GazChap's WooCommerce getAddress.io Postcode Lookup

Description

This plugin enables your customers to complete their billing/shipping address by entering their postcode and selecting their address from the options given.

It utilises getAddress.io (https://getaddress.io) to do the lookup using their Royal Mail Postcode Address File.

An API key is required for the integration to work, and the integration only appears when the customer has selected United Kingdom (or, more specifically, the ISO-3166-2 code “GB”) for their country.

It can optionally be turned off for the shipping or billing addresses, and it can be configured to send an email notification to a nominated address if the getAddress.io API key hits its usage limit.

Testing

getAddress.io offers several test postcodes that can be entered to test that it is working without impacting on your usage limits. These are:

XX2 00X - Returns a 'successful' response 200. Your request was successful.
XX4 04X - Returns 'not found' error 404. No addresses could be found for this postcode.
XX4 00X - Returns 'bad request' error 400. Your postcode is not valid.
XX4 01X - Returns 'forbidden' error 401. Your api-key is not valid.
XX4 29X - Returns 'too many requests' error 429. You have made more requests than your allowed limit.
XX5 00X - Returns 'server error' error 500. Server error, you should never see this.

See the getAddress.io documentation (https://getaddress.io/Documentation) for more details.

Requirements

WordPress. Tested up to version 5.2.3.
WooCommerce. Tested with versions up to 3.7.1, minimum version is likely 3.0.0.
getAddress.io API Key. A number of pricing plans are available.

Usage

Once installed and activated, you need to go to the WooCommerce -> Settings -> General page in the WordPress dashboard. You can enter your API key and set your other options here.

Filter Reference

For developers, I’ve included a few filters that you can use to customise certain aspects of the plugin. These are:

Error Messages

All of these filters take one argument, $message, the error message that will be displayed to the user.

gazchaps-woocommerce-getaddress-io_api_error_400 - shown when the postcode supplied is invalid/empty
gazchaps-woocommerce-getaddress-io_api_error_401 - shown when the API key provided in the settings is invalid
gazchaps-woocommerce-getaddress-io_api_error_404 - shown when no addresses were found for the supplied postcode
gazchaps-woocommerce-getaddress-io_api_error_429 - shown when the API key has hit its usage limit
gazchaps-woocommerce-getaddress-io_api_error_500 - shown when there is a server error at getAddress.io

Note: By default, the error messages are “customer friendly”, i.e. they don’t go into much detail about the cause of the error!

Styling

gazchaps-woocommerce-getaddress-io_billing_selector_row_class - changes the CSS class on the form-row that the billing address selector is placed into
gazchaps-woocommerce-getaddress-io_shipping_selector_row_class - changes the CSS class on the form-row that the shipping address selector is placed into
gazchaps-woocommerce-getaddress-io_clear_additional_fields - defaults to true, set to '__return_false' to stop the "additional fields" area of the checkout having a clear style applied to it

Over Usage Email Notification

gazchaps-woocommerce-getaddress-io_overusage_email_recipient - change the recipient passed to wp_mail()
gazchaps-woocommerce-getaddress-io_overusage_email_subject - change the subject line passed to wp_mail() for the over-usage email
gazchaps-woocommerce-getaddress-io_overusage_email_message - change the message body passed to wp_mail() for the over-usage email<h3>License</h3>Licensed under the [GNU General Public License v2.0](http://www.gnu.org/licenses/gpl-2.0.html)

Screenshots

  • The Find Address button on the default Storefront theme, before the lookup has been completed
  • The address selection drop-down menu on display
  • The administrator settings in the WooCommerce administration dashboard

Installation

Install via the WordPress Plugin Directory, or download a release from this repository and install as you would a normal WordPress plugin.

Contributors & Developers

“GazChap's WooCommerce getAddress.io Postcode Lookup” is open source software. The following people have contributed to this plugin.

Contributors

Changelog

1.2 (02/05/2019)

  • Fixed a bug that caused the JavaScript to stop running prematurely if a particular address field was not present on the checkout page. Thanks to Max Devlin for the report.

1.1 (25/02/2019)

  • Added a caching mechanism to prevent repeated lookups for the same postcode in the same browser session, thus saving API usage

1.0 (24/02/2019)

  • Initial release.