Purpose:
To calculate the monthly cost for goods for the part payment service. The same function is used for account and account campaigns.
Please note! To obtain pclasses use the function fetchPClasses which will return the pclasses in a file or database.
Return value:
An amount to be displayed to the customer. Round this up to the nearest crown or to one tenth euro, e.g. 14,56 rounds up to 14,6 EUR. or Throws an exception with error code and error message.
Code examples
Please note that you can find more code examples in our API-files which you will find under Download API in the left menu.
The code examples have been divided into several steps. Click on the step you would like to see the code example.
1. Initialize and setup the Klarna instance
$k = new Klarna();
$k->config(
123456, // Merchant ID
'sharedSecret', // Shared Secret
KlarnaCountry::SE, // Country
KlarnaLanguage::SV, // Language
KlarnaCurrency::SEK, // Currency
Klarna::BETA, // Server
'json', // PClass Storage
'/srv/pclasses.json', // PClass Storage URI path
true, // SSL
true // Remote logging of response times of xmlrpc calls
);
2. Calculate the monthly cost for the product page
$sum = 149.99; // Let's assume this is the product cost.
$flag = KlarnaFlags::PRODUCT_PAGE; // or KlarnaFlags::CHECKOUT_PAGE, if you want
// to do it for the whole order.
$pclass = $k->getCheapestPClass($sum, $flag);
// Did we get a PClass? (it is false if we didn't)
if ($pclass) {
// Here we reuse the same values as above:
$value = KlarnaCalc::calc_monthly_cost(
$sum,
$pclass,
$flag
);
echo "Value: {$value}\n";
/*
$value is now a rounded monthly cost amount to be displayed to the
customer.
*/
}
The code examples have been divided into several steps. Click on the step you would like to see the code example.
1. Initialize and setup the Klarna instance
API klarna = new API ();
/** Configure the Klarna object **/
klarna.Config (new KlarnaConfig () {
EID = 123456,
Secret = "sharedsecret",
Country = API.Country.Sweden,
Language = API.Language.Swedish,
Currency = API.Currency.SEK,
Encoding = API.Encoding.Swedish,
// API.KlarnaServer.Beta or API.KlarnaServer.Live, depending
// on which server your eid is associated with
Mode = API.KlarnaServer.Beta,
PCStorage = "xml",
PCURI = @"/tmp/pclasses.xml"
});
2. Calculate the monthly cost for the product page
// Create a new Calc object
Calc calc = new Calc ();
// Get the sum to calculate with.
double sum = 149.99;
PClass pclass = klarna.GetCheapestPClass (sum, API.CalculateOn.ProductPage);
double value = calc.CalcMonthlyCost (sum, pclass, API.CalculateOn.ProductPage);
Console.WriteLine ("value: " + value);
The code examples have been divided into several steps. Click on the step you would like to see the code example.
1. Initialize and setup the Klarna instance
Klarna k = new Klarna();
/*
* Configure the Klarna object using the config() method. (Alternative 1)
*/
KlarnaConfig conf = new KlarnaConfig();
// Define values:
conf.setEid(0); // Merchant ID or Estore ID, an Integer above 0.
conf.setSecret("sharedSecret"); // The shared secret which accompanied your eid.
conf.setCountry(KlarnaCountry.DE); // The country of your store.
conf.setLanguage(KlarnaLanguage.DE); // The language of your store.
conf.setCurrency(KlarnaCurrency.EUR); // The currency of your store.
conf.setMode(Klarna.BETA); // or Klarna.LIVE when you are ready to go live.
// Define pclass settings:
conf.setPcStorage("json"); // Storage module. Currently only json is supported.
conf.setPcURI("/srv/pclasses.json"); // Where the json file for the pclasses are stored.
// Should we use SSL?
conf.setSsl(false);
// Should we error report/status report to klarna.
conf.setCandice(true); // set to false if your server doesn't support UDP
// Do we want to see normal debug information?
conf.setDebug(null); // true to debug, null or false not to debug
// Set the config object.
k.config(conf);
/*
* Configure the Klarna object using the config() method (Alternative 2)
*/
/*
* k.config(0, // e-store ID
* "sharedSecret", // shared secret
* KlarnaCountry.DE, // Country constant
* KlarnaLanguage.DE, // Language constant
* KlarnaCurrency.EUR, // Currency constant
* Klarna.BETA, // Mode, BETA or LIVE
* "json", // Storage module
* "/srv/pclasses.json", // Storage location
* true, // SSL
* true // Candice
* );
*
* k.debug = false;
*/
/*
* Configure the Klarna object using the config() method (Alternative 3)
*/
//k.config(KlarnaConfig.fromJson("/srv/klarna.json"));
/* the file would contain the following data to set the same information as above alternatives:
* {
* "eid":0,
* "secret":"sharedSecret",
** "country":"DE",
** "language":"DE",
* "currency":"EUR",
* "mode":1,
* "ssl":false,
* "candice":true,
* "pcStorage":"json",
* "pcURI":"/srv/pclasses.json"
* }
*
*/
2. Calculate the monthly cost for the product page
double sum = 149.99; // Let's assume this is the products cost.
KlarnaPClass pclass = k.getCheapestPClass(sum, KlarnaFlags.DisplayPage.PRODUCT_PAGE); // or KlarnaFlags.CHECKOUT_PAGE if you want to do it for the whole order
// Did we get a PClass? (it is null if we didn't)
double value = 0d;
if (pclass != null) {
value = KlarnaCalc.calc_monthly_cost(
sum,
pclass,
KlarnaFlags.DisplayPage.PRODUCT_PAGE.intVal()); // Using the int value of the flag.
// value is now a rounded monthly cost amount to be displayed to the customer.
}
The code examples have been divided into several steps. Click on the step you would like to see the code example.
1. Initialize and setup the Klarna instance
<%
Option Explicit
%>
<%
' Grab the API object
' -Merchant ID or Estore ID, an integer above 0.
' -The shared secret which accompanied your eid.
' -Country, language and currency.
Dim kAPI
Set kAPI = GetKlarna(0, "sharedsecret", "SE", "SV", "SEK")
' Do we want to see normal debug information?
kAPI.DebugInformation = True
' Set the address and port to Klarna server.
' Use LIVE or BETA depending on which server your eid is associated with.
kAPI.SetPort(HTTPS_PORT) ' or HTTP_PORT
kAPI.SetHost(BETA_HOST) ' or LIVE_HOST
' Where the XML for the PClasses are stored, e.g. "pclasses.xml"
kAPI.SetPClassesStorageUri(Server.MapPath("pclasses.xml"))
%>
2. Calculate the monthly cost for the product page
<%
On Error Resume Next
Dim sum
sum = 149.99 ' Let's assume this is the product cost.
Dim flag
flag = PRODUCT_PAGE ' or CHECKOUT_PAGE, if you want to do it for the whole order.
Dim pclass
Set pclass = kAPI.GetCheapestPClass(sum, flag)
If Err.number = 0 Then
' Success
' Did we get a PClass?
If TypeName(pclass) = "KlarnaPClass" Then
Dim calc
Set calc = New KlarnaCalc
' Here we reuse the same values as above
Dim value
value = calc.calc_monthly_cost(sum, pclass, flag)
' value is now a rounded monthly cost amount to be displayed to the customer
Response.Write("Monthly cost is: " & value)
Else
Response.Write("Could not get a PClass")
End If
Else
' Something went wrong
Response.Write("Error occured: " & Err.number & " - " & Err.Description & "" & Err.Source & "")
End If
%>