Delphi DLL
Delphi DLL
Amazon Pay - Get Checkout Session
See more Amazon Pay Examples
Get Checkout Session details includes buyer info, payment instrument details, and shipping address.Chilkat Delphi DLL Downloads
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, StringBuilder, PrivateKey, JsonObject;
...
procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
http: HCkHttp;
privKey: HCkPrivateKey;
publicKeyId: PWideChar;
respStatusCode: Integer;
sbResponseBody: HCkStringBuilder;
jResp: HCkJsonObject;
paymentDescriptor: PWideChar;
constraintId: PWideChar;
description: PWideChar;
strVal: PWideChar;
checkoutSessionId: PWideChar;
webCheckoutDetailsCheckoutReviewReturnUrl: PWideChar;
webCheckoutDetailsCheckoutResultReturnUrl: PWideChar;
webCheckoutDetailsCheckoutCancelUrl: PWideChar;
webCheckoutDetailsAmazonPayRedirectUrl: PWideChar;
chargePermissionType: PWideChar;
recurringMetadataFrequencyUnit: PWideChar;
recurringMetadataFrequencyValue: PWideChar;
recurringMetadataAmountAmount: PWideChar;
recurringMetadataAmountCurrencyCode: PWideChar;
productType: PWideChar;
paymentDetailsPaymentIntent: PWideChar;
paymentDetailsCanHandlePendingAuthorization: Boolean;
paymentDetailsChargeAmount: PWideChar;
paymentDetailsTotalOrderAmount: PWideChar;
paymentDetailsSoftDescriptor: PWideChar;
paymentDetailsPresentmentCurrency: PWideChar;
paymentDetailsAllowOvercharge: PWideChar;
paymentDetailsExtendExpiration: PWideChar;
merchantMetadataMerchantReferenceId: PWideChar;
merchantMetadataMerchantStoreName: PWideChar;
merchantMetadataNoteToBuyer: PWideChar;
merchantMetadataCustomInformation: PWideChar;
supplementaryData: PWideChar;
buyerBuyerId: PWideChar;
buyerName: PWideChar;
buyerEmail: PWideChar;
buyerPhoneNumber: PWideChar;
buyerPrimeMembershipTypes: PWideChar;
billingAddressName: PWideChar;
billingAddressAddressLine1: PWideChar;
billingAddressAddressLine2: PWideChar;
billingAddressAddressLine3: PWideChar;
billingAddressCity: PWideChar;
billingAddressCounty: PWideChar;
billingAddressDistrict: PWideChar;
billingAddressStateOrRegion: PWideChar;
billingAddressPostalCode: PWideChar;
billingAddressCountryCode: PWideChar;
statusDetailsState: PWideChar;
statusDetailsReasonCode: PWideChar;
statusDetailsReasonDescription: PWideChar;
statusDetailsLastUpdatedTimestamp: PWideChar;
shippingAddressName: PWideChar;
shippingAddressAddressLine1: PWideChar;
shippingAddressAddressLine2: PWideChar;
shippingAddressAddressLine3: PWideChar;
shippingAddressCity: PWideChar;
shippingAddressCounty: PWideChar;
shippingAddressDistrict: PWideChar;
shippingAddressStateOrRegion: PWideChar;
shippingAddressPostalCode: PWideChar;
shippingAddressCountryCode: PWideChar;
shippingAddressPhoneNumber: PWideChar;
platformId: PWideChar;
chargePermissionId: PWideChar;
chargeId: PWideChar;
creationTimestamp: PWideChar;
expirationTimestamp: PWideChar;
storeId: PWideChar;
deliverySpecificationsAddressRestrictionsType: PWideChar;
providerMetadataProviderReferenceId: PWideChar;
releaseEnvironment: PWideChar;
i: Integer;
count_i: Integer;
begin
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/:checkoutSessionId"
// -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.
