Delphi ActiveX Requires Chilkat v11.0.0+
Delphi ActiveX
Amazon Pay - Create Checkout Session
See more Amazon Pay Examples
Create a new Amazon Pay Checkout Session.Chilkat Delphi ActiveX Downloads
var
success: Integer;
http: TChilkatHttp;
json: TChilkatJsonObject;
i: Integer;
privKey: TPrivateKey;
publicKeyId: WideString;
resp: TChilkatHttpResponse;
sbResponseBody: TChilkatStringBuilder;
jResp: TChilkatJsonObject;
respStatusCode: Integer;
nullVal: Integer;
constraintId: WideString;
description: WideString;
strVal: WideString;
checkoutSessionId: WideString;
webCheckoutDetailsCheckoutReviewReturnUrl: WideString;
webCheckoutDetailsCheckoutResultReturnUrl: WideString;
webCheckoutDetailsCheckoutCancelUrl: WideString;
webCheckoutDetailsAmazonPayRedirectUrl: WideString;
productType: WideString;
chargePermissionType: WideString;
recurringMetadataFrequencyUnit: WideString;
recurringMetadataFrequencyValue: WideString;
recurringMetadataAmountAmount: WideString;
recurringMetadataAmountCurrencyCode: WideString;
paymentDetailsPaymentIntent: WideString;
paymentDetailsCanHandlePendingAuthorization: Integer;
paymentDetailsChargeAmount: WideString;
paymentDetailsTotalOrderAmount: WideString;
paymentDetailsSoftDescriptor: WideString;
paymentDetailsPresentmentCurrency: WideString;
paymentDetailsAllowOvercharge: WideString;
paymentDetailsExtendExpiration: WideString;
merchantMetadataMerchantReferenceId: WideString;
merchantMetadataMerchantStoreName: WideString;
merchantMetadataNoteToBuyer: WideString;
merchantMetadataCustomInformation: WideString;
supplementaryData: WideString;
buyer: WideString;
billingAddress: WideString;
statusDetailsState: WideString;
statusDetailsReasonCode: WideString;
statusDetailsReasonDescription: WideString;
statusDetailsLastUpdatedTimestamp: WideString;
shippingAddress: WideString;
platformId: WideString;
chargePermissionId: WideString;
chargeId: WideString;
creationTimestamp: WideString;
expirationTimestamp: WideString;
storeId: WideString;
deliverySpecificationsAddressRestrictionsType: WideString;
providerMetadataProviderReferenceId: WideString;
releaseEnvironment: WideString;
count_i: Integer;
begin
success := 0;
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http := TChilkatHttp.Create(Self);
// 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 := TChilkatJsonObject.Create(Self);
json.UpdateString('webCheckoutDetails.checkoutReviewReturnUrl','https://a.com/merchant-review-page');
// Make sure to use your storeId here:
json.UpdateString('storeId','amzn1.application-oa2-client.8b5e45312b5248b69eeaStoreId');
i := 0;
json.I := i;
json.UpdateString('scopes[i]','name');
i := i + 1;
json.I := i;
json.UpdateString('scopes[i]','email');
i := i + 1;
json.I := i;
json.UpdateString('scopes[i]','phoneNumber');
i := i + 1;
json.I := i;
json.UpdateString('scopes[i]','billingAddress');
json.UpdateString('deliverySpecifications.specialRestrictions[0]','RestrictPOBoxes');
json.UpdateString('deliverySpecifications.addressRestrictions.type','Allowed');
json.UpdateString('deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions[0]','WA');
json.UpdateString('deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[0]','95050');
json.UpdateString('deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[1]','93405');
json.UpdateString('deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[0]','72046');
json.UpdateString('deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[1]','72047');
json.UpdateString('deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[0]','AP');
json.UpdateNewObject('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 := TPrivateKey.Create(Self);
success := privKey.LoadPemFile('C:/someDir/myAmazonPayPrivateKey.pem');
if (success = 0) then
begin
Memo1.Lines.Add(privKey.LastErrorText);
Exit;
end;
// 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 := http.SetAuthPrivateKey(publicKeyId,privKey.ControlInterface);
if (success = 0) then
begin
Memo1.Lines.Add(http.LastErrorText);
Exit;
end;
// 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
http.Accept := '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 := TChilkatHttpResponse.Create(Self);
success := http.HttpJson('POST','https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/',json.ControlInterface,'application/json',resp.ControlInterface);
if (success = 0) then
begin
Memo1.Lines.Add(http.LastErrorText);
Exit;
end;
sbResponseBody := TChilkatStringBuilder.Create(Self);
resp.GetBodySb(sbResponseBody.ControlInterface);
jResp := TChilkatJsonObject.Create(Self);
jResp.LoadSb(sbResponseBody.ControlInterface);
jResp.EmitCompact := 0;
// If the status code is not equal to 201, this will display error information.
Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(jResp.Emit());
respStatusCode := resp.StatusCode;
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
if (respStatusCode <> 201) then
begin
// 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."
