no data returned posting to API

Posted on 2014-02-13
Last Modified: 2015-07-09
I have a Wordpress plugin that posts to a custom shipping API in Australia.

Now recently the API has been updated to .Net MVC and the plugin code no longer works, even though I have updated the URL used etc. Could the params be the issue due to the fact that they're using MVC and the actual url structure has changed?

Website: - just add a product and view the basket

Here's a working URL on the API:

I would love it if someone could tell me what is wrong as I am not a PHP developer.

  Plugin Name: FastWay Courier Shipping Rates for WooCommerce
  Plugin URI:
  Description: FastWay Courier Shipping Rates based on Weight for WooCommerce
  Version: 1.0
  Author: PatSaTECH
  Author URI:
  Copyright: © 2008-2012 PatSaTECH.
  License: GNU General Public License v3.0
  License URI:

add_action('plugins_loaded', 'woocommerce_cust_init', 0);

function woocommerce_cust_init() {

    if (!class_exists('WC_Shipping_Method'))

function Unset_AUStates( $states ) {     
	//$states["AU"] = array();
	return $states; 
add_filter( 'woocommerce_states', 'Unset_AUStates', 10, 1 );		

function Unset_AULocale( $states ) {     
	$states["AU"] = array(
					'state'		=> array(
						'label' 		=> __('Suburb', 'woocommerce'),
						'placeholder' 	=> __('Suburb', 'woocommerce'),
						'required' 		=> true
	return $states; 
add_filter( 'woocommerce_get_country_locale', 'Unset_AULocale', 10, 1 );	
// Our hooked in function - $fields is passed via the filter!
function Override_State_Fields( $fields ) {
     $fields['billing']['billing_suburb'] = array(
        'label'     => __('State', 'woocommerce'),
    'placeholder'   => _x('State', 'placeholder', 'woocommerce'),
    'required'  => true,
    'class'     => array('form-row-wide'),
    'clear'     => true
     $fields['shipping']['shipping_suburb'] = array(
        'label'     => __('Suburb', 'woocommerce'),
    'placeholder'   => _x('Suburb', 'placeholder', 'woocommerce'),
    'required'  => true,
    'class'     => array('form-row-wide'),
    'clear'     => true
     $fields['billing']['billing_state']['label'] = 'Suburb';
     $fields['billing']['billing_state']['placeholder'] = 'Suburb';
     $fields['shipping']['shipping_state']['label'] = 'Suburb';
     $fields['shipping']['shipping_state']['placeholder'] = 'Suburb';
     return $fields;

add_filter( 'woocommerce_checkout_fields' , 'Override_State_Fields' );

add_action('woocommerce_checkout_update_order_meta', 'Update_State_Fields');
function Update_State_Fields( $order_id ) {
    if ($_POST['shipping_suburb']) update_post_meta( $order_id, '_shipping_state', esc_attr($_POST['shipping_suburb']));
    if ($_POST['billing_suburb']) update_post_meta( $order_id, '_billing_state', esc_attr($_POST['billing_suburb']));

class WC_FastWay_Courier extends WC_Shipping_Method {
	function __construct() { 
		$this->id = 'FastWay_Courier';
		$this->method_title = __('FastWay Courier', 'woocommerce');
    function init() {
		// Load the form fields.
		// Load the settings.
		// Define user set variables
		$this->enabled		= empty( $this->settings['enabled'] ) ? 'no' : $this->settings['enabled'];
		$this->title		= empty( $this->settings['title'] ) ? '' : $this->settings['title'];
		$this->api_key		= empty( $this->settings['api_key'] ) ? '' : $this->settings['api_key'];
		$this->free_postcode= empty( $this->settings['free_postcode'] ) ? '' : $this->settings['free_postcode'];
		$this->availability	= empty( $this->settings['availability'] ) ? '' : $this->settings['availability'];
		$this->countries	= empty( $this->settings['countries'] ) ? '' : $this->settings['countries'];	
		add_action('woocommerce_update_options_shipping_'.$this->id, array(&$this, 'process_admin_options'));
	function calculate_shipping( $data = false ) {
		global $woocommerce;
		$shipping_total = 0;
		$api_key = $this->api_key;
		$free_postcode = $this->free_postcode;
			$free_postcode = '0000';
		$free_postcode = explode(',',$free_postcode);

