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gpetty · 04-01-2016

I am successfully using the Python SDK and the get-transaction-details.py sample script to retrieve most of the the details of a credit card transaction. However, I can't figure out how to unpack the transactionDetailsResponse.transaction.lineItems o...

gpetty · 03-27-2016

I'm using the SIM gateway to submit purchase transactions. One of the fields provided by the API is x_discount, which supposedly can be used to indicate a discount from the merchant. But the hosted payment form that shows up doesn't actually display ...

gpetty · 03-25-2016

Using PHP for a transaction posted to the SIM gateway, fingerprint generation is based on the following function: function hmac ($key, $data){return (bin2hex (mhash(MHASH_MD5, $data, $key)));}Not being very familiar with either PHP or hash functions,...

gpetty · 03-24-2016

I'm using the Python SDK to get batch and transaction info (apart from one problem that is not relevant here), but I would like to continue using the SIM gateway for processing buyer transactions on my website. My existing web page does this with cal...

gpetty · 03-24-2016

I have been submitting credit card transactions to the SIM server via a PHP web form for many years without problems. Now I'm trying to start using the Python SDK, executing the get-settled-batch-list script as a first exercise. I have already set th...

gpetty · 04-04-2016

Richard,I did take your advice and open an issue two days ago. So far, no response. Thanks, Grant

gpetty · 03-28-2016

The code posted previously needs to be corrected to reverse the order of the arguments to hmac.new(). The following is what I'm now using successfully in my Python-based interface to the gateway: import hmac def HMAC(key,data): return(hmac.new(key,da...

gpetty · 03-25-2016

After considerable trial and error, I find that the following appears to produce the same output as the PHP version: import hmacdef HMAC(key,data): return(hmac.new(data,key).hexdigest())

gpetty · 03-25-2016

I have narrowed down the issue to one of simply generating valid fingerprints in Python -- see my separate message with the subject "Python and fingerprint generation"

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unpacking transaction line items with the Python SDK

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