VB.NET
VB.NET
Amazon Pay - Complete Checkout Session
See more Amazon Pay Examples
Complete Checkout Session after the buyer returns to checkoutResultReturnUrl to finalize the paymentIntent.Chilkat VB.NET Downloads
Dim success As Boolean = False
' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.
Dim http As New 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"
' }
' }
Dim json As New Chilkat.JsonObject
json.UpdateString("chargeAmount.amount","14.00")
json.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.
Dim privKey As New Chilkat.PrivateKey
success = privKey.LoadPemFile("C:/someDir/myAmazonPayPrivateKey.pem")
If (success = False) Then
Debug.WriteLine(privKey.LastErrorText)
Exit Sub
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
Dim publicKeyId As String = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW"
success = http.SetAuthPrivateKey(publicKeyId,privKey)
If (success = False) Then
Debug.WriteLine(http.LastErrorText)
Exit Sub
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
success = http.SetUrlVar("sessionId","62b7d028-6c7c-4a43-b077-3897dff27c5b")
Dim resp As New Chilkat.HttpResponse
success = http.HttpJson("POST","https://pay-api.amazon.eu/sandbox/v2/checkoutSessions/{$sessionId}/complete",json,"application/json",resp)
If (success = False) Then
Debug.WriteLine(http.LastErrorText)
Exit Sub
End If
Dim sbResponseBody As New Chilkat.StringBuilder
resp.GetBodySb(sbResponseBody)
Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False
' If the status code is not equal to 200, this will display error information.
Debug.WriteLine("Response Body:")
Debug.WriteLine(jResp.Emit())
Dim respStatusCode As Integer = resp.StatusCode
Debug.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode <> 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"
' }
Debug.WriteLine("Failed.")
Exit Sub
End If
' 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
Dim nullVal As Boolean
Dim checkoutSessionId As String = jResp.StringOf("checkoutSessionId")
Dim webCheckoutDetails As String = jResp.StringOf("webCheckoutDetails")
Dim chargePermissionType As String = jResp.StringOf("chargePermissionType")
Dim recurringMetadata As String = jResp.StringOf("recurringMetadata")
Dim productType As String = jResp.StringOf("productType")
Dim paymentDetails As String = jResp.StringOf("paymentDetails")
Dim merchantMetadata As String = jResp.StringOf("merchantMetadata")
Dim supplementaryData As String = jResp.StringOf("supplementaryData")
Dim buyer As String = jResp.StringOf("buyer")
Dim billingAddress As String = jResp.StringOf("billingAddress")
Dim statusDetailsState As String = jResp.StringOf("statusDetails.state")
Dim statusDetailsReasonCode As String = jResp.StringOf("statusDetails.reasonCode")
Dim statusDetailsReasonDescription As String = jResp.StringOf("statusDetails.reasonDescription")
Dim statusDetailsLastUpdatedTimestamp As String = jResp.StringOf("statusDetails.lastUpdatedTimestamp")
Dim shippingAddress As String = jResp.StringOf("shippingAddress")
Dim platformId As String = jResp.StringOf("platformId")
Dim chargePermissionId As String = jResp.StringOf("chargePermissionId")
Dim chargeId As String = jResp.StringOf("chargeId")
Dim creationTimestamp As String = jResp.StringOf("creationTimestamp")
Dim expirationTimestamp As String = jResp.StringOf("expirationTimestamp")
Dim storeId As String = jResp.StringOf("storeId")
Dim deliverySpecifications As String = jResp.StringOf("deliverySpecifications")
Dim providerMetadata As String = jResp.StringOf("providerMetadata")
Dim releaseEnvironment As String = jResp.StringOf("releaseEnvironment")
Dim i As Integer = 0
Dim count_i As Integer = jResp.SizeOfArray("paymentPreferences")
While i < count_i
jResp.I = i
nullVal = jResp.IsNullOf("paymentPreferences[i]")
i = i + 1
End While
i = 0
count_i = jResp.SizeOfArray("constraints")
While i < count_i
jResp.I = i
nullVal = jResp.IsNullOf("constraints[i]")
i = i + 1
End While