Paypal error after switch to live Paypal API credentials from sandbox "An error occurred communicating with PayPal"

[Sean Liu]

Hi,

My site is build to take payment using Django-Oscar_paypal, everything works fine when I use Paypal sandbox API credentials.

But after switched settings.py to live Paypal credentials, I got this error message after click on checkout using paypal button: "An error occurred communicating with PayPal".

It is very annoying, I cannot fingered out what is the cause, basket value is plus 0, so, not caused by 0 basket charge error.

Can anyone please help, or let me know how to find the real detailed error message or how to debug to find the root of this problem.

Sean

[David Winterbottom]

Two things to check:

• Ensure you have a logger defined for name 'paypal.express' set at DEBUG level
  
• Use the admin to look at the ExpressTransaction models
  

This should show you what the error is.  It's very likely to be that your production credentials aren't being accepted.​

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[Sean Liu]

Thanks David.

The error message shows: "Callback URL is wrong type; you must use the HTTPS."

Surely I need to setup the server with ssl and https access.

[David Winterbottom]

On 15 October 2013 15:50, Sean Liu <liush...@gmail.com> wrote:

Thanks David.

The error message shows: "Callback URL is wrong type; you must use the HTTPS."

Surely I need to setup the server with ssl and https access.

​Yes, that sounds right.​

 

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[Sean Liu]

After switched site to https, still got this error, cannot find where to define call back url

[Sean Liu]

Finally, works it out now!

In site-packages/paypal/express/views.py, it was hard coded into ' params['scheme'] = 'http'', which is a bug I suggest, as even in the debug mode, https options should be included too, like the circumstance I am in now. Otherwise, paypal express will never work for testing on live credentials.  

        if settings.DEBUG:

            # Determine the localserver's hostname to use when

            # in testing mode

            params['host'] = self.request.META['HTTP_HOST']

            params['scheme'] = 'http' 

[David Winterbottom]

Glad you got it fixed.

I've create an issue for the http thing: 

https://github.com/tangentlabs/django-oscar-paypal/issues/47

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