(Perl) PayPal - Find Authorizations

Finds previously created authorizations.

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

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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..
# ----------------------------------------------------------------------------------------------

# Clear the REST object of any headers or query params from previous requests.
$rest->ClearAllHeaders();
$rest->ClearAllQueryParams();

$rest->AddHeader("Authorization",$sbAuth->getAsString());

# To find authoriaztions, we list payments and look for those
# containing "authorization" transactions
$rest->AddQueryParam("count","100");
$rest->AddQueryParam("start_index","0");
$rest->AddQueryParam("sort_by","update_time");
$rest->AddQueryParam("sort_order","asc");

# Send the GET request and get the JSON response.
$sbJsonResponse = chilkat::CkStringBuilder->new();
$success = $rest->FullRequestNoBodySb("GET","/v1/payments/payment",$sbJsonResponse);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

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

# (optional) Save the entire JSON response to a file to examine if desired..
$sbTemp = chilkat::CkStringBuilder->new();
$json->EmitSb($sbTemp);
$sbTemp->WriteFile("qa_output/paypal_payments.json","utf-8",0);

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

# Did we get a 200 success response?
if ($rest->get_ResponseStatusCode() != 200) {
    print $json->emit() . "\r\n";
    print "Failed." . "\r\n";
    exit;
}

# We are looking for "authorization" transactions .
# As shown below, we are looking in the "transactions" for "related_resources"
# containing "authorization" JSON objects. 

# 	{ 
# 	  "payments": [
# 	    { 
# 	      "id": "PAY-3SL8976592063093RLA3DMAY",
# 	      "create_time": "2016-11-24T00:36:19Z",
# 	      "update_time": "2016-11-24T00:36:24Z",
# 	      "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": "6HG91590AX913463C",
# 	                "create_time": "2016-11-24T00:36:19Z",
# 	                "update_time": "2016-11-24T00:36:24Z",
# 	                "amount": { 
# 	                  ...
# 	                  }
# 	                },
# 	                "state": "authorized",
# 	                "parent_payment": "PAY-3SL8976592063093RLA3DMAY",
# 	                "valid_until": "2016-12-23T00:36:19Z",
# 			...
# 

# Iterate over the payments and show each authorization
$numPayments = $json->SizeOfArray("payments");
$i = 0;
while ($i < $numPayments) {
    $json->put_I($i);
    $j = 0;
    $numTransactions = $json->SizeOfArray("payments[i].transactions");
    while ($j < $numTransactions) {
        $json->put_J($j);
        $numRelatedResources = $json->SizeOfArray("payments[i].transactions[j].related_resources");
        $k = 0;
        while ($k < $numRelatedResources) {
            $json->put_K($k);
            if ($json->HasMember("payments[i].transactions[j].related_resources[k].authorization") == 1) {
                # jsonAuth is a JsonObject
                $jsonAuth = $json->ObjectOf("payments[i].transactions[j].related_resources[k].authorization");
                print "authorization id: " . $jsonAuth->stringOf("id") . "\r\n";
                print "state: " . $jsonAuth->stringOf("state") . "\r\n";
                print "total: " . $jsonAuth->stringOf("amount.total") . "\r\n";
                print "----" . "\r\n";

            }

            $k = $k + 1;
        }

        $j = $j + 1;
    }

    $i = $i + 1;
}

print "success" . "\r\n";