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Classic ASP Requires Chilkat v11.0.0+

Amazon Pay - Create Checkout Session

See more Amazon Pay Examples

Create a new Amazon Pay Checkout Session.

Chilkat Classic ASP Downloads

Classic ASP
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

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

set http = Server.CreateObject("Chilkat.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": {}
'        }
'      }
'    }
'  }

set json = Server.CreateObject("Chilkat.JsonObject")
success = json.UpdateString("webCheckoutDetails.checkoutReviewReturnUrl","https://a.com/merchant-review-page")
'  Make sure to use your storeId here:
success = json.UpdateString("storeId","amzn1.application-oa2-client.8b5e45312b5248b69eeaStoreId")
i = 0
json.I = i
success = json.UpdateString("scopes[i]","name")
i = i + 1
json.I = i
success = json.UpdateString("scopes[i]","email")
i = i + 1
json.I = i
success = json.UpdateString("scopes[i]","phoneNumber")
i = i + 1
json.I = i
success = json.UpdateString("scopes[i]","billingAddress")
success = json.UpdateString("deliverySpecifications.specialRestrictions[0]","RestrictPOBoxes")
success = json.UpdateString("deliverySpecifications.addressRestrictions.type","Allowed")
success = json.UpdateString("deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions[0]","WA")
success = json.UpdateString("deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[0]","95050")
success = json.UpdateString("deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[1]","93405")
success = json.UpdateString("deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[0]","72046")
success = json.UpdateString("deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[1]","72047")
success = json.UpdateString("deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[0]","AP")
success = 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.
set privKey = Server.CreateObject("Chilkat.PrivateKey")
success = privKey.LoadPemFile("C:/someDir/myAmazonPayPrivateKey.pem")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( privKey.LastErrorText) & "</pre>"
    Response.End
End If

'  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)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

'  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
set resp = Server.CreateObject("Chilkat.HttpResponse")
success = http.HttpJson("POST","https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/",json,"application/json",resp)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

set sbResponseBody = Server.CreateObject("Chilkat.StringBuilder")
success = resp.GetBodySb(sbResponseBody)
set jResp = Server.CreateObject("Chilkat.JsonObject")
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = 0

'  If the status code is not equal to 201, this will display error information.
Response.Write "<pre>" & Server.HTMLEncode( "Response Body:") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( jResp.Emit()) & "</pre>"

respStatusCode = resp.StatusCode
Response.Write "<pre>" & Server.HTMLEncode( "Response Status Code = " & respStatusCode) & "</pre>"
If (respStatusCode <> 201) Then

    '  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."
    '  	}

    Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>"
    Response.End
End If

'  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")
Do While i < count_i
    jResp.I = i
    nullVal = jResp.IsNullOf("paymentPreferences[i]")
    i = i + 1
Loop
i = 0
count_i = jResp.SizeOfArray("constraints")
Do While i < count_i
    jResp.I = i
    constraintId = jResp.StringOf("constraints[i].constraintId")
    description = jResp.StringOf("constraints[i].description")
    i = i + 1
Loop
i = 0
count_i = jResp.SizeOfArray("deliverySpecifications.specialRestrictions")
Do While i < count_i
    jResp.I = i
    strVal = jResp.StringOf("deliverySpecifications.specialRestrictions[i]")
    i = i + 1
Loop
i = 0
count_i = jResp.SizeOfArray("deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions")
Do While i < count_i
    jResp.I = i
    strVal = jResp.StringOf("deliverySpecifications.addressRestrictions.restrictions.US.statesOrRegions[i]")
    i = i + 1
Loop
i = 0
count_i = jResp.SizeOfArray("deliverySpecifications.addressRestrictions.restrictions.US.zipCodes")
Do While i < count_i
    jResp.I = i
    strVal = jResp.StringOf("deliverySpecifications.addressRestrictions.restrictions.US.zipCodes[i]")
    i = i + 1
Loop
i = 0
count_i = jResp.SizeOfArray("deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes")
Do While i < count_i
    jResp.I = i
    strVal = jResp.StringOf("deliverySpecifications.addressRestrictions.restrictions.GB.zipCodes[i]")
    i = i + 1
Loop
i = 0
count_i = jResp.SizeOfArray("deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions")
Do While i < count_i
    jResp.I = i
    strVal = jResp.StringOf("deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[i]")
    i = i + 1
Loop

%>
</body>
</html>