(Visual Basic 6.0) Amazon Pay - Get Charge Permission

See more Amazon Pay Examples

Get Charge Permission to determine if this Charge Permission can be used to charge the buyer.

Note: This example requires Chilkat v9.5.0.89 or later. Contact support@chilkatsoft.com to get a v9.5.0.89 pre-release for testing.

For more information, see https://developer.amazon.com/docs/amazon-pay-api-v2/charge-permission.html#get-charge-permission

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

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

Dim http As New ChilkatHttp
Dim success As Long

' Implements the following CURL command:

' curl "https://pay-api.amazon.com/:version/chargePermissions/:chargePermissionId"
' 	-X GET
' 	-H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
' 	-H "x-amz-pay-date:20201012T235046Z"

' Use the following online tool to generate HTTP code from a CURL command
' Convert a cURL Command to HTTP Source Code

' 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 PrivateKey
success = privKey.LoadPemFile("C:/someDir/myAmazonPayPrivateKey.pem")
If (success = 0) Then
    Debug.Print 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
publicKeyId = "SANDBOX-AHEGSJCM3L2S637RBGABLAFW"
success = http.SetAuthPrivateKey(publicKeyId,privKey)
If (success = 0) Then
    Debug.Print 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
' Authorization

http.Accept = "application/json"

Dim respStatusCode As Long
respStatusCode = 0

Dim sbResponseBody As New ChilkatStringBuilder
success = http.SetUrlVar("chargePermissionId","P21-1111111-1111111")
' To use the live system, replace "sandbox" with "live" in the URL passed to QuickGetSb.
' Also, make sure to use the correct region: pay-api.amazon.com, pay-api.amazon.eu, or pay-api.amazon.jp
success = http.QuickGetSb("https://pay-api.amazon.eu/sandbox/v2/chargePermissions/{$chargePermissionId}",sbResponseBody)
If (success = 0) Then
    ' If the LastStatus is not equal to 0, then we received a response, but it was an error response.
    respStatusCode = http.LastStatus
    If (respStatusCode <> 0) Then
        Debug.Print "Response Status Code = " & respStatusCode
        Debug.Print "Response body:"
        Debug.Print http.LastResponseBody
    Else
        Debug.Print http.LastErrorText
    End If

    Exit Sub
End If

Dim jResp As New ChilkatJsonObject
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = 0

Debug.Print "Response Body:"
Debug.Print jResp.Emit()

respStatusCode = http.LastStatus
Debug.Print "Response Status Code = " & respStatusCode
' We expect a 200 status code for success.
' Note: Some Amazon Pay API calls return 200 for success, others return 201.
If (respStatusCode <> 200) Then
    Debug.Print "Failed."
    Exit Sub
End If

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

' {
'     "chargePermissionId": "chargePermission-1",
'     "chargePermissionReferenceId": null,
'     "buyer": {
'         "buyerId": "buyerId",
'         "name": "name-1",
'         "email": "name@amazon.com",
'         "phoneNumber": "800-000-0000",
'         "primeMembershipTypes": null
'     },
'     "releaseEnvironment": "Live",
'     "shippingAddress":{  // Null for PayOnly product type
'         "name": "Work",
'         "addressLine1": "440 Terry Ave",
'         "addressLine2": "",
'         "addressLine3": "",
'         "city": "Seattle",
'         "county": "King",
'         "district": "Seattle",
'         "stateOrRegion": "WA",
'         "postalCode": "98121",
'         "countryCode": "US",
'         "phoneNumber": "800-000-0000"
'     },
'     "billingAddress":{  // Only available in EU or for PayOnly product type
'         "name": "Work",
'         "addressLine1": "440 Terry Ave",
'         "addressLine2": "",
'         "addressLine3": "",
'         "city": "Seattle",
'         "county": "King",
'         "district": "Seattle",
'         "stateOrRegion": "WA",
'         "postalCode": "98121",
'         "countryCode": "US",
'         "phoneNumber": "800-000-0000"
'     },
'     "paymentPreferences":[{
'         "paymentDescriptor": null
'     }],
'     "statusDetails":{
'         "state": "Chargeable",
'         "reasons":null,
'         "lastUpdatedTimestamp": "20190714T155300Z"
'     },
'     "creationTimestamp": "20190714T155300Z",
'     "expirationTimestamp": "20190715T155300Z",
'     "merchantMetadata":{
'         "merchantReferenceId": "123-77-876", 
'         "merchantStoreName": "AmazonTestStoreFront",
'         "noteToBuyer": "merchantNoteForBuyer",
'         "customInformation": "This is custom information"
'     },
'     "platformId": "SPId",
'     "limits": {
'         "amountLimit": {
'             "amount": "14.00",
'             "currencyCode": "USD"
'         },
'         "amountBalance": {
'             "amount": "14.00",
'             "currencyCode": "USD"
'         }
'     },
'     "presentmentCurrency": "USD"
' }

' 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 paymentDescriptor As String

