(Visual FoxPro) Amazon Pay - Complete Checkout Session

See more Amazon Pay Examples

Complete Checkout Session after the buyer returns to checkoutResultReturnUrl to finalize the paymentIntent.

For more information, see https://developer.amazon.com/docs/amazon-pay-api-v2/checkout-session.html#complete-checkout-session

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL loHttp
LOCAL lnSuccess
LOCAL loJson
LOCAL loPrivKey
LOCAL lcPublicKeyId
LOCAL loResp
LOCAL loSbResponseBody
LOCAL loJResp
LOCAL lnRespStatusCode
LOCAL lnNullVal
LOCAL lcCheckoutSessionId
LOCAL lcWebCheckoutDetails
LOCAL lcChargePermissionType
LOCAL lcRecurringMetadata
LOCAL lcProductType
LOCAL lcPaymentDetails
LOCAL lcMerchantMetadata
LOCAL lcSupplementaryData
LOCAL lcBuyer
LOCAL lcBillingAddress
LOCAL lcStatusDetailsState
LOCAL lcStatusDetailsReasonCode
LOCAL lcStatusDetailsReasonDescription
LOCAL lcStatusDetailsLastUpdatedTimestamp
LOCAL lcShippingAddress
LOCAL lcPlatformId
LOCAL lcChargePermissionId
LOCAL lcChargeId
LOCAL lcCreationTimestamp
LOCAL lcExpirationTimestamp
LOCAL lcStoreId
LOCAL lcDeliverySpecifications
LOCAL lcProviderMetadata
LOCAL lcReleaseEnvironment
LOCAL i
LOCAL lnCount_i

* This example assumes the Chilkat API to have been previously unlocked.
* See Global Unlock Sample for sample code.

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Http')
loHttp = CreateObject('Chilkat.Http')

* Implements the following CURL command:

* curl "https://pay-api.amazon.com/:version/checkoutSessions/:checkoutSessionId/complete" \
* -X POST
* -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
* -H "x-amz-pay-date:20201012T235046Z"
* -H "x-amz-pay-idempotency-key:AVLo5tI10BHgEk2jEXAMPLEKEY"
* -d '{
*     "chargeAmount": {
*         "amount": "14.00",
*         "currencyCode": "USD"
*     }
* }'

* 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.

* {
*   "chargeAmount": {
*     "amount": "14.00",
*     "currencyCode": "USD"
*   }
* }

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.JsonObject')
loJson = CreateObject('Chilkat.JsonObject')
loJson.UpdateString("chargeAmount.amount","14.00")
loJson.UpdateString("chargeAmount.currencyCode","USD")

* 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.
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.PrivateKey')
loPrivKey = CreateObject('Chilkat.PrivateKey')
lnSuccess = loPrivKey.LoadPemFile("C:/someDir/myAmazonPayPrivateKey.pem")
IF (lnSuccess = 0) THEN
    ? loPrivKey.LastErrorText
    RELEASE loHttp
    RELEASE loJson
    RELEASE loPrivKey
    CANCEL
ENDIF

* 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
lcPublicKeyId = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW"
lnSuccess = loHttp.SetAuthPrivateKey(lcPublicKeyId,loPrivKey)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loJson
    RELEASE loPrivKey
    CANCEL
ENDIF

* 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

loHttp.Accept = "application/json"

* To use the live system, replace "sandbox" with "live" in the URL passed to PTextSb.
* Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
lnSuccess = loHttp.SetUrlVar("sessionId","62b7d028-6c7c-4a43-b077-3897dff27c5b")
loResp = loHttp.PostJson3("https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/{$sessionId}/complete","application/json",loJson)
IF (loHttp.LastMethodSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loJson
    RELEASE loPrivKey
    CANCEL
ENDIF

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.StringBuilder')
loSbResponseBody = CreateObject('Chilkat.StringBuilder')
loResp.GetBodySb(loSbResponseBody)
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.JsonObject')
loJResp = CreateObject('Chilkat.JsonObject')
loJResp.LoadSb(loSbResponseBody)
loJResp.EmitCompact = 0

* If the status code is not equal to 200, this will display error information.
? "Response Body:"
? loJResp.Emit()

lnRespStatusCode = loResp.StatusCode
? "Response Status Code = " + STR(lnRespStatusCode)
IF (lnRespStatusCode <> 200) THEN

