Catch API endpoint errors.

app/Api/V1/Controllers/Models/CurrencyExchangeRate/DestroyController.php

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+<?php
+
+/*
+ * DestroyController.php
+ * Copyright (c) 2025 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\V1\Controllers\Models\CurrencyExchangeRate;
+
+use FireflyIII\Api\V2\Controllers\Controller;
+use FireflyIII\Api\V2\Request\Model\ExchangeRate\DestroyRequest;
+use FireflyIII\Models\TransactionCurrency;
+use FireflyIII\Repositories\UserGroups\ExchangeRate\ExchangeRateRepositoryInterface;
+use FireflyIII\Support\Http\Api\ValidatesUserGroupTrait;
+use Illuminate\Http\JsonResponse;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+
+class DestroyController extends Controller
+{
+    use ValidatesUserGroupTrait;
+
+    public const string RESOURCE_KEY = 'exchange-rates';
+
+    private ExchangeRateRepositoryInterface $repository;
+
+    public function __construct()
+    {
+        parent::__construct();
+        $this->middleware(
+            function ($request, $next) {
+                $this->repository = app(ExchangeRateRepositoryInterface::class);
+                $this->repository->setUserGroup($this->validateUserGroup($request));
+
+                return $next($request);
+            }
+        );
+    }
+
+    public function destroy(DestroyRequest $request, TransactionCurrency $from, TransactionCurrency $to): JsonResponse
+    {
+        $date = $request->getDate();
+        $rate = $this->repository->getSpecificRateOnDate($from, $to, $date);
+        if (null === $rate) {
+            throw new NotFoundHttpException();
+        }
+        $this->repository->deleteRate($rate);
+
+        return response()->json([], 204);
+    }
+}

app/Api/V1/Controllers/Models/CurrencyExchangeRate/IndexController.php

@@ -0,0 +1,76 @@
+<?php
+
+/*
+ * IndexController.php
+ * Copyright (c) 2025 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\V1\Controllers\Models\CurrencyExchangeRate;
+
+use FireflyIII\Api\V2\Controllers\Controller;
+use FireflyIII\Repositories\UserGroups\ExchangeRate\ExchangeRateRepositoryInterface;
+use FireflyIII\Support\Http\Api\ValidatesUserGroupTrait;
+use FireflyIII\Transformers\V2\ExchangeRateTransformer;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Pagination\LengthAwarePaginator;
+
+/**
+ * Class ShowController
+ */
+class IndexController extends Controller
+{
+    use ValidatesUserGroupTrait;
+
+    public const string RESOURCE_KEY = 'exchange_rates';
+
+    private ExchangeRateRepositoryInterface $repository;
+
+    public function __construct()
+    {
+        parent::__construct();
+        $this->middleware(
+            function ($request, $next) {
+                $this->repository = app(ExchangeRateRepositoryInterface::class);
+                $this->repository->setUserGroup($this->validateUserGroup($request));
+
+                return $next($request);
+            }
+        );
+    }
+
+    public function index(): JsonResponse
+    {
+        $piggies     = $this->repository->getAll();
+        $pageSize    = $this->parameters->get('limit');
+        $count       = $piggies->count();
+        $piggies     = $piggies->slice(($this->parameters->get('page') - 1) * $pageSize, $pageSize);
+        $paginator   = new LengthAwarePaginator($piggies, $count, $pageSize, $this->parameters->get('page'));
+
+        var_dump('here we are');
+
+        $transformer = new ExchangeRateTransformer();
+        $transformer->setParameters($this->parameters); // give params to transformer
+
+        return response()
+            ->json($this->jsonApiList(self::RESOURCE_KEY, $paginator, $transformer))
+            ->header('Content-Type', self::CONTENT_TYPE)
+        ;
+    }
+}

app/Api/V1/Controllers/Models/CurrencyExchangeRate/ShowController.php

@@ -0,0 +1,76 @@
+<?php
+
+/*
+ * ShowController.php
+ * Copyright (c) 2025 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\V1\Controllers\Models\CurrencyExchangeRate;
+
+use FireflyIII\Api\V2\Controllers\Controller;
+use FireflyIII\Models\TransactionCurrency;
+use FireflyIII\Repositories\UserGroups\ExchangeRate\ExchangeRateRepositoryInterface;
+use FireflyIII\Support\Http\Api\ValidatesUserGroupTrait;
+use FireflyIII\Transformers\V2\ExchangeRateTransformer;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Pagination\LengthAwarePaginator;
+
+/**
+ * Class ShowController
+ */
+class ShowController extends Controller
+{
+    use ValidatesUserGroupTrait;
+
+    public const string RESOURCE_KEY = 'exchange-rates';
+
+    private ExchangeRateRepositoryInterface $repository;
+
+    public function __construct()
+    {
+        parent::__construct();
+        $this->middleware(
+            function ($request, $next) {
+                $this->repository = app(ExchangeRateRepositoryInterface::class);
+                $this->repository->setUserGroup($this->validateUserGroup($request));
+
+                return $next($request);
+            }
+        );
+    }
+
+    public function show(TransactionCurrency $from, TransactionCurrency $to): JsonResponse
+    {
+        $pageSize    = $this->parameters->get('limit');
+        $page        = $this->parameters->get('page');
+        $rates       = $this->repository->getRates($from, $to);
+        $count       = $rates->count();
+        $rates       = $rates->slice(($page - 1) * $pageSize, $pageSize);
+        $paginator   = new LengthAwarePaginator($rates, $count, $pageSize, $page);
+
+        $transformer = new ExchangeRateTransformer();
+        $transformer->setParameters($this->parameters); // give params to transformer
+
+        return response()
+            ->json($this->jsonApiList(self::RESOURCE_KEY, $paginator, $transformer))
+            ->header('Content-Type', self::CONTENT_TYPE)
+        ;
+    }
+}