Dim chargePermissionId As String
chargePermissionId = jResp.StringOf("chargePermissionId")
Dim chargePermissionReferenceId As String
chargePermissionReferenceId = jResp.StringOf("chargePermissionReferenceId")
Dim buyerBuyerId As String
buyerBuyerId = jResp.StringOf("buyer.buyerId")
Dim buyerName As String
buyerName = jResp.StringOf("buyer.name")
Dim buyerEmail As String
buyerEmail = jResp.StringOf("buyer.email")
Dim buyerPhoneNumber As String
buyerPhoneNumber = jResp.StringOf("buyer.phoneNumber")
Dim buyerPrimeMembershipTypes As String
buyerPrimeMembershipTypes = jResp.StringOf("buyer.primeMembershipTypes")
Dim releaseEnvironment As String
releaseEnvironment = jResp.StringOf("releaseEnvironment")
Dim shippingAddressName As String
shippingAddressName = jResp.StringOf("shippingAddress.name")
Dim shippingAddressAddressLine1 As String
shippingAddressAddressLine1 = jResp.StringOf("shippingAddress.addressLine1")
Dim shippingAddressAddressLine2 As String
shippingAddressAddressLine2 = jResp.StringOf("shippingAddress.addressLine2")
Dim shippingAddressAddressLine3 As String
shippingAddressAddressLine3 = jResp.StringOf("shippingAddress.addressLine3")
Dim shippingAddressCity As String
shippingAddressCity = jResp.StringOf("shippingAddress.city")
Dim shippingAddressCounty As String
shippingAddressCounty = jResp.StringOf("shippingAddress.county")
Dim shippingAddressDistrict As String
shippingAddressDistrict = jResp.StringOf("shippingAddress.district")
Dim shippingAddressStateOrRegion As String
shippingAddressStateOrRegion = jResp.StringOf("shippingAddress.stateOrRegion")
Dim shippingAddressPostalCode As String
shippingAddressPostalCode = jResp.StringOf("shippingAddress.postalCode")
Dim shippingAddressCountryCode As String
shippingAddressCountryCode = jResp.StringOf("shippingAddress.countryCode")
Dim shippingAddressPhoneNumber As String
shippingAddressPhoneNumber = jResp.StringOf("shippingAddress.phoneNumber")
Dim billingAddressName As String
billingAddressName = jResp.StringOf("billingAddress.name")
Dim billingAddressAddressLine1 As String
billingAddressAddressLine1 = jResp.StringOf("billingAddress.addressLine1")
Dim billingAddressAddressLine2 As String
billingAddressAddressLine2 = jResp.StringOf("billingAddress.addressLine2")
Dim billingAddressAddressLine3 As String
billingAddressAddressLine3 = jResp.StringOf("billingAddress.addressLine3")
Dim billingAddressCity As String
billingAddressCity = jResp.StringOf("billingAddress.city")
Dim billingAddressCounty As String
billingAddressCounty = jResp.StringOf("billingAddress.county")
Dim billingAddressDistrict As String
billingAddressDistrict = jResp.StringOf("billingAddress.district")
Dim billingAddressStateOrRegion As String
billingAddressStateOrRegion = jResp.StringOf("billingAddress.stateOrRegion")
Dim billingAddressPostalCode As String
billingAddressPostalCode = jResp.StringOf("billingAddress.postalCode")
Dim billingAddressCountryCode As String
billingAddressCountryCode = jResp.StringOf("billingAddress.countryCode")
Dim billingAddressPhoneNumber As String
billingAddressPhoneNumber = jResp.StringOf("billingAddress.phoneNumber")
Dim statusDetailsState As String
statusDetailsState = jResp.StringOf("statusDetails.state")
Dim statusDetailsReasons As String
statusDetailsReasons = jResp.StringOf("statusDetails.reasons")
Dim statusDetailsLastUpdatedTimestamp As String
statusDetailsLastUpdatedTimestamp = jResp.StringOf("statusDetails.lastUpdatedTimestamp")
Dim creationTimestamp As String
creationTimestamp = jResp.StringOf("creationTimestamp")
Dim expirationTimestamp As String
expirationTimestamp = jResp.StringOf("expirationTimestamp")
Dim merchantMetadataMerchantReferenceId As String
merchantMetadataMerchantReferenceId = jResp.StringOf("merchantMetadata.merchantReferenceId")
Dim merchantMetadataMerchantStoreName As String
merchantMetadataMerchantStoreName = jResp.StringOf("merchantMetadata.merchantStoreName")
Dim merchantMetadataNoteToBuyer As String
merchantMetadataNoteToBuyer = jResp.StringOf("merchantMetadata.noteToBuyer")
Dim merchantMetadataCustomInformation As String
merchantMetadataCustomInformation = jResp.StringOf("merchantMetadata.customInformation")
Dim platformId As String
platformId = jResp.StringOf("platformId")
Dim limitsAmountLimitAmount As String
limitsAmountLimitAmount = jResp.StringOf("limits.amountLimit.amount")
Dim limitsAmountLimitCurrencyCode As String
limitsAmountLimitCurrencyCode = jResp.StringOf("limits.amountLimit.currencyCode")
Dim limitsAmountBalanceAmount As String
limitsAmountBalanceAmount = jResp.StringOf("limits.amountBalance.amount")
Dim limitsAmountBalanceCurrencyCode As String
limitsAmountBalanceCurrencyCode = jResp.StringOf("limits.amountBalance.currencyCode")
Dim presentmentCurrency As String
presentmentCurrency = jResp.StringOf("presentmentCurrency")
Dim i As Long
i = 0
Dim count_i As Long
count_i = jResp.SizeOfArray("paymentPreferences")
Do While i < count_i
    jResp.I = i
    paymentDescriptor = jResp.StringOf("paymentPreferences[i].paymentDescriptor")
    i = i + 1
Loop