{"id":495,"date":"2024-08-08T19:49:19","date_gmt":"2024-08-08T19:49:19","guid":{"rendered":"https:\/\/lddpay.com\/?post_type=docs&p=495"},"modified":"2024-08-10T08:37:52","modified_gmt":"2024-08-10T08:37:52","password":"","slug":"sdk-checkout","status":"publish","type":"docs","link":"https:\/\/lddpay.com\/zh\/docs\/sdk-checkout\/","title":{"rendered":"SDK CHECKOUTS"},"content":{"rendered":"

SDK CHECKOUTS<\/h1>\n\n\n\n

Version: 1.1.1
Released: 2024\/05\/09<\/p>\n\n\n\n

Copyrighted by lddPay<\/p>\n\n\n\n

Checkout SDK Documentation<\/h1>\n\n\n\n

General<\/h2>\n\n\n\n

For the checkout page, a wide range of settings is available through the admin panel, for example, placing your own logo, changing the colors of basic elements. But if these opportunities are not enough to ensure corporate style, design, merchants also have the option of uploading their own checkout page on the platform resources. In this case, all the advantages of HPP integration are retained, one of which is the absence of necessity for the merchant to conduct a complex and expensive PCI DSS certification.<\/p>\n\n\n\n

\u26a0\ufe0f Currently, only acquiring payment forms with a CARD<\/p>\n\n\n\n

payment method, ApplePay<\/p>\n\n\n\n

and GooglePay<\/p>\n\n\n\n

are supported (where card data is entered on the form itself). P2P, debit payment forms are not supported.<\/p>\n\n\n\n

Payment form development<\/h2>\n\n\n\n

When developing your own payment page or adapting an existing one, the following conditions must be met:<\/p>\n\n\n\n