// }
Memo1.Lines.Add('Failed.');
Exit;
end;
// 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
checkoutSessionId := jResp.StringOf('checkoutSessionId');
webCheckoutDetailsCheckoutReviewReturnUrl := jResp.StringOf('webCheckoutDetails.checkoutReviewReturnUrl');
webCheckoutDetailsCheckoutResultReturnUrl := jResp.StringOf('webCheckoutDetails.checkoutResultReturnUrl');
webCheckoutDetailsCheckoutCancelUrl := jResp.StringOf('webCheckoutDetails.checkoutCancelUrl');
webCheckoutDetailsAmazonPayRedirectUrl := jResp.StringOf('webCheckoutDetails.amazonPayRedirectUrl');
productType := jResp.StringOf('productType');
chargePermissionType := jResp.StringOf('chargePermissionType');
recurringMetadataFrequencyUnit := jResp.StringOf('recurringMetadata.frequency.unit');
recurringMetadataFrequencyValue := jResp.StringOf('recurringMetadata.frequency.value');
recurringMetadataAmountAmount := jResp.StringOf('recurringMetadata.amount.amount');
recurringMetadataAmountCurrencyCode := jResp.StringOf('recurringMetadata.amount.currencyCode');
paymentDetailsPaymentIntent := jResp.StringOf('paymentDetails.paymentIntent');
paymentDetailsCanHandlePendingAuthorization := jResp.BoolOf('paymentDetails.canHandlePendingAuthorization');
paymentDetailsChargeAmount := jResp.StringOf('paymentDetails.chargeAmount');
paymentDetailsTotalOrderAmount := jResp.StringOf('paymentDetails.totalOrderAmount');
paymentDetailsSoftDescriptor := jResp.StringOf('paymentDetails.softDescriptor');
paymentDetailsPresentmentCurrency := jResp.StringOf('paymentDetails.presentmentCurrency');
paymentDetailsAllowOvercharge := jResp.StringOf('paymentDetails.allowOvercharge');
paymentDetailsExtendExpiration := jResp.StringOf('paymentDetails.extendExpiration');
merchantMetadataMerchantReferenceId := jResp.StringOf('merchantMetadata.merchantReferenceId');
merchantMetadataMerchantStoreName := jResp.StringOf('merchantMetadata.merchantStoreName');
merchantMetadataNoteToBuyer := jResp.StringOf('merchantMetadata.noteToBuyer');
merchantMetadataCustomInformation := jResp.StringOf('merchantMetadata.customInformation');
supplementaryData := jResp.StringOf('supplementaryData');
buyer := jResp.StringOf('buyer');
billingAddress := jResp.StringOf('billingAddress');
statusDetailsState := jResp.StringOf('statusDetails.state');
statusDetailsReasonCode := jResp.StringOf('statusDetails.reasonCode');
statusDetailsReasonDescription := jResp.StringOf('statusDetails.reasonDescription');
statusDetailsLastUpdatedTimestamp := jResp.StringOf('statusDetails.lastUpdatedTimestamp');
shippingAddress := jResp.StringOf('shippingAddress');
platformId := jResp.StringOf('platformId');
chargePermissionId := jResp.StringOf('chargePermissionId');
chargeId := jResp.StringOf('chargeId');
creationTimestamp := jResp.StringOf('creationTimestamp');
expirationTimestamp := jResp.StringOf('expirationTimestamp');
storeId := jResp.StringOf('storeId');
deliverySpecificationsAddressRestrictionsType := jResp.StringOf('deliverySpecifications.addressRestrictions.type');
providerMetadataProviderReferenceId := jResp.StringOf('providerMetadata.providerReferenceId');
releaseEnvironment := jResp.StringOf('releaseEnvironment');
i := 0;
count_i := jResp.SizeOfArray('paymentPreferences');
while i < count_i do
begin
jResp.I := i;
nullVal := jResp.IsNullOf('paymentPreferences[i]');
i := i + 1;
end;
i := 0;
count_i := jResp.SizeOfArray('constraints');
while i < count_i do
begin
jResp.I := i;
constraintId := jResp.StringOf('constraints[i].constraintId');
description := jResp.StringOf('constraints[i].description');
i := i + 1;
end;
i := 0;
count_i := jResp.SizeOfArray('deliverySpecifications.specialRestrictions');
while i < count_i do
begin
jResp.I := i;
strVal := jResp.StringOf('deliverySpecifications.specialRestrictions[i]');
i := i + 1;
end;
i := 0;
count_i := jResp.SizeOfArray('deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions');
while i < count_i do
begin
jResp.I := i;
strVal := jResp.StringOf('deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions[i]');
i := i + 1;
end;
i := 0;
count_i := jResp.SizeOfArray('deliverySpecifications.addressRestrictions.restrictions.US.zipCodes');
while i < count_i do
begin
jResp.I := i;
strVal := jResp.StringOf('deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[i]');
i := i + 1;
end;
i := 0;
count_i := jResp.SizeOfArray('deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes');
while i < count_i do
begin
jResp.I := i;
strVal := jResp.StringOf('deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[i]');
i := i + 1;
end;
i := 0;
count_i := jResp.SizeOfArray('deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions');
while i < count_i do
begin
jResp.I := i;
strVal := jResp.StringOf('deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[i]');
i := i + 1;
end;