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Amazon Pay - Create Checkout Session
See more Amazon Pay Examples
Create a new Amazon Pay Checkout Session.Chilkat Go Downloads
success := false
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
http := chilkat.NewHttp()
// 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 := chilkat.NewJsonObject()
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.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.
privKey := chilkat.NewPrivateKey()
success = privKey.LoadPemFile("C:/someDir/myAmazonPayPrivateKey.pem")
if success == false {
fmt.Println(privKey.LastErrorText())
http.DisposeHttp()
json.DisposeJsonObject()
privKey.DisposePrivateKey()
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
publicKeyId := "SANDBOX-AHEGSJCM3L2S637RBGABLAFW"
success = http.SetAuthPrivateKey(publicKeyId,privKey)
if success == false {
fmt.Println(http.LastErrorText())
http.DisposeHttp()
json.DisposeJsonObject()
privKey.DisposePrivateKey()
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
resp := chilkat.NewHttpResponse()
success = http.HttpJson("POST","https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/",json,"application/json",resp)
if success == false {
fmt.Println(http.LastErrorText())
http.DisposeHttp()
json.DisposeJsonObject()
privKey.DisposePrivateKey()
resp.DisposeHttpResponse()
return
}
sbResponseBody := chilkat.NewStringBuilder()
resp.GetBodySb(sbResponseBody)
jResp := chilkat.NewJsonObject()
jResp.LoadSb(sbResponseBody)
jResp.SetEmitCompact(false)
// If the status code is not equal to 201, this will display error information.
fmt.Println("Response Body:")
fmt.Println(*jResp.Emit())
respStatusCode := resp.StatusCode()
fmt.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."
// }
fmt.Println("Failed.")
http.DisposeHttp()
json.DisposeJsonObject()
privKey.DisposePrivateKey()
resp.DisposeHttpResponse()
sbResponseBody.DisposeStringBuilder()
jResp.DisposeJsonObject()
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
var nullVal bool
var constraintId *string = new(string)
var description *string = new(string)
var strVal *string = new(string)
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")
for i < count_i {
jResp.SetI(i)
nullVal = jResp.IsNullOf("paymentPreferences[i]")
i = i + 1
}
i = 0
count_i = jResp.SizeOfArray("constraints")
for 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")
for 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")
for 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")
for 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")
for 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")
for i < count_i {
jResp.SetI(i)
strVal = jResp.StringOf("deliverySpecifications.addressRestrictions.restrictions.IN.statesOrRegions[i]")
i = i + 1
}
http.DisposeHttp()
json.DisposeJsonObject()
privKey.DisposePrivateKey()
resp.DisposeHttpResponse()
sbResponseBody.DisposeStringBuilder()
jResp.DisposeJsonObject()