    * 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'"
    * 	}

    * Another sample failure response (status code = 422)
    * 	{
    * 	  "reasonCode": "InvalidCheckoutSessionStatus",
    * 	  "message": "You tried to call an operation on a Checkout Session that is in a state where that operation is not allowed"
    * 	}

    ? "Failed."
    RELEASE loResp
    RELEASE loHttp
    RELEASE loJson
    RELEASE loPrivKey
    RELEASE loSbResponseBody
    RELEASE loJResp
    CANCEL
ENDIF

RELEASE loResp

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

* {
*   "checkoutSessionId": "bd504926-f659-4ad7-a1a9-9a747aaf5275",
*   "webCheckoutDetails": null,
*   "chargePermissionType": "OneTime",
*   "recurringMetadata": null,
*   "productType": null,
*   "paymentDetails": null,
*   "merchantMetadata": null,
*   "supplementaryData": null,
*   "buyer": null,
*   "billingAddress": null,
*   "paymentPreferences": [
*     null
*   ],
*   "statusDetails": {
*     "state": "Completed",
*     "reasonCode": null,
*     "reasonDescription": null,
*     "lastUpdatedTimestamp": "20191015T204327Z"
*   },
*   "shippingAddress": null,
*   "platformId": null,
*   "chargePermissionId": "S01-5105180-3221187",
*   "chargeId": "S01-5105180-3221187-C056351",
*   "constraints": [
*     null
*   ],
*   "creationTimestamp": "20191015T204313Z",
*   "expirationTimestamp": null,
*   "storeId": null,
*   "deliverySpecifications": null,
*   "providerMetadata": null,
*   "releaseEnvironment": null
* }

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

lcCheckoutSessionId = loJResp.StringOf("checkoutSessionId")
lcWebCheckoutDetails = loJResp.StringOf("webCheckoutDetails")
lcChargePermissionType = loJResp.StringOf("chargePermissionType")
lcRecurringMetadata = loJResp.StringOf("recurringMetadata")
lcProductType = loJResp.StringOf("productType")
lcPaymentDetails = loJResp.StringOf("paymentDetails")
lcMerchantMetadata = loJResp.StringOf("merchantMetadata")
lcSupplementaryData = loJResp.StringOf("supplementaryData")
lcBuyer = loJResp.StringOf("buyer")
lcBillingAddress = loJResp.StringOf("billingAddress")
lcStatusDetailsState = loJResp.StringOf("statusDetails.state")
lcStatusDetailsReasonCode = loJResp.StringOf("statusDetails.reasonCode")
lcStatusDetailsReasonDescription = loJResp.StringOf("statusDetails.reasonDescription")
lcStatusDetailsLastUpdatedTimestamp = loJResp.StringOf("statusDetails.lastUpdatedTimestamp")
lcShippingAddress = loJResp.StringOf("shippingAddress")
lcPlatformId = loJResp.StringOf("platformId")
lcChargePermissionId = loJResp.StringOf("chargePermissionId")
lcChargeId = loJResp.StringOf("chargeId")
lcCreationTimestamp = loJResp.StringOf("creationTimestamp")
lcExpirationTimestamp = loJResp.StringOf("expirationTimestamp")
lcStoreId = loJResp.StringOf("storeId")
lcDeliverySpecifications = loJResp.StringOf("deliverySpecifications")
lcProviderMetadata = loJResp.StringOf("providerMetadata")
lcReleaseEnvironment = loJResp.StringOf("releaseEnvironment")
i = 0
lnCount_i = loJResp.SizeOfArray("paymentPreferences")
DO WHILE i < lnCount_i
    loJResp.I = i
    lnNullVal = loJResp.IsNullOf("paymentPreferences[i]")
    i = i + 1
ENDDO
i = 0
lnCount_i = loJResp.SizeOfArray("constraints")
DO WHILE i < lnCount_i
    loJResp.I = i
    lnNullVal = loJResp.IsNullOf("constraints[i]")
    i = i + 1
ENDDO

RELEASE loHttp
RELEASE loJson
RELEASE loPrivKey
RELEASE loSbResponseBody
RELEASE loJResp