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Is it possible to set Expresso Store to not accept American Express payments? The client us using stripe, and within stripe there is no option to disallow Amex.

I can block american express cards using JS but this is not a very robust solution.

I thought it might be possible to pass payment[card_type], but this has no effect.

would there be a hook i can use to validate before it'd passed to the payment processor?

Many thanks,

Tom

  • Is there a particular reason that you are not wanting to accept AMEX? Stripe doesn't charge higher fees for AMEX over Visa/MC/Discover in most cases unless you have $80k+ monthly sales and you have negotiated lower rates for transactions then the normal 2.9% + $.30 fee have I ever seen a difference between the different card types. – Justin Long Jul 21 '15 at 0:46
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There is nothing built in to Store that would allow you to prevent a particular card type from being processed at the module level.

If the gateway required the card type you would be able to use a select and omit any card types you did not want to support. So for example you could do

<select name="payment[card_type]">
    <option value="">Select one...</option>
    <option value="visa">Visa</option>
    <option value="mastercard">MasterCard</option>
    <option value="discover">Discover</option>
</select>

if you only wanted to support Visa, MasterCard and Discover but not Amex. Stripe however does not require the card type to be submitted for a successful transaction. I also don't think that submitting the wrong card type would cause the transaction to fail as a result (even if you added data-stripe="card_type"). Having the select however would give a visual cue to the end user that Amex is not accepted.

If a JS option is out of the question you should be able to use the store_payment_request_start hook to do any additional processing/validation before the transaction to sent to the payment processor.

| improve this answer | |
  • I went with the JS option for the moment, and will look into the hook as a more secure method. Thanks! – MrTomTom Aug 3 '15 at 23:54

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