C
C
Amazon Pay - Create Checkout Session
See more Amazon Pay Examples
Create a new Amazon Pay Checkout Session.Chilkat C Downloads
#include <C_CkHttp.h>
#include <C_CkJsonObject.h>
#include <C_CkPrivateKey.h>
#include <C_CkHttpResponse.h>
#include <C_CkStringBuilder.h>
void ChilkatSample(void)
{
BOOL success;
HCkHttp http;
HCkJsonObject json;
int i;
HCkPrivateKey privKey;
const char *publicKeyId;
HCkHttpResponse resp;
HCkStringBuilder sbResponseBody;
HCkJsonObject jResp;
int respStatusCode;
BOOL nullVal;
const char *constraintId;
const char *description;
const char *strVal;
const char *checkoutSessionId;
const char *webCheckoutDetailsCheckoutReviewReturnUrl;
const char *webCheckoutDetailsCheckoutResultReturnUrl;
const char *webCheckoutDetailsCheckoutCancelUrl;
const char *webCheckoutDetailsAmazonPayRedirectUrl;
const char *productType;
const char *chargePermissionType;
const char *recurringMetadataFrequencyUnit;
const char *recurringMetadataFrequencyValue;
const char *recurringMetadataAmountAmount;
const char *recurringMetadataAmountCurrencyCode;
const char *paymentDetailsPaymentIntent;
BOOL paymentDetailsCanHandlePendingAuthorization;
const char *paymentDetailsChargeAmount;
const char *paymentDetailsTotalOrderAmount;
const char *paymentDetailsSoftDescriptor;
const char *paymentDetailsPresentmentCurrency;
const char *paymentDetailsAllowOvercharge;
const char *paymentDetailsExtendExpiration;
const char *merchantMetadataMerchantReferenceId;
const char *merchantMetadataMerchantStoreName;
const char *merchantMetadataNoteToBuyer;
const char *merchantMetadataCustomInformation;
const char *supplementaryData;
const char *buyer;
const char *billingAddress;
const char *statusDetailsState;
const char *statusDetailsReasonCode;
const char *statusDetailsReasonDescription;
const char *statusDetailsLastUpdatedTimestamp;
const char *shippingAddress;
const char *platformId;
const char *chargePermissionId;
const char *chargeId;
const char *creationTimestamp;
const char *expirationTimestamp;
const char *storeId;
const char *deliverySpecificationsAddressRestrictionsType;
const char *providerMetadataProviderReferenceId;
const char *releaseEnvironment;
int count_i;
success = FALSE;
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http = CkHttp_Create();
// Implements the following CURL command:
// curl "https://pay-api.amazon.com/:version/checkoutSessions/" \
// -X POST
// -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
// -H "x-amz-pay-date:20201012T235046Z"
// -H "x-amz-pay-idempotency-key:AVLo5tI10BHgEk2jEXAMPLEKEY"
// -d '{
// "webCheckoutDetails": {
// "checkoutReviewReturnUrl": "https://a.com/merchant-review-page"
// },
// "storeId": "amzn1.application-oa2-client.8b5e45312b5248b69eeaStoreId",
// "scopes": ["name", "email", "phoneNumber", "billingAddress"],
// "deliverySpecifications": {
// "specialRestrictions": ["RestrictPOBoxes"],
// "addressRestrictions": {
// "type": "Allowed",
// "restrictions": {
// "US": {
// "statesOrRegions": ["WA"],
// "zipCodes": ["95050", "93405"]
// },
// "GB": {
// "zipCodes": ["72046", "72047"]
// },
// "IN": {
// "statesOrRegions": ["AP"]
// },
// "JP": {}
// }
// }
// }
// }'
// Use the following online tool to generate HTTP code from a CURL command
// Convert a cURL Command to HTTP Source Code
// Use this online tool to generate code from sample JSON:
// Generate Code to Create JSON
// The following JSON is sent in the request body.