privKey := CkPrivateKey_Create();
success := CkPrivateKey_LoadPemFile(privKey,'C:/someDir/myAmazonPayPrivateKey.pem');
if (success = False) then
begin
Memo1.Lines.Add(CkPrivateKey__lastErrorText(privKey));
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 := CkHttp_SetAuthPrivateKey(http,publicKeyId,privKey);
if (success = False) then
begin
Memo1.Lines.Add(CkHttp__lastErrorText(http));
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
// Authorization
CkHttp_putAccept(http,'application/json');
respStatusCode := 0;
sbResponseBody := CkStringBuilder_Create();
success := CkHttp_SetUrlVar(http,'sessionId','62b7d028-6c7c-4a43-b077-3897dff27c5b');
// 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 := CkHttp_QuickGetSb(http,'https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/{$sessionId}',sbResponseBody);
if (success = False) then
begin
// If the LastStatus is not equal to 0, then we received a response, but it was an error response.
respStatusCode := CkHttp_getLastStatus(http);
if (respStatusCode <> 0) then
begin
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
// A sample response body for the case where the session ID does not exist:
// {"reasonCode":"ResourceNotFound","message":"Resource you are trying to access is not available. Requested path '/sandbox/v2/checkoutSessions/bd504926-f659-4ad7-a1a9-9a747aaf5275'"}
Memo1.Lines.Add('Response body:');
Memo1.Lines.Add(CkHttp__lastResponseBody(http));
end
else
begin
Memo1.Lines.Add(CkHttp__lastErrorText(http));
end;
Exit;
end;
jResp := CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);
CkJsonObject_putEmitCompact(jResp,False);
Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(CkJsonObject__emit(jResp));
respStatusCode := CkHttp_getLastStatus(http);
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
// We expect a 200 status code for success.
// Note: Some Amazon Pay API calls return 200 for success, others return 201.
if (respStatusCode <> 200) then
begin
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
// },
// "chargePermissionType": "Recurring",
// "recurringMetadata": {
// "frequency": {
// "unit": "Month",
// "value": "1"
// },
// "amount": {
// "amount": "30",
// "currencyCode": "USD"
// }
// },
// "productType": "PayAndShip",
// "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": {
// "buyerId": "buyerId",
// "name": "name-1",
// "email": "name@amazon.com",
// "phoneNumber": "800-000-0000",
// "primeMembershipTypes": null
// },
// "billingAddress": {
// "name": "Work",
// "addressLine1": "440 Terry Ave",
// "addressLine2": "",
// "addressLine3": "",
// "city": "Seattle",
// "county": "King",
// "district": "Seattle",
// "stateOrRegion": "WA",
// "postalCode": "98121",
// "countryCode": "US"
// },
// "paymentPreferences": [
// {
// "paymentDescriptor": "Your selected Amazon payment method"
// }
// ],
// "statusDetails": {
// "state": "Open",
// "reasonCode": null,
// "reasonDescription": null,
// "lastUpdatedTimestamp": "20191015T204327Z"
// },
// "shippingAddress": {
// "name": "Susie Smith",
// "addressLine1": "10 Ditka Ave",
// "addressLine2": "Suite 2500",
// "addressLine3": null,
// "city": "Chicago",
// "county": null,
// "district": null,
// "stateOrRegion": "IL",
// "postalCode": "60602",
// "countryCode": "US",
// "phoneNumber": "800-000-0000"
// },
// "platformId": null,
// "chargePermissionId": null,
// "chargeId": null,
// "constraints": [
// {
// "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 := 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');
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');
productType := CkJsonObject__stringOf(jResp,'productType');
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');
buyerBuyerId := CkJsonObject__stringOf(jResp,'buyer.buyerId');
buyerName := CkJsonObject__stringOf(jResp,'buyer.name');
buyerEmail := CkJsonObject__stringOf(jResp,'buyer.email');
buyerPhoneNumber := CkJsonObject__stringOf(jResp,'buyer.phoneNumber');
buyerPrimeMembershipTypes := CkJsonObject__stringOf(jResp,'buyer.primeMembershipTypes');
