`dict` constructor.

Example usage::

from flask import jsonify

@app.route('/_get_current_user')
def get_current_user():
return jsonify(username=g.user.username,
email=g.user.email,
id=g.user.id)

This will send a JSON response like this to the browser::

{
"username": "admin",
"email": "admin@localhost",
"id": 42
}

For security reasons only objects are supported toplevel. For more
information about this, have a look at :ref:`json-security`.

This function's response will be pretty printed if it was not requested
with ``X-Requested-With: XMLHttpRequest`` to simplify debugging unless
the ``JSONIFY_PRETTYPRINT_REGULAR`` config parameter is set to false.

.. versionadded:: 0.2
"""