API: Add some missing end points

api/v1/payments/delete.php

@@ -0,0 +1,29 @@
+<?php
+
+require_once '../validate_api_key.php';
+
+require_once '../require_post_method.php';
+
+// Parse ID
+$payment_id = intval($_POST['payment_id']);
+
+// Default
+$delete_count = false;
+
+// Payments require All Clients scope
+if (!empty($payment_id) && $client_id == 0) {
+    $row = mysqli_fetch_assoc(mysqli_query($mysqli, "SELECT * FROM payments WHERE payment_id = $payment_id LIMIT 1"));
+    $payment_exists = $row['payment_id'];
+
+    $delete_sql = mysqli_query($mysqli, "DELETE FROM payments WHERE payment_id = $payment_id LIMIT 1");
+
+    if ($delete_sql && !empty($payment_exists)) {
+        $delete_count = mysqli_affected_rows($mysqli);
+
+        // Logging
+        logAction("Payment", "Delete", "Payment $payment_id via API ($api_key_name)", 0);
+    }
+}
+
+// Output
+require_once '../delete_output.php';