Merge branch 'feature/optimize' into develop

api/controllers/MarketController.php

@@ -34,6 +34,13 @@ class MarketController extends BaseController
         return ['code' => $code, 'msg' => $msg, 'tick' => $ticker ?? []];
     }
 
+    public function actionExchange()
+    {
+        $exchanges = Yii::$app->params['exchange'];
+
+        return ['code' => $this->code, 'msg' => $this->msg, 'data' => $exchanges];
+    }
+
     public function actionIndex()
     {
         $currency = Yii::$app->request->post('currency', '');
@@ -45,6 +52,12 @@ class MarketController extends BaseController
             goto doEnd;
         }
 
+        if (false == $exchange || !in_array($exchange, Yii::$app->params['exchange'])) {
+            $this->msg = 'invalid exchange';
+            $this->code = -1;
+            goto doEnd;
+        }
+
         $exchange = ExchangeFactory::createExchange($exchange);
         $currency_ticker = $exchange->getTicker($currency, 'USDT');
         $base_currency_ticker = $exchange->getTicker($base_currency, 'USDT');
@@ -67,10 +80,11 @@ class MarketController extends BaseController
             'rmb' => (float)sprintf("%0.2f", $base_currency_ticker['last']),
         ];
 
-        $this->data =  (float)sprintf("%0.4f",$currency_quotation['last'] / $base_currency_quotation['last']);
+        $this->data =  rtrim(sprintf('%.6f',$currency_quotation['last'] / $base_currency_quotation['last']), '0');
 
         doEnd :
 
         return ['code' => $this->code, 'msg' => $this->msg, 'data' => $this->data];
     }
+
 }
\ No newline at end of file