title: string value is Empty when using FromBody in asp.net web api
body: <p>I am using asp.net core web api. below is my simple post function which is having a single string parameter. The problem is when I use [FromBody] the string stays null. I am using PostMan to test my service. I want raw data to pass from client to my controller. In Postman I am selecting body type RAW and 
  I set the header Content-Type text/plain. The Raw Body contains Just "Hello World" string.</p>
  
  <pre><code>[HttpPost]
          [Route("hosted-services/tokenize-card")]
          public IActionResult Test([FromRoute]decimal businessKey,[FromBody] string body)
          {
              var data = businessKey;
              return new JsonResult("Hello World");
          }
  </code></pre>