Done

src/LaravelBitunixApi.php

@@ -18,26 +18,38 @@ use Msr\LaravelBitunixApi\Requests\Header;
 use Msr\LaravelBitunixApi\Requests\PlaceOrderRequestContract;
 use Msr\LaravelBitunixApi\Requests\PlacePositionTpSlOrderRequestContract;
 use Msr\LaravelBitunixApi\Requests\PlaceTpSlOrderRequestContract;
+use Msr\LaravelBitunixApi\Support\BitunixAccountConfig;
 use Psr\Http\Message\ResponseInterface;
 
 class LaravelBitunixApi implements ChangeLeverageRequestContract, ChangeMarginModeRequestContract, FlashClosePositionRequestContract, FutureKLineRequestContract, GetHistoryPositionsRequestContract, GetHistoryTradesRequestContract, GetPendingPositionsRequestContract, GetSingleAccountRequestContract, GetTradingPairsRequestContract, PlaceOrderRequestContract, PlacePositionTpSlOrderRequestContract, PlaceTpSlOrderRequestContract
 {
     private Client $publicFutureClient;
 
+    protected BitunixAccountConfig $config;
+
     public function __construct(protected RateLimiter $rateLimiter)
     {
+        $this->config = BitunixAccountConfig::fromConfig();
+
         $this->publicFutureClient = new Client([
-            'base_uri' => config('bitunix-api.future_base_uri').'/api/v1/futures/market/',
+            'base_uri' => ($this->config->baseUrl ?? config('bitunix-api.future_base_uri')).'/api/v1/futures/market/',
         ]);
     }
 
+    public function forAccount(BitunixAccountConfig $config): self
+    {
+        $this->config = $config;
+
+        return $this;
+    }
+
     protected function getPrivateFutureClient(array $queryParams = [], array $body = []): Client
     {
         $bodyString = count($body) ? json_encode($body) : '';
-        $headers = Header::generateHeaders($queryParams, $bodyString);
+        $headers = Header::generateHeaders($queryParams, $bodyString, $this->config);
 
         return new Client([
-            'base_uri' => config('bitunix-api.future_base_uri').'/api/v1/futures/',
+            'base_uri' => ($this->config->baseUrl ?? config('bitunix-api.future_base_uri')).'/api/v1/futures/',
             'headers' => $headers,
         ]);
     }
@@ -409,6 +421,6 @@ class LaravelBitunixApi implements ChangeLeverageRequestContract, ChangeMarginMo
 
     protected function resolveRateLimitIdentity(): string
     {
-        return (string) config('bitunix-api.api_key');
+        return (string) ($this->config->accountKey ?? $this->config->apiKey);
     }
 }