// {
// "webCheckoutDetails": {
// "checkoutReviewReturnUrl": "https://a.com/merchant-review-page"
// },
// "storeId": "amzn1.application-oa2-client.8b5e45312b5248b69eeaStoreId",
// "scopes": [
// "name",
// "email",
// "phoneNumber",
// "billingAddress"
// ],
// "deliverySpecifications": {
// "specialRestrictions": [
// "RestrictPOBoxes"
// ],
// "addressRestrictions": {
// "type": "Allowed",
// "restrictions": {
// "US": {
// "statesOrRegions": [
// "WA"
// ],
// "zipCodes": [
// "95050",
// "93405"
// ]
// },
// "GB": {
// "zipCodes": [
// "72046",
// "72047"
// ]
// },
// "IN": {
// "statesOrRegions": [
// "AP"
// ]
// },
// "JP": {}
// }
// }
// }
// }
json = CkJsonObject_Create();
CkJsonObject_UpdateString(json,"webCheckoutDetails.checkoutReviewReturnUrl","https://a.com/merchant-review-page");
// Make sure to use your storeId here:
CkJsonObject_UpdateString(json,"storeId","amzn1.application-oa2-client.8b5e45312b5248b69eeaStoreId");
i = 0;
CkJsonObject_putI(json,i);
CkJsonObject_UpdateString(json,"scopes[i]","name");
i = i + 1;
CkJsonObject_putI(json,i);
CkJsonObject_UpdateString(json,"scopes[i]","email");
i = i + 1;
CkJsonObject_putI(json,i);
CkJsonObject_UpdateString(json,"scopes[i]","phoneNumber");
i = i + 1;
CkJsonObject_putI(json,i);
CkJsonObject_UpdateString(json,"scopes[i]","billingAddress");
CkJsonObject_UpdateString(json,"deliverySpecifications.specialRestrictions[0]","RestrictPOBoxes");
CkJsonObject_UpdateString(json,"deliverySpecifications.addressRestrictions.type","Allowed");
CkJsonObject_UpdateString(json,"deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions[0]","WA");
CkJsonObject_UpdateString(json,"deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[0]","95050");
CkJsonObject_UpdateString(json,"deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[1]","93405");
CkJsonObject_UpdateString(json,"deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[0]","72046");
CkJsonObject_UpdateString(json,"deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[1]","72047");
CkJsonObject_UpdateString(json,"deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[0]","AP");
CkJsonObject_UpdateNewObject(json,"deliverySpecifications.addressRestrictions.restrictions.JP");
// 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.
privKey = CkPrivateKey_Create();
success = CkPrivateKey_LoadPemFile(privKey,"C:/someDir/myAmazonPayPrivateKey.pem");
if (success == FALSE) {
printf("%s\n",CkPrivateKey_lastErrorText(privKey));
CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkPrivateKey_Dispose(privKey);
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
publicKeyId = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW";
success = CkHttp_SetAuthPrivateKey(http,publicKeyId,privKey);
if (success == FALSE) {
printf("%s\n",CkHttp_lastErrorText(http));
CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkPrivateKey_Dispose(privKey);
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
// x-amz-pay-idempotency-key
// Authorization
CkHttp_putAccept(http,"application/json");
// To use the live system, replace "sandbox" with "live" in the URL passed to HttpJson.
// Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
resp = CkHttpResponse_Create();
success = CkHttp_HttpJson(http,"POST","https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/",json,"application/json",resp);
if (success == FALSE) {
printf("%s\n",CkHttp_lastErrorText(http));
CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkPrivateKey_Dispose(privKey);
CkHttpResponse_Dispose(resp);
return;
}
sbResponseBody = CkStringBuilder_Create();
CkHttpResponse_GetBodySb(resp,sbResponseBody);
jResp = CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);
CkJsonObject_putEmitCompact(jResp,FALSE);
// If the status code is not equal to 201, this will display error information.
printf("Response Body:\n");
printf("%s\n",CkJsonObject_emit(jResp));
respStatusCode = CkHttpResponse_getStatusCode(resp);
printf("Response Status Code = %d\n",respStatusCode);
if (respStatusCode != 201) {
// The jResp would've contained an error message, similar to this:
// {
// "reasonCode": "InvalidHeaderValue",
// "message": "The value AF2EGWREIPHV2S2TUFFBRDGM provided for PublicKeyId is invalid. Please verify that you are using the PublicKeyId in the correct region and environment."
