Sample code for 30+ languages & platforms
Java Requires Chilkat v11.0.0+

Amazon Pay - Create Checkout Session

See more Amazon Pay Examples

Create a new Amazon Pay Checkout Session.

Chilkat Java Downloads

Chilkat2 Java
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.HttpResponse;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.PrivateKey;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Http http = new Http();

        // 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": {}
        //       }
        //     }
        //   }
        // }

        JsonObject json = new JsonObject();
        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");
        int i = 0;
        json.setI(i);
        json.updateString("scopes[i]", "name");
        i = i + 1;
        json.setI(i);
        json.updateString("scopes[i]", "email");
        i = i + 1;
        json.setI(i);
        json.updateString("scopes[i]", "phoneNumber");
        i = i + 1;
        json.setI(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.
        PrivateKey privKey = new PrivateKey();
        try {
            privKey.loadPemFile("C:/someDir/myAmazonPayPrivateKey.pem");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            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
        String publicKeyId = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW";
        try {
            http.setAuthPrivateKey(publicKeyId, privKey);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            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

        http.setAccept("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
        HttpResponse resp = new HttpResponse();
        try {
            http.httpJson("POST", "https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/", json, "application/json", resp);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        StringBuilder sbResponseBody = new StringBuilder();
        resp.getBodySb(sbResponseBody);
        JsonObject jResp = new JsonObject();
        jResp.loadSb(sbResponseBody);
        jResp.setEmitCompact(false);

        // If the status code is not equal to 201, this will display error information.
        System.out.println("Response Body:");
        System.out.println(jResp.emit());

        int respStatusCode = resp.getStatusCode();
        System.out.println("Response Status Code = " + 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."
            //     }

            System.out.println("Failed.");
            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

        boolean nullVal = false;
        String constraintId = "";
        String description = "";
        String strVal = "";

        String checkoutSessionId = jResp.stringOf("checkoutSessionId");
        String webCheckoutDetailsCheckoutReviewReturnUrl = jResp.stringOf("webCheckoutDetails.checkoutReviewReturnUrl");
        String webCheckoutDetailsCheckoutResultReturnUrl = jResp.stringOf("webCheckoutDetails.checkoutResultReturnUrl");
        String webCheckoutDetailsCheckoutCancelUrl = jResp.stringOf("webCheckoutDetails.checkoutCancelUrl");
        String webCheckoutDetailsAmazonPayRedirectUrl = jResp.stringOf("webCheckoutDetails.amazonPayRedirectUrl");
        String productType = jResp.stringOf("productType");
        String chargePermissionType = jResp.stringOf("chargePermissionType");
        String recurringMetadataFrequencyUnit = jResp.stringOf("recurringMetadata.frequency.unit");
        String recurringMetadataFrequencyValue = jResp.stringOf("recurringMetadata.frequency.value");
        String recurringMetadataAmountAmount = jResp.stringOf("recurringMetadata.amount.amount");
        String recurringMetadataAmountCurrencyCode = jResp.stringOf("recurringMetadata.amount.currencyCode");
        String paymentDetailsPaymentIntent = jResp.stringOf("paymentDetails.paymentIntent");
        boolean paymentDetailsCanHandlePendingAuthorization = jResp.boolOf("paymentDetails.canHandlePendingAuthorization");
        String paymentDetailsChargeAmount = jResp.stringOf("paymentDetails.chargeAmount");
        String paymentDetailsTotalOrderAmount = jResp.stringOf("paymentDetails.totalOrderAmount");
        String paymentDetailsSoftDescriptor = jResp.stringOf("paymentDetails.softDescriptor");
        String paymentDetailsPresentmentCurrency = jResp.stringOf("paymentDetails.presentmentCurrency");
        String paymentDetailsAllowOvercharge = jResp.stringOf("paymentDetails.allowOvercharge");
        String paymentDetailsExtendExpiration = jResp.stringOf("paymentDetails.extendExpiration");
        String merchantMetadataMerchantReferenceId = jResp.stringOf("merchantMetadata.merchantReferenceId");
        String merchantMetadataMerchantStoreName = jResp.stringOf("merchantMetadata.merchantStoreName");
        String merchantMetadataNoteToBuyer = jResp.stringOf("merchantMetadata.noteToBuyer");
        String merchantMetadataCustomInformation = jResp.stringOf("merchantMetadata.customInformation");
        String supplementaryData = jResp.stringOf("supplementaryData");
        String buyer = jResp.stringOf("buyer");
        String billingAddress = jResp.stringOf("billingAddress");
        String statusDetailsState = jResp.stringOf("statusDetails.state");
        String statusDetailsReasonCode = jResp.stringOf("statusDetails.reasonCode");
        String statusDetailsReasonDescription = jResp.stringOf("statusDetails.reasonDescription");
        String statusDetailsLastUpdatedTimestamp = jResp.stringOf("statusDetails.lastUpdatedTimestamp");
        String shippingAddress = jResp.stringOf("shippingAddress");
        String platformId = jResp.stringOf("platformId");
        String chargePermissionId = jResp.stringOf("chargePermissionId");
        String chargeId = jResp.stringOf("chargeId");
        String creationTimestamp = jResp.stringOf("creationTimestamp");
        String expirationTimestamp = jResp.stringOf("expirationTimestamp");
        String storeId = jResp.stringOf("storeId");
        String deliverySpecificationsAddressRestrictionsType = jResp.stringOf("deliverySpecifications.addressRestrictions.type");
        String providerMetadataProviderReferenceId = jResp.stringOf("providerMetadata.providerReferenceId");
        String releaseEnvironment = jResp.stringOf("releaseEnvironment");
        i = 0;
        int count_i = jResp.sizeOfArray("paymentPreferences");
        while (i < count_i) {
            jResp.setI(i);
            nullVal = jResp.isNullOf("paymentPreferences[i]");
            i = i + 1;
        }

        i = 0;
        count_i = jResp.sizeOfArray("constraints");
        while (i < count_i) {
            jResp.setI(i);
            constraintId = jResp.stringOf("constraints[i].constraintId");
            description = jResp.stringOf("constraints[i].description");
            i = i + 1;
        }

        i = 0;
        count_i = jResp.sizeOfArray("deliverySpecifications.specialRestrictions");
        while (i < count_i) {
            jResp.setI(i);
            strVal = jResp.stringOf("deliverySpecifications.specialRestrictions[i]");
            i = i + 1;
        }

        i = 0;
        count_i = jResp.sizeOfArray("deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions");
        while (i < count_i) {
            jResp.setI(i);
            strVal = jResp.stringOf("deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions[i]");
            i = i + 1;
        }

        i = 0;
        count_i = jResp.sizeOfArray("deliverySpecifications.addressRestrictions.restrictions.US.zipCodes");
        while (i < count_i) {
            jResp.setI(i);
            strVal = jResp.stringOf("deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[i]");
            i = i + 1;
        }

        i = 0;
        count_i = jResp.sizeOfArray("deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes");
        while (i < count_i) {
            jResp.setI(i);
            strVal = jResp.stringOf("deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[i]");
            i = i + 1;
        }

        i = 0;
        count_i = jResp.sizeOfArray("deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions");
        while (i < count_i) {
            jResp.setI(i);
            strVal = jResp.stringOf("deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[i]");
            i = i + 1;
        }
    }
}