public static function getDefaultShipment()
 {
     parent::setTestApiKey();
     $addressFrom = Shippo_AddressTest::getDefaultAddress();
     $addressTo = Shippo_AddressTest::getDefaultAddress();
     $parcel = Shippo_ParcelTest::getDefaultParcel();
     return Shippo_Shipment::create(array('object_purpose' => 'QUOTE', 'address_from' => $addressFrom->object_id, 'address_to' => $addressTo->object_id, 'parcel' => $parcel->object_id, 'submission_type' => 'PICKUP', 'submission_date' => '2013-12-03T12:00:00.000Z', 'insurance_amount' => '30', 'insurance_currency' => 'USD', 'extra' => '{signature_confirmation: true}', 'customs_declaration' => '', 'reference_1' => '', 'reference_2' => '', 'metadata' => 'Customer ID 123456'));
 }
 public static function getDefaultRate()
 {
     parent::setTestApiKey();
     $shipment = Shippo_ShipmentTest::getDefaultShipment();
     try {
         Shippo_Shipment::get_shipping_rates(array('id' => $shipment->object_id, 'currency' => 'USD'));
     } catch (Exception $e) {
         // Expected Exception, rates not ready, prompting to server to generate
     }
     sleep(5);
     return Shippo_Shipment::get_shipping_rates(array('id' => $shipment->object_id, 'currency' => 'USD'));
 }
$customs_item = array('description' => 'T-Shirt', 'quantity' => '2', 'net_weight' => '1', 'mass_unit' => 'lb', 'value_amount' => '20', 'value_currency' => 'USD', 'origin_country' => 'US');
#Creating the CustomsDeclaration
#(CustomsDeclarations are only required for international shipments)
$customs_declaration = Shippo_CustomsDeclaration::create(array('contents_type' => 'MERCHANDISE', 'contents_explanation' => 'T-Shirt purchase', 'non_delivery_option' => 'RETURN', 'certify' => 'true', 'certify_signer' => 'Laura Behrens Wu', 'items' => array($customs_item)));
//Creating the shipment object. In this example, the objects are directly passed to the
//Shipment.create method, Alternatively, the Address and Parcel objects could be created
//using Address.create(..) and Parcel.create(..) functions respectively.
$shipment = Shippo_Shipment::create(array('object_purpose' => 'PURCHASE', 'address_from' => $fromAddress, 'address_to' => $toAddress, 'parcel' => $parcel, 'submission_type' => 'PICKUP', 'insurance_amount' => '30', 'insurance_currency' => 'USD', 'extra' => '{signature_confirmation: true}', 'customs_declaration' => $customs_declaration["object_id"]));
//Wait for rates to be generated
$attempts = 0;
while (($shipment["object_status"] == "QUEUED" || $shipment["object_status"] == "WAITING") && $attempts < 10) {
    $shipment = Shippo_Shipment::retrieve($shipment["object_id"]);
    $attempts += 1;
}
//Get all rates for shipment.
$rates = Shippo_Shipment::get_shipping_rates(array('id' => $shipment["object_id"]));
//Get the first rate in the rates results.
$rate = $rates["results"][0];
//Purchase the desired rate. sync=True indicates that the function will wait until the
//carrier returns a shipping label before it returns
$transaction = Shippo_Transaction::create(array('rate' => $rate["object_id"]));
//Wait for transaction to be proccessed
$attempts = 0;
while (($transaction["object_status"] == "QUEUED" || $transaction["object_status"] == "WAITING") && $attempts < 10) {
    $transaction = Shippo_Transaction::retrieve($transaction["object_id"]);
    $attempts += 1;
}
//label_url and tracking_number
if ($transaction["object_status"] == "SUCCESS") {
    echo $transaction["label_url"];
    echo "\n";