Small update to frontend and associated code.

app/Api/V2/Controllers/Transaction/Sum/BillController.php

@@ -0,0 +1,33 @@
+<?php
+/*
+ * BillController.php
+ * Copyright (c) 2022 james@firefly-iii.org
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace FireflyIII\Api\V2\Controllers\Transaction\Sum;
+
+use FireflyIII\Api\V2\Controllers\Controller;
+
+/**
+ * Class BillController
+ */
+class BillController extends Controller
+{
+
+
+}

app/Api/V2/Request/Generic/DateRequest.php

@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * DateRequest.php
+ * Copyright (c) 2021 james@firefly-iii.org
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+namespace FireflyIII\Api\V2\Request\Generic;
+
+use FireflyIII\Support\Request\ChecksLogin;
+use FireflyIII\Support\Request\ConvertsDataTypes;
+use Illuminate\Foundation\Http\FormRequest;
+
+/**
+ * Request class for end points that require date parameters.
+ *
+ * Class DateRequest
+ */
+class DateRequest extends FormRequest
+{
+    use ConvertsDataTypes, ChecksLogin;
+
+    /**
+     * Get all data from the request.
+     *
+     * @return array
+     */
+    public function getAll(): array
+    {
+        return [
+            'start' => $this->getCarbonDate('start'),
+            'end'   => $this->getCarbonDate('end'),
+        ];
+    }
+
+    /**
+     * The rules that the incoming request must be matched against.
+     *
+     * @return array
+     */
+    public function rules(): array
+    {
+        return [
+            'start' => 'required|date',
+            'end'   => 'required|date|after:start',
+        ];
+    }
+}