(C++) Amazon Pay - Get Charge Permission

See more Amazon Pay Examples

Get Charge Permission to determine if this Charge Permission can be used to charge the buyer.

Note: This example requires Chilkat v9.5.0.89 or later. Contact support@chilkatsoft.com to get a v9.5.0.89 pre-release for testing.

For more information, see https://developer.amazon.com/docs/amazon-pay-api-v2/charge-permission.html#get-charge-permission

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#include <CkHttp.h>
#include <CkPrivateKey.h>
#include <CkStringBuilder.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http;
    bool success;

    // Implements the following CURL command:

    // curl "https://pay-api.amazon.com/:version/chargePermissions/:chargePermissionId"
    // 	-X GET
    // 	-H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
    // 	-H "x-amz-pay-date:20201012T235046Z"

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    // Load your Amazon Pay private key.  
    // There are many other ways to load private keys into the Chilkat private key object, such as from different formats,
    // or from in-memory strings or bytes.
    CkPrivateKey privKey;
    success = privKey.LoadPemFile("C:/someDir/myAmazonPayPrivateKey.pem");
    if (success == false) {
        std::cout << privKey.lastErrorText() << "\r\n";
        return;
    }

    // Provide your Amazon Pay private key and Public Key ID 
    // Use your public key ID here.  It must be the one associated with the private key.
    // Note: The SetAuthPrivateKey method was added in Chilkat v9.5.0.89
    const char *publicKeyId = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW";
    success = http.SetAuthPrivateKey(publicKeyId,privKey);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    // Note: When the private key is provided as shown above, Chilkat will automatically add the required x-amz-pay-* headers to the HTTP request,
    // and will also sign the request.  Nothing more is needed.
    // Chilkat automatically generates and adds the following headers:
    // 
    // x-amz-pay-date
    // x-amz-pay-host
    // x-amz-pay-region
    // Authorization

    http.put_Accept("application/json");

    int respStatusCode = 0;

    CkStringBuilder sbResponseBody;
    success = http.SetUrlVar("chargePermissionId","P21-1111111-1111111");
    // To use the live system, replace "sandbox" with "live" in the URL passed to QuickGetSb.
    // Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
    success = http.QuickGetSb("https://pay-api.amazon.eu/sandbox/v2/chargePermissions/{$chargePermissionId}",sbResponseBody);
    if (success == false) {
        // If the LastStatus is not equal to 0, then we received a response, but it was an error response.
        respStatusCode = http.get_LastStatus();
        if (respStatusCode != 0) {
            std::cout << "Response Status Code = " << respStatusCode << "\r\n";
            std::cout << "Response body:" << "\r\n";
            std::cout << http.lastResponseBody() << "\r\n";
        }
        else {
            std::cout << http.lastErrorText() << "\r\n";
        }

        return;
    }

    CkJsonObject jResp;
    jResp.LoadSb(sbResponseBody);
    jResp.put_EmitCompact(false);

    std::cout << "Response Body:" << "\r\n";
    std::cout << jResp.emit() << "\r\n";

    respStatusCode = http.get_LastStatus();
    std::cout << "Response Status Code = " << respStatusCode << "\r\n";
    // We expect a 200 status code for success.
    // Note: Some Amazon Pay API calls return 200 for success, others return 201.
    if (respStatusCode != 200) {
        std::cout << "Failed." << "\r\n";
        return;
    }

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //     "chargePermissionId": "chargePermission-1",
    //     "chargePermissionReferenceId": null,
    //     "buyer": {
    //         "buyerId": "buyerId",
    //         "name": "name-1",
    //         "email": "name@amazon.com",
    //         "phoneNumber": "800-000-0000",
    //         "primeMembershipTypes": null
    //     },
    //     "releaseEnvironment": "Live",
    //     "shippingAddress":{  // Null for PayOnly product type
    //         "name": "Work",
    //         "addressLine1": "440 Terry Ave",
    //         "addressLine2": "",
    //         "addressLine3": "",
    //         "city": "Seattle",
    //         "county": "King",
    //         "district": "Seattle",
    //         "stateOrRegion": "WA",
    //         "postalCode": "98121",
    //         "countryCode": "US",
    //         "phoneNumber": "800-000-0000"
    //     },
    //     "billingAddress":{  // Only available in EU or for PayOnly product type
    //         "name": "Work",
    //         "addressLine1": "440 Terry Ave",
    //         "addressLine2": "",
    //         "addressLine3": "",
    //         "city": "Seattle",
    //         "county": "King",
    //         "district": "Seattle",
    //         "stateOrRegion": "WA",
    //         "postalCode": "98121",
    //         "countryCode": "US",
    //         "phoneNumber": "800-000-0000"
    //     },
    //     "paymentPreferences":[{
    //         "paymentDescriptor": null
    //     }],
    //     "statusDetails":{
    //         "state": "Chargeable",
    //         "reasons":null,
    //         "lastUpdatedTimestamp": "20190714T155300Z"
    //     },
    //     "creationTimestamp": "20190714T155300Z",
    //     "expirationTimestamp": "20190715T155300Z",
    //     "merchantMetadata":{
    //         "merchantReferenceId": "123-77-876", 
    //         "merchantStoreName": "AmazonTestStoreFront",
    //         "noteToBuyer": "merchantNoteForBuyer",
    //         "customInformation": "This is custom information"
    //     },
    //     "platformId": "SPId",
    //     "limits": {
    //         "amountLimit": {
    //             "amount": "14.00",
    //             "currencyCode": "USD"
    //         },
    //         "amountBalance": {
    //             "amount": "14.00",
    //             "currencyCode": "USD"
    //         }
    //     },
    //     "presentmentCurrency": "USD"
    // }

