Classic ASP
Amazon Pay - Create Refund

Initiate a full or partial refund for a charge.
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/refunds/" \
' -X POST
' -H "authorization:Px2e5oHhQZ88vVhc0DO%2FsShHj8MDDg%3DEXAMPLESIGNATURE"
' -H "x-amz-pay-date:20201012T235046Z"
' -H "x-amz-pay-idempotency-key:AVLo5tI10BHgEk2jEXAMPLEKEY"
' -d '{
'     "chargeId": "CHARGE_ID",
'     "refundAmount": {
'         "amount": "14.00",
'         "currencyCode": "USD"
'     },
'     "softDescriptor": "Descriptor"
' }'

' 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.

' {
'     "chargeId": "CHARGE_ID",
'     "refundAmount": {
'         "amount": "14.00",
'         "currencyCode": "USD"
'     },
'     "softDescriptor": "Descriptor"
' }

set json = Server.CreateObject("Chilkat.JsonObject")
success = json.UpdateString("chargeId","CHARGE_ID")
success = json.UpdateString("refundAmount.amount","14.00")
success = json.UpdateString("refundAmount.currencyCode","USD")
success = json.UpdateString("softDescriptor","Descriptor")

' 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/refunds/",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
    Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>"
    Response.End
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": "RefundInitiated",
'          "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

refundId = jResp.StringOf("refundId")
chargeId = jResp.StringOf("chargeId")
refundAmountAmount = jResp.StringOf("refundAmount.amount")
refundAmountCurrencyCode = jResp.StringOf("refundAmount.currencyCode")
softDescriptor = jResp.StringOf("softDescriptor")
creationTimestamp = jResp.StringOf("creationTimestamp")
statusDetailsState = jResp.StringOf("statusDetails.state")
statusDetailsReasonCode = jResp.StringOf("statusDetails.reasonCode")
statusDetailsReasonDescription = jResp.StringOf("statusDetails.reasonDescription")
statusDetailsLastUpdatedTimestamp = jResp.StringOf("statusDetails.lastUpdatedTimestamp")
releaseEnvironment = jResp.StringOf("releaseEnvironment")

%>
</body>
</html>