Error "Could not log in to Shopify store."

[nachoggg]

It returns this error message after installation.

1. We loaded http://localhost:8000/
2. App is installed in our shop
3. it redirects to main page again with following information

"Could not log in to Shopify store"

[hin7141]

same here. Did you manage to fix it? @nachoggg

[tanema]

You will need to check the exception that is raised during the finalize action in shopify_app/views.py

[rx-gan]

Problem solved. You need to install the Python SSL certificate in order to get the access token from Shopify.
Read: https://stackoverflow.com/questions/52805115/certificate-verify-failed-unable-to-get-local-issuer-certificate

Or you can try breaking the finalize function up to debug the problem yourself if it doesn't work.
Raise an exception at the right place to find the main issue. Mine was missing SSL certificate.

try:
        shop_url = params['shop']
    except Exception:
        messages.error(request, "Cannot get shop url")
        return redirect(reverse(login))

    try:
        session = _new_session(shop_url)
    except Exception:
        messages.error(request, "cannot create new session with shop url")
        return redirect(reverse(login))

    try: 
        access_token = session.request_token(request.GET.dict()) 
    except Exception:
        messages.error(request, request.GET)
        raise Exception('cannot get token')
        return redirect(reverse(login)) 

    try:
        request.session['shopify'] = {
            "shop_url": shop_url,
            "access_token": access_token
        }
    except Exception:
        messages.error(request, "cannot store session")
        return redirect(reverse(login))

[ivanadamovic]

In shopfify_app/decorators.py, I found this is true when the request is
/?hmac=6949885b8cdc92ca58b6f1bc74703ccc0d249165c078f9d07ad1a2d8a8b13c93&locale=en&new_design_language=true&session=5dd637ab8a0854360df8a3b4549e1527092942e40511615d819d3cb9c23b86ab&shop=demo.myshopify.com&timestamp=1609956648

if not hasattr(request, 'session') or 'shopify' not in request.session:

That's why it redirects the login page.
But not sure what the solution is.
Anyone can help us to fix this?

Thanks.

[ivanadamovic]

@nachoggg @hin7141 Were you able to fix the issues?

[hin7141]

Hi @ivanadamovic . I managed to fix it. The issue is you need an SSL certificate to make request.

[tanema]

The issue is you need an SSL certificate to make request.

This is more easily done with a tunnel like ngrok

[ivanadamovic]

Hi @tanema, thanks for your answer.
I have tried using Ngrok but I am having the same issue.

My App URL

https://a725f8e7655c.ngrok.io/

Redirect URLs

https://a725f8e7655c.ngrok.io/shopify/finalize/
http://a725f8e7655c.ngrok.io/shopify/finalize/

Could you please help me fix this issue?
Thanks.