refactored code

Signed-off-by: Maurice Preuß (envoyr) <hello@envoyr.com>

src/Id/Resources/Invoice.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Anikeen\Id\Resources;
+
+use Anikeen\Id\Concerns\HasBillable;
+use Anikeen\Id\Exceptions\RequestRequiresClientIdException;
+use GuzzleHttp\Exception\GuzzleException;
+
+/**
+ * @property string $id
+ */
+class Invoice extends BaseResource
+{
+    use HasBillable;
+
+    /**
+     * Get temporary download url from given invoice.
+     *
+     * @throws RequestRequiresClientIdException
+     * @throws GuzzleException
+     */
+    public function getInvoiceTemporaryUrl(): string
+    {
+        return $this->billable->request('PUT', sprintf('v1/invoices/%s', $this->id))->data->temporary_url;
+    }
+}