    \n
  1. Technology stack – HTML \/ CSS \/ JavaScript<\/li>\n\n\n\n
  2. Project folder structure:<\/li>\n<\/ol>\n\n\n\n
      \n
    • \/img<\/li>\n\n\n\n
    • \/style<\/li>\n\n\n\n
    • \/js<\/li>\n\n\n\n
    • \/<\/li>\n<\/ul>\n\n\n\n
        \n
      1. You need to connect Checkout SDK module in the payment page code:<\/li>\n<\/ol>\n\n\n\n
        <script src=\"https:\/\/{{CHECKOUT_URL}}\/sdk\/pay-session.js\"><\/script><\/code><\/pre>\n\n\n\n
          \n
        1. It is necessary to create a new instance of the PaySession<\/code> class by passing to the constructor function the identifier of the HTML element of the form for entering data on the payment page and the parameter if on-the-fly validation of the payment form fields is needed (optional parameter). Next, call the begin()<\/code> method:<\/li>\n<\/ol>\n\n\n\n
          <script>
              const session = new PaySession({formName: \"paymentForm\", validateOnInput: true});
              session.begin();
          <\/script><\/code><\/pre>\n\n\n\n
            \n
          1. In the payment page HTML code, you need to link the <input><\/code> tags of the form to Checkout SDK module using special id<\/code> identifiers. The module interacts only with those <input><\/code> elements that are inside the <form><\/code> tag and are indicated by the corresponding id<\/code>:<\/li>\n<\/ol>\n\n\n\n
            <input><\/code><\/strong><\/th>Type<\/strong><\/th><\/tr><\/thead>
            Payment card number<\/td>payer_card<\/code><\/td><\/tr>
            CVV code<\/td>payer_cvv<\/code><\/td><\/tr>
            Expiry date<\/td>payer_expiryDate<\/code><\/td><\/tr>
            Payer name<\/td>payer_name<\/code><\/td><\/tr>
            ZIP code<\/td>payer_zip<\/code><\/td><\/tr>
            Payer city<\/td>payer_city<\/code><\/td><\/tr>
            Payer phone number<\/td>payer_phone<\/code><\/td><\/tr>
            Payer email<\/td>payer_email<\/code><\/td><\/tr>
            Payer state<\/td>payer_state<\/code><\/td><\/tr>
            Payer address<\/td>payer_address<\/code><\/td><\/tr>
            Payer country<\/td>payer_country<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
            \n
            \u26a0\ufe0f The form must contain at least inputs with such id: payer_card<\/code>, payer_cvv<\/code>, payer_expiryDate<\/code>, payer_name<\/code>.<\/p>\n<\/blockquote>\n\n\n\n
              \n
            1. The Checkout SDK library implements a set of methods for obtaining some session checkout parameters.<\/li>\n<\/ol>\n\n\n\n
              getBillingAddress<\/strong>() – getting the billing_address object from the merchant’s Authentication request. Object properties may be empty if the corresponding information has not been provided by the merchant. Result example:<\/p>\n\n\n\n
              {address: \"Moore Building\", city: \"Los Angeles\", country: \"US\", phone: \"12345678\", state: \"\", zip: \"12345\"}<\/code><\/pre>\n\n\n\n
              getOrderInfo<\/strong>() – obtaining information on the current order. The function returns an object with data, for example:<\/p>\n\n\n\n
              {number: \"111-222\", amount: \"10.00\", currency: \"USD\", description: \"Important gift\"}<\/code><\/pre>\n\n\n\n
              getSessionExpiry<\/strong>() – getting the checkout session lifetime date\/time in unixtime format. Result example:<\/p>\n\n\n\n
              1711378966<\/code><\/pre>\n\n\n\n
              getSessionState<\/strong>() – getting the current session status. Possible values: complete, redirect, waiting \u0438 decline. Example:<\/p>\n\n\n\n
              \"decline\"<\/code><\/pre>\n\n\n\n
              getDeclinesMax<\/strong>() – receiving the set limit on the number of declines on the payment page. This parameter can be defined by the merchant in Authentication request and after receiving such a number of declines an automatic redirect of the user to cancelUrl will be performed.. Example of function call result:<\/p>\n\n\n\n
              2<\/code><\/pre>\n\n\n\n
              getCancelUrl<\/strong>() – getting success_url passed by the merchant in Authentication request. Example:<\/p>\n\n\n\n
              \"https:\/\/example.domain.com\/cancel\"<\/code><\/pre>\n\n\n\n
              getCardTokens<\/strong>() – getting a set of available payment card tokens. The result of the call will be an array of objects, example:<\/p>\n\n\n\n
              [
               {
                  \"token\": \"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\",
                  \"last\": \"1111\",
                  \"month\": \"01\",
                  \"year\": \"2025\",
                  \"brand\": \"visa\"
               }
              ]<\/code><\/pre>\n\n\n\n
              setCardToken<\/strong>(token: string) – selecting a specific token for the payment process. Stored card data in the token has priority over card data from form fields.<\/p>\n\n\n\n
              getActiveCardToken<\/strong>() – getting active token, if such token was set using setCardToken function. The method returns either a string with the token or an empty value if no active token is selected. Example:<\/p>\n\n\n\n
              \"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\"<\/code><\/pre>\n\n\n\n
              clearCardToken<\/strong>() – to deselect the active token. This method should be used if you want to revert to the option of directly entering card data in the form fields instead of using data from the token.<\/p>\n\n\n\n
              getCountries<\/strong>() – reference function to get a complete list of countries with regions. Returns an array of objects:<\/p>\n\n\n\n
              [
               {
                  regions: null,
                  value: \"AF\",
                  text: \"Afghanistan\"
                },
                {
                  regions: [ {value: \"ACT\", text: \"Australian Capital Territory\"}, ... ],
                  value: \"AU\",
                  text: \"Australia\",
                }
              ]<\/code><\/pre>\n\n\n\n
                \n
              1. Also the Checkout SDK module implements a number of event listeners, the result of which is available for processing on the form page. Event handling is optional.<\/li>\n<\/ol>\n\n\n\n
                onDecline<\/strong> – is called when the response declined<\/code> is received at the time of payment processing or when checking the session state. Returns an object with the error message: {message: string}<\/code>.<\/p>\n\n\n\n    
                \n            <\/h2>\n\n    
                \n        
                \n    
                OnDecline Event Handler<\/h2>\n<\/div>\n
                • \n    
                  <\/path><\/svg><\/path><\/svg><\/div>    \n        Event handler code example    <\/span>\n    <\/div>\n
                  \n    
                  session.onDecline = function (event) {<\/p>\n
                     document.querySelector(“.decline-message”).innerText = event.message;<\/p>\n
                  }<\/p>\n<\/div>\n<\/div><\/li><\/ul>