shopify_flask.py

from flask import Flask, redirect, request, session, url_for
import os
import shopify
import uuid

app = Flask(__name__)

# This is the secret key for the Flask session - not to be confused with your
# API credentials from Shopify
app.config['SECRET_KEY'] = os.getenv('SESSION_KEY') or \
    'c8131b1554694e4d2cf639608c09aef4849411d336d0ff117c6814b8ff9973d7'

API_KEY='' # from your Shopify partner dashboard
SECRET_KEY='' # "   "     "       "       "

shopify.Session.setup(api_key=API_KEY, secret=SECRET_KEY)

# in-memory storage for Shopify session objects
# in a production application, you would likely want to use redis or memcached
session_repository = dict()

@app.before_request
def before_request():
    if request.endpoint != 'login':
        if 'shopify' in session and 'myshopify_domain' in session:
            if not session['shopify'] in session_repository:
                return redirect(url_for('login', shop=session['myshopify_domain']))
        else:
            return "No session. Login at '/?shop=<myshopify_domain>'"

@app.route("/")
def login():
    shop = request.args.get('shop', '')
    scope = ["read_products"]

    # instantiate shop session
    shop_session = shopify.Session(shop)

    # store shop session in session repository
    session['shopify'] = store_session(shop_session)
    session['myshopify_domain'] = shop

    permission_url = shop_session.create_permission_url(scope,
        url_for('retrieve_token', _external=True))

    return redirect(permission_url) # redirect to Shopify to initiate installation

@app.route("/auth/callback")
def retrieve_token():
    shop_session = retrieve_session(session['shopify'])
    shop_session.request_token(request.args)
    shopify.ShopifyResource.activate_session(shop_session) # activate the session

    return redirect(url_for('main_app'))

@app.route("/app")
def main_app():
    products = shopify.Product.find(limit=10) # GET /admin/products.json?limit=10

    body = "<h1> Fetched products from shop </h1>"
    for product in products:
        body += "<li>" + product.title + "</li>"

    return body

def store_session(shop_session):
    session_id = str(uuid.uuid4())
    session_repository[session_id] = shop_session
    return session_id

def retrieve_session(session_id):
    return session_repository[session_id]

Does this still work for you? I'm having issues with it, esp w.r.t shopify iframe

Hey @sanealytics, sorry for the late reply - this example wasn't intended to be used with the embedded app SDK. I'm working on an example Flask application that supports the embedded SDK. In the meantime, I recommend checking out this article written by another developer.

Cheers!

No worries. The new updates to their auth made it really hard to use anything other than their node (or ruby) modules. So I ended up going that way to save me some pain.
Take care

Take a look at this project if you're still interested in a working example with Flask.