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PayPal - Refund Captured Payment

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Refunds a captured payment, by ID. Include an amount object in the JSON request body.

Note: This example requires Chilkat v9.5.0.65 or greater.

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Local $bSuccess = False

;  Note: Requires Chilkat v9.5.0.64 or greater.

;  This requires the Chilkat API to have been previously unlocked.
;  See Global Unlock Sample for sample code.

;  Load our previously obtained access token. (see PayPal OAuth2 Access Token)
$oJsonToken = ObjCreate("Chilkat.JsonObject")
$oJsonToken.LoadFile("qa_data/tokens/paypal.json")

;  Build the Authorization request header field value.
$oSbAuth = ObjCreate("Chilkat.StringBuilder")
;  token_type should be "Bearer"
$oSbAuth.Append($oJsonToken.StringOf("token_type"))
$oSbAuth.Append(" ")
$oSbAuth.Append($oJsonToken.StringOf("access_token"))

;  Make the initial connection.
;  A single REST object, once connected, can be used for many PayPal REST API calls.
;  The auto-reconnect indicates that if the already-established HTTPS connection is closed,
;  then it will be automatically re-established as needed.
$oRest = ObjCreate("Chilkat.Rest")
Local $bAutoReconnect = True
$bSuccess = $oRest.Connect("api.sandbox.paypal.com",443,True,$bAutoReconnect)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

;  ----------------------------------------------------------------------------------------------
;  The code above this comment could be placed inside a function/subroutine within the application
;  because the connection does not need to be made for every request.  Once the connection is made
;  the app may send many requests..
;  ----------------------------------------------------------------------------------------------

;  To refund a particular amount, build JSON such as this:
$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.EmitCompact = False
$oJson.UpdateString("amount.total","4.54")
$oJson.UpdateString("amount.currency","USD")
$oJson.UpdateString("description","Athletic socks")
$oJson.UpdateString("reason","Refunding because color was incorrect")
ConsoleWrite($oJson.Emit() & @CRLF)

;  The JSON:

;  	{ 
;  	  "amount": { 
;  	    "total": "4.54",
;  	    "currency": "USD"
;  	  },
;  	  "description": "Athletic socks",
;  	  "reason": "Refunding because color was incorrect"
;  	}
;  
$oRest.AddHeader("Authorization",$oSbAuth.GetAsString())
$oRest.AddHeader("Content-Type","application/json")

;  The capture ID is added to the path.
;  To list your captures: Find Captures. 
$oSbPath = ObjCreate("Chilkat.StringBuilder")
$oSbPath.Append("/v1/payments/capture/capture_id/refund")
Local $iNumReplaced = $oSbPath.Replace("capture_id","1LY5310469661362J")

;  Send the POST request containign the JSON in the request body, and get the JSON response.
$oSbJsonRequest = ObjCreate("Chilkat.StringBuilder")
$oJson.EmitCompact = True
$oJson.EmitSb($oSbJsonRequest)
$oSbJsonResponse = ObjCreate("Chilkat.StringBuilder")

$bSuccess = $oRest.FullRequestSb("POST",$oSbPath.GetAsString(),$oSbJsonRequest,$oSbJsonResponse)
If ($bSuccess <> True) Then
    ConsoleWrite($oRest.LastErrorText & @CRLF)
    Exit
EndIf

$oJson.EmitCompact = False
$oJson.LoadSb($oSbJsonResponse)

ConsoleWrite("Response Status Code = " & $oRest.ResponseStatusCode & @CRLF)

;  Did we get a 201 success response?
If ($oRest.ResponseStatusCode <> 201) Then
    ConsoleWrite($oJson.Emit() & @CRLF)
    ConsoleWrite("Failed." & @CRLF)
    Exit
EndIf

ConsoleWrite($oJson.Emit() & @CRLF)
ConsoleWrite("Success." & @CRLF)

;  A successful JSON response:
;  The "id" is the refund_id.

;  	{ 
;  	  "id": "77B77607RR7243500",
;  	  "create_time": "2016-11-27T01:38:25Z",
;  	  "update_time": "2016-11-27T01:38:25Z",
;  	  "state": "completed",
;  	  "amount": { 
;  	    "total": "4.54",
;  	    "currency": "USD"
;  	  },
;  	  "capture_id": "1LY5310469661362J",
;  	  "parent_payment": "PAY-2CY489250W145633HLA3DK3Y",
;  	  "links": [
;  	    { 
;  	      "href": "https://api.sandbox.paypal.com/v1/payments/refund/77B77607RR7243500",
;  	      "rel": "self",
;  	      "method": "GET"
;  	    },
;  	    { 
;  	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
;  	      "rel": "parent_payment",
;  	      "method": "GET"
;  	    },
;  	    { 
;  	      "href": "https://api.sandbox.paypal.com/v1/payments/capture/1LY5310469661362J",
;  	      "rel": "capture",
;  	      "method": "GET"
;  	    }
;  	  ]
;  	}