(Perl) PayPal - Authorize a Payment

Creates an authorization for a payment. This is for the case where the payment will first be authorized, and then captured at a later date. (In other words, the buyer is providing his/her credit card information now, and the actual charge (capture) will take place at a later time.)

Creating the authorization is the same as creating "sale" payment, except the intent is set to "authorize" instead of "sale".

This example requests an authorization for a credit card payment (using a credit card ID previoulsy stored in the PayPal vault).

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 v9.5.0.65 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)
$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..
# ----------------------------------------------------------------------------------------------

# Build the JSON containing the transaction information.
$json = chilkat::CkJsonObject->new();
$json->put_EmitCompact(0);
$json->UpdateString("intent","authorize");
$json->UpdateString("payer.payment_method","credit_card");
$json->UpdateString("payer.funding_instruments[0].credit_card_token.credit_card_id","CARD-52W84623JH8043102LA3CLGA");
$json->UpdateString("payer.funding_instruments[0].credit_card_token.payer_id","user12345");
$json->UpdateString("transactions[0].amount.total","6.70");
$json->UpdateString("transactions[0].amount.currency","USD");
$json->UpdateString("transactions[0].description","This is the payment transaction description.");

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

# The JSON created by the above code is this:

# 	{ 
# 	  "intent": "authorize",
# 	  "payer": { 
# 	    "payment_method": "credit_card",
# 	    "funding_instruments": [
# 	      { 
# 	        "credit_card_token": { 
# 	          "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
# 	          "payer_id": "user12345"
# 	        }
# 	      }
# 	    ]
# 	  },
# 	  "transactions": [
# 	    { 
# 	      "amount": { 
# 	        "total": "6.70",
# 	        "currency": "USD"
# 	      },
# 	      "description": "This is the payment transaction description."
# 	    }
# 	  ]
# 	}

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

# Send the POST request containign the JSON in the request body, and get the JSON response.
$sbJsonRequest = chilkat::CkStringBuilder->new();
$json->put_EmitCompact(1);
$json->EmitSb($sbJsonRequest);
$sbJsonResponse = chilkat::CkStringBuilder->new();
$success = $rest->FullRequestSb("POST","/v1/payments/payment",$sbJsonRequest,$sbJsonResponse);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

$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;
}

# Sample JSON response is shown below.
print $json->emit() . "\r\n";
# The authorization ID found in the related_resources is used to capture the payment at a later time.
print "authorization id: " . $json->stringOf("transactions[0].related_resources[0].authorization.id") . "\r\n";
print "success" . "\r\n";

# ------------------------------------------------
# A sample JSON response:

# 	{ 
# 	  "id": "PAY-2CY489250W145633HLA3DK3Y",
# 	  "create_time": "2016-11-24T00:33:51Z",
# 	  "update_time": "2016-11-24T00:33:58Z",
# 	  "state": "approved",
# 	  "intent": "authorize",
# 	  "payer": { 
# 	    "payment_method": "credit_card",
# 	    "funding_instruments": [
# 	      { 
# 	        "credit_card_token": { 
# 	          "credit_card_id": "CARD-52W84623JH8043102LA3CLGA",
# 	          "payer_id": "user12345",
# 	          "last4": "9974",
# 	          "type": "visa",
# 	          "expire_month": "9",
# 	          "expire_year": "2021"
# 	        }
# 	      }
# 	    ]
# 	  },
# 	  "transactions": [
# 	    { 
# 	      "amount": { 
# 	        "total": "6.70",
# 	        "currency": "USD",
# 	        "details": { 
# 	          "subtotal": "6.70"
# 	        }
# 	      },
# 	      "description": "This is the payment transaction description.",
# 	      "related_resources": [
# 	        { 
# 	          "authorization": { 
# 	            "id": "7X8332687A4929542",
# 	            "create_time": "2016-11-24T00:33:51Z",
# 	            "update_time": "2016-11-24T00:33:58Z",
# 	            "amount": { 
# 	              "total": "6.70",
# 	              "currency": "USD",
# 	              "details": { 
# 	                "subtotal": "6.70"
# 	              }
# 	            },
# 	            "state": "authorized",
# 	            "parent_payment": "PAY-2CY489250W145633HLA3DK3Y",
# 	            "valid_until": "2016-12-23T00:33:51Z",
# 	            "links": [
# 	              { 
# 	                "href": "https://api.sandbox.paypal.com/v1/payments/authorization/7X8332687A4929542",
# 	                "rel": "self",
# 	                "method": "GET"
# 	              },
# 	              { 
# 	                "href": "https://api.sandbox.paypal.com/v1/payments/authorization/7X8332687A4929542/capture",
# 	                "rel": "capture",
# 	                "method": "POST"
# 	              },
# 	              { 
# 	                "href": "https://api.sandbox.paypal.com/v1/payments/authorization/7X8332687A4929542/void",
# 	                "rel": "void",
# 	                "method": "POST"
# 	              },
# 	              { 
# 	                "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
# 	                "rel": "parent_payment",
# 	                "method": "GET"
# 	              }
# 	            ],
# 	            "processor_response": { 
# 	              "avs_code": "X",
# 	              "cvv_code": "M"
# 	            },
# 	            "fmf_details": {}
# 	          }
# 	        }
# 	      ]
# 	    }
# 	  ],
# 	  "links": [
# 	    { 
# 	      "href": "https://api.sandbox.paypal.com/v1/payments/payment/PAY-2CY489250W145633HLA3DK3Y",
# 	      "rel": "self",
# 	      "method": "GET"
# 	    }
# 	  ]
# 	}