“Sorry, there was a problem preparing your payment.”

Hey,

Customers were getting an error at checkout:

“Sorry, there was a problem preparing your payment.”

There was a corresponding PHP Notice:

“Trying to get property ‘token’ of non-object in /…/wp-content/plugins/sezzle-woocommerce-payment/woocommerce-gateway-sezzle.php on line 558”

which is in the get_sezzlepay_authorization_code() function.

We were able to fix it by resetting our API keys.

You might want to catch that with:

if( ! is_object( $body ) || ! isset( $body->token ) ) {
    set_transient( 'sezzle_api_error', 'Bearer token missing from get_sezzlepay_authorization_code() response. Try resetting your API keys or contact support.', WEEK_IN_SECONDS );
    throw new Exception('Problem communicating with Sezzle');
} else {
    delete_transient( 'sezzle_api_error' );
    return "Bearer $body->token";
}

then add in your constructor:

add_action( 'admin_notices', function() {
  $message = get_transient('sezzle_api_error');
  if( !empty( $message ) ) {
    echo '<div class="notice error is-dismissible"> <p><strong>' . $message . '</strong></p> </div>';
  }
});

That way, site admins/shop managers will know there is a problem as soon as it happens to one customer.