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PayPal - Capture a Previously Authorized Payment

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Captures a previously authorized payment.

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

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Local $bSuccess = False

;  Note: Requires Chilkat v9.5.0.65 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..
;  ----------------------------------------------------------------------------------------------

;  Build the JSON containing the transaction information.
$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.EmitCompact = False
$oJson.UpdateString("amount.currency","USD")
$oJson.UpdateString("amount.total","4.54")
$oJson.UpdateBool("is_final_capture",True)
ConsoleWrite($oJson.Emit() & @CRLF)

;  The JSON created by the above code:

;  	{ 
;  	  "amount": { 
;  	    "currency": "USD",
;  	    "total": "4.54"
;  	  },
;  	  "is_final_capture": true
;  	}

$oRest.AddHeader("Authorization",$oSbAuth.GetAsString())
$oRest.AddHeader("Content-Type","application/json")

;  To capture payment, make a call to /v1/payments/authorization/[authorization_id]/capture with the authorization ID in the URI.
;  See PayPal Authorize Payment for sample code to create the authorization.
;  The "7X8332687A4929542" comes from the "transactions[0].related_resources[0].authorization.id" part of the authorization response.

$oSbPath = ObjCreate("Chilkat.StringBuilder")
$oSbPath.Append("/v1/payments/authorization/[authorization_id]/capture")
Local $iNumReplacements = $oSbPath.Replace("[authorization_id]","7X8332687A4929542")

;  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)

;  IMPORTANT: In most PayPal examples, the return status code is 201.
;  For this particular call, PayPal returns status code 200.

;  Did we get a 200 success response?
If ($oRest.ResponseStatusCode <> 200) Then
    ConsoleWrite($oJson.Emit() & @CRLF)
    ConsoleWrite("Failed." & @CRLF)
    Exit
EndIf

;  Sample JSON response is shown below.
ConsoleWrite($oJson.Emit() & @CRLF)

ConsoleWrite("success" & @CRLF)

;  ------------------------------------------------
;  A sample JSON response:

;  	{ 
;  	  "id": "1LY5310469661362J",
;  	  "create_time": "2016-11-24T00:40:50Z",
;  	  "update_time": "2016-11-24T00:40:54Z",
;  	  "amount": { 
;  	    "total": "4.54",
;  	    "currency": "USD"
;  	  },
;  	  "is_final_capture": true,
;  	  "state": "completed",
;  	  "reasonCode": "None",
;  	  "parent_payment": "PAY-2CY489250W145633HLA3DK3Y",
;  	  "transaction_fee": { 
;  	    "value": "0.43",
;  	    "currency": "USD"
;  	  },
;  	  "links": [
;  	    { 
;  	      "href": "https://api.sandbox.paypal.com/v1/payments/capture/1LY5310469661362J",
;  	      "rel": "self",
;  	      "method": "GET"
;  	    },
;  	    { 
;  	      "href": "https://api.sandbox.paypal.com/v1/payments/capture/1LY5310469661362J/refund",
;  	      "rel": "refund",
;  	      "method": "POST"
;  	    },
;  	    { 
;  	      "href": "https://api.sandbox.paypal.com/v1/payments/authorization/7X8332687A4929542",
;  	      "rel": "authorization",
;  	      "method": "GET"
;  	    },
;  	    { 
;  	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
;  	      "rel": "parent_payment",
;  	      "method": "GET"
;  	    }
;  	  ]
;  	}