(Perl) PayPal - Refund Sale

Refunds a completed payment. Provide the sale_id in the URI and an empty JSON payload for a full refund. For partial refunds, you can include an amount.

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

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# 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)
$jsonToken = chilkat::CkJsonObject->new();
$jsonToken->LoadFile("qa_data/tokens/paypal.json");

# Build the Authorization request header field value.
$sbAuth = chilkat::CkStringBuilder->new();
# token_type should be "Bearer"
$sbAuth->Append($jsonToken->stringOf("token_type"));
$sbAuth->Append(" ");
$sbAuth->Append($jsonToken->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.
$rest = chilkat::CkRest->new();
$bAutoReconnect = 1;
$success = $rest->Connect("api.sandbox.paypal.com",443,1,$bAutoReconnect);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

# ----------------------------------------------------------------------------------------------
# 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:
$jsonPartial = chilkat::CkJsonObject->new();
$jsonPartial->put_EmitCompact(0);
$jsonPartial->UpdateString("amount.total","2.34");
$jsonPartial->UpdateString("amount.currency","USD");
# invoice_number is optional..
$jsonPartial->UpdateString("invoice_number","INV-1234567");
print $jsonPartial->emit() . "\r\n";

# The JSON for a partial refund:

# 	{ 
# 	  "amount": { 
# 	    "total": "2.34",
# 	    "currency": "USD"
# 	  },
# 	  "invoice_number": "INV-1234567"
# 	}

$rest->AddHeader("Authorization",$sbAuth->getAsString());
$rest->AddHeader("Content-Type","application/json");

# The sale ID is added to the path.
# The sale ID is obtained from payment records as shown here: Find Completed Sales
$sbPath = chilkat::CkStringBuilder->new();
$sbPath->Append("/v1/payments/sale/sale_id/refund");
$numReplaced = $sbPath->Replace("sale_id","1XC17935MN507400J");

# Send the POST request containign the JSON in the request body, and get the JSON response.
$sbJsonRequest = chilkat::CkStringBuilder->new();
$jsonPartial->put_EmitCompact(1);
$jsonPartial->EmitSb($sbJsonRequest);
$sbJsonResponse = chilkat::CkStringBuilder->new();

$bFullRefund = 1;
# To send a full refund, send an empty request body:
if ($bFullRefund == 1) {
    $sbJsonRequest->Clear();
    $sbJsonRequest->Append("{}");
}

$success = $rest->FullRequestSb("POST",$sbPath->getAsString(),$sbJsonRequest,$sbJsonResponse);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

$json = chilkat::CkJsonObject->new();
$json->put_EmitCompact(0);
$json->LoadSb($sbJsonResponse);

print "Response Status Code = " . $rest->get_ResponseStatusCode() . "\r\n";

# Did we get a 201 success response?
if ($rest->get_ResponseStatusCode() != 201) {
    print $json->emit() . "\r\n";
    print "Failed." . "\r\n";
    exit;
}

print $json->emit() . "\r\n";
print "Success." . "\r\n";

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

# 	{ 
# 	  "id": "7NE550583A133505U",
# 	  "create_time": "2016-11-26T16:38:27Z",
# 	  "update_time": "2016-11-26T16:38:27Z",
# 	  "state": "completed",
# 	  "amount": { 
# 	    "total": "289.00",
# 	    "currency": "USD"
# 	  },
# 	  "sale_id": "1XC17935MN507400J",
# 	  "parent_payment": "PAY-2AA764602T410180HLA4FX6Q",
# 	  "links": [
# 	    { 
# 	      "href": "https://api.sandbox.paypal.com/v1/payments/refund/7NE550583A133505U",
# 	      "rel": "self",
# 	      "method": "GET"
# 	    },
# 	    { 
# 	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2AA764602T410180HLA4FX6Q",
# 	      "rel": "parent_payment",
# 	      "method": "GET"
# 	    },
# 	    { 
# 	      "href": "https://api.sandbox.paypal.com/v1/payments/sale/1XC17935MN507400J",
# 	      "rel": "sale",
# 	      "method": "GET"
# 	    }
# 	  ]
# 	}