future-private: add placeTpSlOrder request

src/Requests/PlaceTpSlOrderRequestContract.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace Msr\LaravelBitunixApi\Requests;
+
+use Psr\Http\Message\ResponseInterface;
+
+interface PlaceTpSlOrderRequestContract
+{
+    /**
+     * Place TP/SL Order
+     *
+     * @param  string  $symbol  Trading pair
+     * @param  string  $positionId  Position ID associated with take-profit and stop-loss
+     * @param  string|null  $tpPrice  Take-profit trigger price
+     * @param  string|null  $tpStopType  Take-profit trigger type (LAST_PRICE/MARK_PRICE)
+     * @param  string|null  $slPrice  Stop-loss trigger price
+     * @param  string|null  $slStopType  Stop-loss trigger type (LAST_PRICE/MARK_PRICE)
+     * @param  string|null  $tpOrderType  Take-profit order type (LIMIT/MARKET)
+     * @param  string|null  $tpOrderPrice  Take-profit order price
+     * @param  string|null  $slOrderType  Stop-loss order type (LIMIT/MARKET)
+     * @param  string|null  $slOrderPrice  Stop-loss order price
+     * @param  string|null  $tpQty  Take-profit order quantity (base coin)
+     * @param  string|null  $slQty  Stop-loss order quantity (base coin)
+     */
+    public function placeTpSlOrder(
+        string $symbol,
+        string $positionId,
+        ?string $tpPrice = null,
+        ?string $tpStopType = null,
+        ?string $slPrice = null,
+        ?string $slStopType = null,
+        ?string $tpOrderType = null,
+        ?string $tpOrderPrice = null,
+        ?string $slOrderType = null,
+        ?string $slOrderPrice = null,
+        ?string $tpQty = null,
+        ?string $slQty = null
+    ): ResponseInterface;
+}