change code in some item

app/Services/FMS/GetErrorRateService.php

@@ -16,8 +16,6 @@ class GetErrorRateService
 
     public function __construct()
     {
-        $this->url = config('fms_web_services.Error_Rate.url');
-        $this->password = config('fms_web_services.Error_Rate.password');
         $this->username = config('fms_web_services.Error_Rate.username');
         $this->channelName = 'fms_error_rate';
     }
@@ -49,22 +47,10 @@ class GetErrorRateService
 
     public function sendRequest(): array
     {
-        $inputData = $this->makeInputParameters();
-
-        return Http::withBody($inputData)
+        return Http::withHeaders(['Content-Type' => 'application/json'])
             ->throw()
             ->withoutVerifying()
-            ->post($this->url)
+            ->post($this->url, $this->inputParameters)
             ->json();
     }
-
-    private function makeInputParameters(): string
-    {
-        $inputData = $this->inputParameters + array(
-            "username" => $this->username,
-            "password" => $this->password,
-        );
-
-        return json_encode($inputData);
-    }
 }