billingAddressName := CkJsonObject__stringOf(jResp,'billingAddress.name');
billingAddressAddressLine1 := CkJsonObject__stringOf(jResp,'billingAddress.addressLine1');
billingAddressAddressLine2 := CkJsonObject__stringOf(jResp,'billingAddress.addressLine2');
billingAddressAddressLine3 := CkJsonObject__stringOf(jResp,'billingAddress.addressLine3');
billingAddressCity := CkJsonObject__stringOf(jResp,'billingAddress.city');
billingAddressCounty := CkJsonObject__stringOf(jResp,'billingAddress.county');
billingAddressDistrict := CkJsonObject__stringOf(jResp,'billingAddress.district');
billingAddressStateOrRegion := CkJsonObject__stringOf(jResp,'billingAddress.stateOrRegion');
billingAddressPostalCode := CkJsonObject__stringOf(jResp,'billingAddress.postalCode');
billingAddressCountryCode := CkJsonObject__stringOf(jResp,'billingAddress.countryCode');
statusDetailsState := CkJsonObject__stringOf(jResp,'statusDetails.state');
statusDetailsReasonCode := CkJsonObject__stringOf(jResp,'statusDetails.reasonCode');
statusDetailsReasonDescription := CkJsonObject__stringOf(jResp,'statusDetails.reasonDescription');
statusDetailsLastUpdatedTimestamp := CkJsonObject__stringOf(jResp,'statusDetails.lastUpdatedTimestamp');
shippingAddressName := CkJsonObject__stringOf(jResp,'shippingAddress.name');
shippingAddressAddressLine1 := CkJsonObject__stringOf(jResp,'shippingAddress.addressLine1');
shippingAddressAddressLine2 := CkJsonObject__stringOf(jResp,'shippingAddress.addressLine2');
shippingAddressAddressLine3 := CkJsonObject__stringOf(jResp,'shippingAddress.addressLine3');
shippingAddressCity := CkJsonObject__stringOf(jResp,'shippingAddress.city');
shippingAddressCounty := CkJsonObject__stringOf(jResp,'shippingAddress.county');
shippingAddressDistrict := CkJsonObject__stringOf(jResp,'shippingAddress.district');
shippingAddressStateOrRegion := CkJsonObject__stringOf(jResp,'shippingAddress.stateOrRegion');
shippingAddressPostalCode := CkJsonObject__stringOf(jResp,'shippingAddress.postalCode');
shippingAddressCountryCode := CkJsonObject__stringOf(jResp,'shippingAddress.countryCode');
shippingAddressPhoneNumber := CkJsonObject__stringOf(jResp,'shippingAddress.phoneNumber');
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 do
begin
CkJsonObject_putI(jResp,i);
paymentDescriptor := CkJsonObject__stringOf(jResp,'paymentPreferences[i].paymentDescriptor');
i := i + 1;
end;
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'constraints');
while i < count_i do
begin
CkJsonObject_putI(jResp,i);
constraintId := CkJsonObject__stringOf(jResp,'constraints[i].constraintId');
description := CkJsonObject__stringOf(jResp,'constraints[i].description');
i := i + 1;
end;
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'deliverySpecifications.specialRestrictions');
while i < count_i do
begin
CkJsonObject_putI(jResp,i);
strVal := CkJsonObject__stringOf(jResp,'deliverySpecifications.specialRestrictions[i]');
i := i + 1;
end;
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions');
while i < count_i do
begin
CkJsonObject_putI(jResp,i);
strVal := CkJsonObject__stringOf(jResp,'deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions[i]');
i := i + 1;
end;
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'deliverySpecifications.addressRestrictions.restrictions.US.zipCodes');
while i < count_i do
begin
CkJsonObject_putI(jResp,i);
strVal := CkJsonObject__stringOf(jResp,'deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[i]');
i := i + 1;
end;
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes');
while i < count_i do
begin
CkJsonObject_putI(jResp,i);
strVal := CkJsonObject__stringOf(jResp,'deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[i]');
i := i + 1;
end;
i := 0;
count_i := CkJsonObject_SizeOfArray(jResp,'deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions');
while i < count_i do
begin
CkJsonObject_putI(jResp,i);
strVal := CkJsonObject__stringOf(jResp,'deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[i]');
i := i + 1;
end;
CkHttp_Dispose(http);
CkPrivateKey_Dispose(privKey);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);
end;