		//$woocommerce->add_error( "Sorry, we don't ship to PO BOX addresses." );
        $customer = $woocommerce->customer;
		$weight = $woocommerce->cart->cart_contents_weight;
		$state = $customer->get_shipping_state();
		$code = $customer->get_shipping_postcode();
		//$rates = "$state/$code/$weight?&api_key=$api_key";
		$params = array(
					  	"RFCode" => "CNS",
					  	"Suburb" => $state,
					  	"DestPostcode " => $code,
						"WeightInKg " => $weight,
						"api_key" => $api_key
		$rate = $this->getrates($params);
		$shipping_total = $this->api_key;
		if(in_array($code, $free_postcode)){
			$freerate = array(
	    		'id' 	=> 'free_shipping',
	    		'label' => 'Free Shipping',
	    		'cost' 	=> 0,
	    		'taxes' => false
	    	$this->add_rate( $freerate );
				$totweight = $rate["result"]['parcel_weight_kg'];
				foreach($rate['result']['services'] as $id => $value){		
				$rates = "";
				if($value['type'] == 'Satchel' && $totweight <= '2'){			
						$rates = array(
							'id' 		=> $value['type'],
							'label' 	=> $value['type'], 
							'cost' 		=> $value['labelprice_normal']
				}else if($value['type'] == 'Parcel' && $totweight > '2'){			
						$rates = array(
							'id' 		=> $value['type'],
							'label' 	=> $value['type'], 
							'cost' 		=> $value['labelprice_normal']
					/*if($value['FranchiseName'] == 'Wollongong'){
						echo $value['FranchiseCode'];
				//$woocommerce->add_error('Please enter the Suburb in State feild to Calculate the Shipping Correctly.');
	function init_form_fields() {
    	global $woocommerce;
    	$this->form_fields = array(
			'enabled' => array(
				'title' 		=> __( 'Enable', 'woocommerce' ), 
				'type' 			=> 'checkbox', 
				'label' 		=> __( 'Enable FastWay Courier', 'woocommerce' ), 
				'default' 		=> 'yes'
			'api_key' => array(
				'title' 		=> __( 'API Key', 'woocommerce' ), 
				'type' 			=> 'text', 
				'description' 	=> __( 'API reuired to get rates from FastWay.', 'woocommerce' ), 
				'default'		=> ''
			'free_postcode' => array(
				'title' 		=> __( 'Free PostCodes', 'woocommerce' ), 
				'type' 			=> 'text', 
				'description' 	=> __( 'Seperate with commas(,). These PostCode will be shown a Free Shipping Option Only.', 'woocommerce' ), 
				'default'		=> ''
			'availability' => array(
							'title' 		=> __( 'Method availability', 'woocommerce' ), 
							'type' 			=> 'select', 
							'default' 		=> 'all',
							'class'			=> 'availability',
							'options'		=> array(
								'all' 		=> __('All allowed countries', 'woocommerce'),
								'specific' 	=> __('Specific Countries', 'woocommerce')
			'countries' => array(
							'title' 		=> __( 'Specific Countries', 'woocommerce' ), 
							'type' 			=> 'multiselect', 
							'class'			=> 'chosen_select',
							'css'			=> 'width: 450px;',
							'default' 		=> '',
							'options'		=> $woocommerce->countries->countries

	function admin_options() {
		global $woocommerce; ?>
		<h3><?php echo $this->method_title; ?></h3>
		<table class="form-table">
    		<?php $this->generate_settings_html(); ?>
    	</table> <?php

    function is_available( $package ) {
    	global $woocommerce;
    	if ($this->enabled=="no") return false;
		// If post codes are listed, let's use them.
		$codes = '';
		if($this->codes != '') {
			foreach(explode(',',$this->codes) as $code) {
				$codes[] = $this->clean($code);
		if (is_array($codes))
			if ( ! in_array($this->clean( $package['destination']['postcode'] ), $codes))
				return false;
		// Either post codes not setup, or post codes are in array... so lefts check countries for backwards compatability.
		$ship_to_countries = '';
		if ($this->availability == 'specific') :
			$ship_to_countries = $this->countries;
		else :
			if (get_option('woocommerce_allowed_countries')=='specific') :
				$ship_to_countries = get_option('woocommerce_specific_allowed_countries');

		if (is_array($ship_to_countries))
			if (!in_array( $package['destination']['country'] , $ship_to_countries))
				return false;
		// Yay! We passed!
		return apply_filters( 'woocommerce_shipping_' . $this->id . '_is_available', true );
    function clean($code) {
    	return str_replace('-','',sanitize_title($code));
	function getrates($params){
		$url = "";
		$curl = curl_init();		
		curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
		curl_setopt($curl, CURLOPT_URL, $url);
		curl_setopt($curl, CURLOPT_POST, true);
		curl_setopt($curl, CURLOPT_POSTFIELDS, $params);
		curl_setopt($curl, CURLOPT_USERAGENT, "Fastway API PHP Wrapper");
		$raw_result = curl_exec($curl);
		$result = json_decode($raw_result, true);	
		return $result;
function add_fastway_courier_method($methods) { $methods[] = 'WC_FastWay_Courier'; return $methods; }

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Question by:swgdesign
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LVL 110

Accepted Solution

Ray Paseur earned 500 total points
ID: 39855815
It's a little hard to research this because the plug-in appears to be very thinly used (Example: Google cannot find it at WordPress, and CNET has a lifetime download count of 139 and zero reviews).  But that said, it looks like it's a paid product, and the current version may be 1.5+?  According to the code snippet you've got version 1.0 so that may argue for an upgraded version of the plug-in.

Usually when a publisher has an API, the best practices call for a Versioned API, in other words, the publisher will not make a change to the inputs and outputs for any given version and will only make changes like that to a new version of the API.  So if your existing code suddenly broke, you have a support issue with the API vendor.

There is only one cURL call in the scripts and that is devoid of any error visualization.  I would be reluctant to try to talk you through how to get error displays if you're not at least a medium-advanced PHP programmer (too easy to break something), so my first recommendation is contact both the plugin vendor and Fastway.

Sidebar note: Fastway says they have an API, but there seem to be no links to it (?).

Author Closing Comment

ID: 40873874
I had to get the plugin re-coded by someone else as the original developer disappeared! :( Grrr

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