    // Sample code for parsing the JSON response...
    // Use the following online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
    // See this example explaining how this memory should be used: const char * functions.

    const char *paymentDescriptor = 0;

    const char *chargePermissionId = jResp.stringOf("chargePermissionId");
    const char *chargePermissionReferenceId = jResp.stringOf("chargePermissionReferenceId");
    const char *buyerBuyerId = jResp.stringOf("buyer.buyerId");
    const char *buyerName = jResp.stringOf("buyer.name");
    const char *buyerEmail = jResp.stringOf("buyer.email");
    const char *buyerPhoneNumber = jResp.stringOf("buyer.phoneNumber");
    const char *buyerPrimeMembershipTypes = jResp.stringOf("buyer.primeMembershipTypes");
    const char *releaseEnvironment = jResp.stringOf("releaseEnvironment");
    const char *shippingAddressName = jResp.stringOf("shippingAddress.name");
    const char *shippingAddressAddressLine1 = jResp.stringOf("shippingAddress.addressLine1");
    const char *shippingAddressAddressLine2 = jResp.stringOf("shippingAddress.addressLine2");
    const char *shippingAddressAddressLine3 = jResp.stringOf("shippingAddress.addressLine3");
    const char *shippingAddressCity = jResp.stringOf("shippingAddress.city");
    const char *shippingAddressCounty = jResp.stringOf("shippingAddress.county");
    const char *shippingAddressDistrict = jResp.stringOf("shippingAddress.district");
    const char *shippingAddressStateOrRegion = jResp.stringOf("shippingAddress.stateOrRegion");
    const char *shippingAddressPostalCode = jResp.stringOf("shippingAddress.postalCode");
    const char *shippingAddressCountryCode = jResp.stringOf("shippingAddress.countryCode");
    const char *shippingAddressPhoneNumber = jResp.stringOf("shippingAddress.phoneNumber");
    const char *billingAddressName = jResp.stringOf("billingAddress.name");
    const char *billingAddressAddressLine1 = jResp.stringOf("billingAddress.addressLine1");
    const char *billingAddressAddressLine2 = jResp.stringOf("billingAddress.addressLine2");
    const char *billingAddressAddressLine3 = jResp.stringOf("billingAddress.addressLine3");
    const char *billingAddressCity = jResp.stringOf("billingAddress.city");
    const char *billingAddressCounty = jResp.stringOf("billingAddress.county");
    const char *billingAddressDistrict = jResp.stringOf("billingAddress.district");
    const char *billingAddressStateOrRegion = jResp.stringOf("billingAddress.stateOrRegion");
    const char *billingAddressPostalCode = jResp.stringOf("billingAddress.postalCode");
    const char *billingAddressCountryCode = jResp.stringOf("billingAddress.countryCode");
    const char *billingAddressPhoneNumber = jResp.stringOf("billingAddress.phoneNumber");
    const char *statusDetailsState = jResp.stringOf("statusDetails.state");
    const char *statusDetailsReasons = jResp.stringOf("statusDetails.reasons");
    const char *statusDetailsLastUpdatedTimestamp = jResp.stringOf("statusDetails.lastUpdatedTimestamp");
    const char *creationTimestamp = jResp.stringOf("creationTimestamp");
    const char *expirationTimestamp = jResp.stringOf("expirationTimestamp");
    const char *merchantMetadataMerchantReferenceId = jResp.stringOf("merchantMetadata.merchantReferenceId");
    const char *merchantMetadataMerchantStoreName = jResp.stringOf("merchantMetadata.merchantStoreName");
    const char *merchantMetadataNoteToBuyer = jResp.stringOf("merchantMetadata.noteToBuyer");
    const char *merchantMetadataCustomInformation = jResp.stringOf("merchantMetadata.customInformation");
    const char *platformId = jResp.stringOf("platformId");
    const char *limitsAmountLimitAmount = jResp.stringOf("limits.amountLimit.amount");
    const char *limitsAmountLimitCurrencyCode = jResp.stringOf("limits.amountLimit.currencyCode");
    const char *limitsAmountBalanceAmount = jResp.stringOf("limits.amountBalance.amount");
    const char *limitsAmountBalanceCurrencyCode = jResp.stringOf("limits.amountBalance.currencyCode");
    const char *presentmentCurrency = jResp.stringOf("presentmentCurrency");
    int i = 0;
    int count_i = jResp.SizeOfArray("paymentPreferences");
    while (i < count_i) {
        jResp.put_I(i);
        paymentDescriptor = jResp.stringOf("paymentPreferences[i].paymentDescriptor");
        i = i + 1;
    }
    }