// }
printf("Failed.\n");
CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkPrivateKey_Dispose(privKey);
CkHttpResponse_Dispose(resp);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);
return;
}
// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)
// {
// "checkoutSessionId": "bd504926-f659-4ad7-a1a9-9a747aaf5275",
// "webCheckoutDetails": {
// "checkoutReviewReturnUrl": "https://a.com/merchant-review-page",
// "checkoutResultReturnUrl": null,
// "checkoutCancelUrl": null,
// "amazonPayRedirectUrl": null
// },
// "productType": "PayAndShip",
// "chargePermissionType": "Recurring",
// "recurringMetadata": {
// "frequency": {
// "unit": "Month",
// "value": "1"
// },
// "amount": {
// "amount": "30",
// "currencyCode": "USD"
// }
// },
// "paymentDetails": {
// "paymentIntent": null,
// "canHandlePendingAuthorization": false,
// "chargeAmount": null,
// "totalOrderAmount": null,
// "softDescriptor": null,
// "presentmentCurrency": null,
// "allowOvercharge": null,
// "extendExpiration": null
// },
// "merchantMetadata": {
// "merchantReferenceId": null,
// "merchantStoreName": null,
// "noteToBuyer": null,
// "customInformation": null
// },
// "supplementaryData": null,
// "buyer": null,
// "billingAddress": null,
// "paymentPreferences": [
// null
// ],
// "statusDetails": {
// "state": "Open",
// "reasonCode": null,
// "reasonDescription": null,
// "lastUpdatedTimestamp": "20191015T204327Z"
// },
// "shippingAddress": null,
// "platformId": null,
// "chargePermissionId": null,
// "chargeId": null,
// "constraints": [
// {
// "constraintId": "BuyerNotAssociated",
// "description": "There is no buyer associated with the Checkout Session. Return the checkout session id to the Amazon Pay Button to allow buyer to login."
// },
// {
// "constraintId": "ChargeAmountNotSet",
// "description": "chargeAmount is not set."
// },
// {
// "constraintId": "CheckoutResultReturnUrlNotSet",
// "description": "checkoutResultReturnUrl is not set."
// },
// {
// "constraintId": "PaymentIntentNotSet",
// "description": "paymentIntent is not set."
// }
// ],
// "creationTimestamp": "20191015T204313Z",
// "expirationTimestamp": "20191016T204313Z",
// "storeId": "amzn1.application-oa2-client.8b5e45312b5248b69eeaStoreId",
// "deliverySpecifications": {
// "specialRestrictions": [
// "RestrictPOBoxes"
// ],
// "addressRestrictions": {
// "type": "Allowed",
// "restrictions": {
// "US": {
// "statesOrRegions": [
// "WA"
// ],
// "zipCodes": [
// "95050",
// "93405"
// ]
// },
// "GB": {
// "zipCodes": [
// "72046",
// "72047"
// ]
// },
// "IN": {
// "statesOrRegions": [
// "AP"
// ]
// },
// "JP": {}
// }
// }
// },
// "providerMetadata": {
// "providerReferenceId": null
// },
// "releaseEnvironment": "Sandbox"
// }
// 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.
checkoutSessionId = CkJsonObject_stringOf(jResp,"checkoutSessionId");
webCheckoutDetailsCheckoutReviewReturnUrl = CkJsonObject_stringOf(jResp,"webCheckoutDetails.checkoutReviewReturnUrl");
webCheckoutDetailsCheckoutResultReturnUrl = CkJsonObject_stringOf(jResp,"webCheckoutDetails.checkoutResultReturnUrl");
webCheckoutDetailsCheckoutCancelUrl = CkJsonObject_stringOf(jResp,"webCheckoutDetails.checkoutCancelUrl");
webCheckoutDetailsAmazonPayRedirectUrl = CkJsonObject_stringOf(jResp,"webCheckoutDetails.amazonPayRedirectUrl");
productType = CkJsonObject_stringOf(jResp,"productType");
chargePermissionType = CkJsonObject_stringOf(jResp,"chargePermissionType");
recurringMetadataFrequencyUnit = CkJsonObject_stringOf(jResp,"recurringMetadata.frequency.unit");
recurringMetadataFrequencyValue = CkJsonObject_stringOf(jResp,"recurringMetadata.frequency.value");
recurringMetadataAmountAmount = CkJsonObject_stringOf(jResp,"recurringMetadata.amount.amount");
recurringMetadataAmountCurrencyCode = CkJsonObject_stringOf(jResp,"recurringMetadata.amount.currencyCode");
paymentDetailsPaymentIntent = CkJsonObject_stringOf(jResp,"paymentDetails.paymentIntent");
paymentDetailsCanHandlePendingAuthorization = CkJsonObject_BoolOf(jResp,"paymentDetails.canHandlePendingAuthorization");
