Square Point of Sale not reading correct dollar amount

Question

I am trying to test out the Web API using the example code from the documentation. I can successfully call the APP with generating any errors, but the dollar amount that I am hard coding into my script is not passing over correct. It seems to be two digits off.

I.E $500 translates to $5

I have tried using the value of a text field as well as hard coding in the value. Same result each time.

I call the code when I click a button on my web form:

 <!--- Square CC Processing --->
   <script>  
          document.getElementById("do_square_payment_btn").onclick = function (e) {

            e.preventDefault();

            var amount = $('#payment_amount_mobile').val();
            //var amountFixed = amount.toFixed(2);
            console.log("Amount being passed in on square button click " + amount);
            var dataParameter = {
                "amount_money": {
                    "amount" : '5000' ,
                    "currency_code" : "USD"
                },
                "callback_url" : "https://jaydien.ezservicetrax.com", // Replace this value with your application's callback URL
                "client_id" : "sq0idp-CHLAPYt9s1L594ZZZysDSQ", // Replace this value with your application's ID
                "version": "1.3",
                "notes": "Computer Service",
                "options" : {
                "supported_tender_types" : ["CREDIT_CARD"] //,"CASH","OTHER","SQUARE_GIFT_CARD","CARD_ON_FILE"
                }
            };

            console.log(amount);
            console.log("Square button clicked");
            console.log("square-commerce-v1://payment/create?data=" + encodeURIComponent(JSON.stringify(dataParameter)));
            location.href = "square-commerce-v1://payment/create?data=" + encodeURIComponent(JSON.stringify(dataParameter));

            };  


          //window.location = "square-commerce-v1://payment/create?data=" + encodeURIComponent(JSON.stringify(dataParameter));

    </script>

What am I doing wrong?

.............Java? – Hovercraft Full Of Eels Dec 03 '17 at 02:43 — Hovercraft Full Of Eels, Dec 03 '17 at 02:43

score 1 · Accepted Answer · answered Dec 03 '17 at 02:47

1

It's working exactly as it's supposed to. Per the documentation:

Note that you specify the amount in the smallest denomination of the applicable currency. For example, US dollar amounts are specified in cents. See Working with monetary amounts for details.

So, a value of 500 for USD represents $5.

answered Dec 03 '17 at 02:47

ceejayoz

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(You'll find this behavior in most modern payment APIs. It lets everyone avoid the mayhem of [floating point math](https://stackoverflow.com/questions/588004/is-floating-point-math-broken).) – ceejayoz Dec 03 '17 at 02:49
Sorry, but that is confusing. So if I wanted to pass $89.10, how should that look like? – Brian Fleishman Dec 03 '17 at 02:51
okay. Then is there an easy way in javascript to remove the decial from from a number? My users are entering in an amount in a text box that I am passing into the script. For example, a user will type in 89.10 – Brian Fleishman Dec 03 '17 at 02:56
Or I could just multiply by 100 I guess? – Brian Fleishman Dec 03 '17 at 03:00
1

Yep, multiply by 100 is the usual approach. – ceejayoz Dec 03 '17 at 03:01
(Saves you from an insane over-charging if someone enters `$10.000`. :-p) – ceejayoz Dec 03 '17 at 03:08

Square Point of Sale not reading correct dollar amount

1 Answers1