(VB.NET UWP/WinRT) Amazon Pay - Get Refund

See more Amazon Pay Examples

Get refund details.

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/refund.html#get-refund

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

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

Dim http As New Chilkat.Http
Dim success As Boolean

' Implements the following CURL command:

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

' 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
' Authorization

http.Accept = "application/json"

Dim respStatusCode As Integer = 0

Dim sbResponseBody As New Chilkat.StringBuilder
success = http.SetUrlVar("refundId","S01-5105180-3221187-R022311")
' 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 = Await http.QuickGetSbAsync("https://pay-api.amazon.eu/sandbox/v2/refunds/{$refundId}",sbResponseBody)
If (success = False) 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.WriteLine("Response Status Code = " & respStatusCode)
        Debug.WriteLine("Response body:")
        Debug.WriteLine(http.LastResponseBody)
    Else
        Debug.WriteLine(http.LastErrorText)
    End If

    Exit Sub
End If


Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = False

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

respStatusCode = http.LastStatus
Debug.WriteLine("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.WriteLine("Failed.")
    Exit Sub
End If


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

' {
'      "refundId": "S01-5105180-3221187-R022311",
'      "chargeId": "S01-5105180-3221187-C056351",
'      "refundAmount": {
'          "amount": "14.00",
'          "currencyCode": "USD"
'      },
'      "softDescriptor": "Descriptor",
'      "creationTimestamp": "20190714T155300Z",
'      "statusDetails": {
'          "state": "Refunded",
'          "reasonCode": null,
'          "reasonDescription": null,
'          "lastUpdatedTimestamp": "20190714T155300Z"
'      },
'      "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



Dim refundId As String = jResp.StringOf("refundId")
Dim chargeId As String = jResp.StringOf("chargeId")
Dim refundAmountAmount As String = jResp.StringOf("refundAmount.amount")
Dim refundAmountCurrencyCode As String = jResp.StringOf("refundAmount.currencyCode")
Dim softDescriptor As String = jResp.StringOf("softDescriptor")
Dim creationTimestamp As String = jResp.StringOf("creationTimestamp")
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 releaseEnvironment As String = jResp.StringOf("releaseEnvironment")