future-private: add flash close position request

src/LaravelBitunixApi.php

@@ -5,12 +5,13 @@ namespace Msr\LaravelBitunixApi;
 use GuzzleHttp\Client;
 use Msr\LaravelBitunixApi\Requests\ChangeLeverageRequestContract;
 use Msr\LaravelBitunixApi\Requests\ChangeMarginModeRequestContract;
+use Msr\LaravelBitunixApi\Requests\FlashClosePositionRequestContract;
 use Msr\LaravelBitunixApi\Requests\FutureKLineRequestContract;
 use Msr\LaravelBitunixApi\Requests\Header;
 use Msr\LaravelBitunixApi\Requests\PlaceOrderRequestContract;
 use Psr\Http\Message\ResponseInterface;
 
-class LaravelBitunixApi implements ChangeLeverageRequestContract, ChangeMarginModeRequestContract, FutureKLineRequestContract, PlaceOrderRequestContract
+class LaravelBitunixApi implements ChangeLeverageRequestContract, ChangeMarginModeRequestContract, FlashClosePositionRequestContract, FutureKLineRequestContract, PlaceOrderRequestContract
 {
     private Client $publicFutureClient;
 
@@ -153,4 +154,17 @@ class LaravelBitunixApi implements ChangeLeverageRequestContract, ChangeMarginMo
 
         return $response;
     }
+
+    public function flashClosePosition(string $positionId): ResponseInterface
+    {
+        $body = [
+            'positionId' => $positionId,
+        ];
+
+        $response = $this->getPrivateFutureClient([], $body)->post('trade/flash_close_position', [
+            'json' => $body,
+        ]);
+
+        return $response;
+    }
 }

src/LaravelBitunixApiServiceProvider.php

@@ -5,6 +5,7 @@ namespace Msr\LaravelBitunixApi;
 use Msr\LaravelBitunixApi\Commands\LaravelBitunixApiCommand;
 use Msr\LaravelBitunixApi\Requests\ChangeLeverageRequestContract;
 use Msr\LaravelBitunixApi\Requests\ChangeMarginModeRequestContract;
+use Msr\LaravelBitunixApi\Requests\FlashClosePositionRequestContract;
 use Msr\LaravelBitunixApi\Requests\FutureKLineRequestContract;
 use Msr\LaravelBitunixApi\Requests\PlaceOrderRequestContract;
 use Spatie\LaravelPackageTools\Package;
@@ -35,5 +36,6 @@ class LaravelBitunixApiServiceProvider extends PackageServiceProvider
         $this->app->bind(ChangeLeverageRequestContract::class, LaravelBitunixApi::class);
         $this->app->bind(ChangeMarginModeRequestContract::class, LaravelBitunixApi::class);
         $this->app->bind(PlaceOrderRequestContract::class, LaravelBitunixApi::class);
+        $this->app->bind(FlashClosePositionRequestContract::class, LaravelBitunixApi::class);
     }
 }

src/Requests/FlashClosePositionRequestContract.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Msr\LaravelBitunixApi\Requests;
+
+use Psr\Http\Message\ResponseInterface;
+
+interface FlashClosePositionRequestContract
+{
+    /**
+     * Flash close position by position ID
+     *
+     * @param string $positionId Position ID
+     * @return ResponseInterface
+     */
+    public function flashClosePosition(string $positionId): ResponseInterface;
+}