app/Api/V1/Controllers/Models/CurrencyExchangeRate/StoreController.php

@@ -0,0 +1,81 @@
+<?php
+
+/*
+ * StoreController.php
+ * Copyright (c) 2025 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\V1\Controllers\Models\CurrencyExchangeRate;
+
+use FireflyIII\Api\V2\Controllers\Controller;
+use FireflyIII\Api\V2\Request\Model\ExchangeRate\StoreRequest;
+use FireflyIII\Repositories\UserGroups\ExchangeRate\ExchangeRateRepositoryInterface;
+use FireflyIII\Support\Http\Api\ValidatesUserGroupTrait;
+use FireflyIII\Transformers\V2\ExchangeRateTransformer;
+use Illuminate\Http\JsonResponse;
+
+class StoreController extends Controller
+{
+    use ValidatesUserGroupTrait;
+
+    public const string RESOURCE_KEY = 'exchange-rates';
+
+    private ExchangeRateRepositoryInterface $repository;
+
+    public function __construct()
+    {
+        parent::__construct();
+        $this->middleware(
+            function ($request, $next) {
+                $this->repository = app(ExchangeRateRepositoryInterface::class);
+                $this->repository->setUserGroup($this->validateUserGroup($request));
+
+                return $next($request);
+            }
+        );
+    }
+
+    public function store(StoreRequest $request): JsonResponse
+    {
+        $date        = $request->getDate();
+        $rate        = $request->getRate();
+        $from        = $request->getFromCurrency();
+        $to          = $request->getToCurrency();
+
+        // already has rate?
+        $object      = $this->repository->getSpecificRateOnDate($from, $to, $date);
+        if (null !== $object) {
+            // just update it, no matter.
+            $rate = $this->repository->updateExchangeRate($object, $rate, $date);
+        }
+        if (null === $object) {
+            // store new
+            $rate = $this->repository->storeExchangeRate($from, $to, $rate, $date);
+        }
+
+        $transformer = new ExchangeRateTransformer();
+        $transformer->setParameters($this->parameters);
+
+        return response()
+            ->api($this->jsonApiObject(self::RESOURCE_KEY, $rate, $transformer))
+            ->header('Content-Type', self::CONTENT_TYPE)
+        ;
+    }
+}

app/Api/V1/Controllers/Models/CurrencyExchangeRate/UpdateController.php

@@ -0,0 +1,69 @@
+<?php
+
+/*
+ * UpdateController.php
+ * Copyright (c) 2025 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\V1\Controllers\Models\CurrencyExchangeRate;
+
+use FireflyIII\Api\V2\Controllers\Controller;
+use FireflyIII\Api\V2\Request\Model\ExchangeRate\UpdateRequest;
+use FireflyIII\Models\CurrencyExchangeRate;
+use FireflyIII\Repositories\UserGroups\ExchangeRate\ExchangeRateRepositoryInterface;
+use FireflyIII\Support\Http\Api\ValidatesUserGroupTrait;
+use FireflyIII\Transformers\V2\ExchangeRateTransformer;
+use Illuminate\Http\JsonResponse;
+
+class UpdateController extends Controller
+{
+    use ValidatesUserGroupTrait;
+
+    public const string RESOURCE_KEY = 'exchange-rates';
+
+    private ExchangeRateRepositoryInterface $repository;
+
+    public function __construct()
+    {
+        parent::__construct();
+        $this->middleware(
+            function ($request, $next) {
+                $this->repository = app(ExchangeRateRepositoryInterface::class);
+                $this->repository->setUserGroup($this->validateUserGroup($request));
+
+                return $next($request);
+            }
+        );
+    }
+
+    public function update(UpdateRequest $request, CurrencyExchangeRate $exchangeRate): JsonResponse
+    {
+        $date         = $request->getDate();
+        $rate         = $request->getRate();
+        $exchangeRate = $this->repository->updateExchangeRate($exchangeRate, $rate, $date);
+        $transformer  = new ExchangeRateTransformer();
+        $transformer->setParameters($this->parameters);
+
+        return response()
+            ->api($this->jsonApiObject(self::RESOURCE_KEY, $exchangeRate, $transformer))
+            ->header('Content-Type', self::CONTENT_TYPE)
+        ;
+    }
+}