Fix other endpoint.

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

@@ -25,11 +25,12 @@ declare(strict_types=1);
 namespace FireflyIII\Api\V1\Controllers\Models\CurrencyExchangeRate;
 
 use Carbon\Carbon;
+use FireflyIII\Api\V1\Controllers\Controller;
+use FireflyIII\Api\V1\Requests\Models\CurrencyExchangeRate\StoreByCurrenciesRequest;
 use FireflyIII\Api\V1\Requests\Models\CurrencyExchangeRate\StoreByDateRequest;
+use FireflyIII\Api\V1\Requests\Models\CurrencyExchangeRate\StoreRequest;
 use FireflyIII\Enums\UserRoleEnum;
 use FireflyIII\Models\CurrencyExchangeRate;
-use FireflyIII\Api\V1\Requests\Models\CurrencyExchangeRate\StoreRequest;
-use FireflyIII\Api\V1\Controllers\Controller;
 use FireflyIII\Models\TransactionCurrency;
 use FireflyIII\Repositories\ExchangeRate\ExchangeRateRepositoryInterface;
 use FireflyIII\Support\Http\Api\ValidatesUserGroupTrait;
@@ -59,7 +60,37 @@ class StoreController extends Controller
         );
     }
 
-    public function storeByDate(StoreByDateRequest $request, Carbon $date): JsonResponse {
+    public function storeByCurrencies(StoreByCurrenciesRequest $request, TransactionCurrency $from, TransactionCurrency $to): JsonResponse
+    {
+
+        $data       = $request->getAll();
+        $collection = new Collection();
+
+        foreach ($data as $date => $rate) {
+            $date     = Carbon::createFromFormat('Y-m-d', $date);
+            $existing = $this->repository->getSpecificRateOnDate($from, $to, $date);
+            if (null !== $existing) {
+                // update existing rate.
+                $existing = $this->repository->updateExchangeRate($existing, $rate);
+                $collection->push($existing);
+                continue;
+            }
+            $new = $this->repository->storeExchangeRate($from, $to, $rate, $date);
+            $collection->push($new);
+        }
+
+        $count       = $collection->count();
+        $paginator   = new LengthAwarePaginator($collection, $count, $count, 1);
+        $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);
+    }
+
+    public function storeByDate(StoreByDateRequest $request, Carbon $date): JsonResponse
+    {
 
         $data       = $request->getAll();
         $from       = $request->getFromCurrency();
@@ -76,11 +107,9 @@ class StoreController extends Controller
                 $collection->push($existing);
                 continue;
             }
-            if(null === $existing) {
             $new = $this->repository->storeExchangeRate($from, $to, $rate, $date);
             $collection->push($new);
         }
-        }
 
         $count       = $collection->count();
         $paginator   = new LengthAwarePaginator($collection, $count, $count, 1);
@@ -89,8 +118,7 @@ class StoreController extends Controller
 
         return response()
             ->json($this->jsonApiList(self::RESOURCE_KEY, $paginator, $transformer))
-            ->header('Content-Type', self::CONTENT_TYPE)
-            ;
+            ->header('Content-Type', self::CONTENT_TYPE);
     }
 
     public function store(StoreRequest $request): JsonResponse
@@ -116,7 +144,6 @@ class StoreController extends Controller
 
         return response()
             ->api($this->jsonApiObject(self::RESOURCE_KEY, $rate, $transformer))
-            ->header('Content-Type', self::CONTENT_TYPE)
-        ;
+            ->header('Content-Type', self::CONTENT_TYPE);
     }
 }

app/Api/V1/Requests/Models/CurrencyExchangeRate/StoreByCurrenciesRequest.php

@@ -0,0 +1,73 @@
+<?php
+
+/*
+ * StoreRequest.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\Requests\Models\CurrencyExchangeRate;
+
+use Carbon\Carbon;
+use Carbon\Exceptions\InvalidFormatException;
+use FireflyIII\Support\Request\ChecksLogin;
+use FireflyIII\Support\Request\ConvertsDataTypes;
+use Illuminate\Contracts\Validation\Validator;
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreByCurrenciesRequest extends FormRequest
+{
+    use ChecksLogin;
+    use ConvertsDataTypes;
+
+    public function getAll(): array
+    {
+        return $this->all();
+    }
+
+    /**
+     * The rules that the incoming request must be matched against.
+     */
+    public function rules(): array
+    {
+        return [
+            '*' => 'required|numeric|min:0.0000000001',
+        ];
+    }
+
+    public function withValidator(Validator $validator): void
+    {
+        $validator->after(
+            static function (Validator $validator): void {
+                $data = $validator->getData() ?? [];
+                foreach ($data as $date => $rate) {
+                    try {
+                        $date = Carbon::createFromFormat('Y-m-d', $date);
+                    } catch (InvalidFormatException $e) {
+                        $validator->errors()->add('date', 'Invalid date info');
+                        return;
+                    }
+                    if (!is_numeric($rate)) {
+                        $validator->errors()->add('rate', 'Rate must be a number.');
+                        return;
+                    }
+                }
+            });
+    }
+}