paymentDetailsChargeAmount = CkJsonObject_stringOf(jResp,"paymentDetails.chargeAmount");
paymentDetailsTotalOrderAmount = CkJsonObject_stringOf(jResp,"paymentDetails.totalOrderAmount");
paymentDetailsSoftDescriptor = CkJsonObject_stringOf(jResp,"paymentDetails.softDescriptor");
paymentDetailsPresentmentCurrency = CkJsonObject_stringOf(jResp,"paymentDetails.presentmentCurrency");
paymentDetailsAllowOvercharge = CkJsonObject_stringOf(jResp,"paymentDetails.allowOvercharge");
paymentDetailsExtendExpiration = CkJsonObject_stringOf(jResp,"paymentDetails.extendExpiration");
merchantMetadataMerchantReferenceId = CkJsonObject_stringOf(jResp,"merchantMetadata.merchantReferenceId");
merchantMetadataMerchantStoreName = CkJsonObject_stringOf(jResp,"merchantMetadata.merchantStoreName");
merchantMetadataNoteToBuyer = CkJsonObject_stringOf(jResp,"merchantMetadata.noteToBuyer");
merchantMetadataCustomInformation = CkJsonObject_stringOf(jResp,"merchantMetadata.customInformation");
supplementaryData = CkJsonObject_stringOf(jResp,"supplementaryData");
buyer = CkJsonObject_stringOf(jResp,"buyer");
billingAddress = CkJsonObject_stringOf(jResp,"billingAddress");
statusDetailsState = CkJsonObject_stringOf(jResp,"statusDetails.state");
statusDetailsReasonCode = CkJsonObject_stringOf(jResp,"statusDetails.reasonCode");
statusDetailsReasonDescription = CkJsonObject_stringOf(jResp,"statusDetails.reasonDescription");
statusDetailsLastUpdatedTimestamp = CkJsonObject_stringOf(jResp,"statusDetails.lastUpdatedTimestamp");
shippingAddress = CkJsonObject_stringOf(jResp,"shippingAddress");
platformId = CkJsonObject_stringOf(jResp,"platformId");
chargePermissionId = CkJsonObject_stringOf(jResp,"chargePermissionId");
chargeId = CkJsonObject_stringOf(jResp,"chargeId");
creationTimestamp = CkJsonObject_stringOf(jResp,"creationTimestamp");
expirationTimestamp = CkJsonObject_stringOf(jResp,"expirationTimestamp");
storeId = CkJsonObject_stringOf(jResp,"storeId");
deliverySpecificationsAddressRestrictionsType = CkJsonObject_stringOf(jResp,"deliverySpecifications.addressRestrictions.type");
providerMetadataProviderReferenceId = CkJsonObject_stringOf(jResp,"providerMetadata.providerReferenceId");
releaseEnvironment = CkJsonObject_stringOf(jResp,"releaseEnvironment");
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"paymentPreferences");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
nullVal = CkJsonObject_IsNullOf(jResp,"paymentPreferences[i]");
i = i + 1;
}
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"constraints");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
constraintId = CkJsonObject_stringOf(jResp,"constraints[i].constraintId");
description = CkJsonObject_stringOf(jResp,"constraints[i].description");
i = i + 1;
}
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"deliverySpecifications.specialRestrictions");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
strVal = CkJsonObject_stringOf(jResp,"deliverySpecifications.specialRestrictions[i]");
i = i + 1;
}
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
strVal = CkJsonObject_stringOf(jResp,"deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions[i]");
i = i + 1;
}
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"deliverySpecifications.addressRestrictions.restrictions.US.zipCodes");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
strVal = CkJsonObject_stringOf(jResp,"deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[i]");
i = i + 1;
}
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
strVal = CkJsonObject_stringOf(jResp,"deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[i]");
i = i + 1;
}
i = 0;
count_i = CkJsonObject_SizeOfArray(jResp,"deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions");
while (i < count_i) {
CkJsonObject_putI(jResp,i);
strVal = CkJsonObject_stringOf(jResp,"deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[i]");
i = i + 1;
}
CkHttp_Dispose(http);
CkJsonObject_Dispose(json);
CkPrivateKey_Dispose(privKey);
CkHttpResponse_Dispose(resp);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);
}