title: How to make POST request to Rest API?
body: <p>I spend hours of time to find out how it works. But no luck.
  I send a upload with POST request to Laravel, but <code>formData.append()</code> in Angular send to RestApi has empty request. Why? This is my Angular Observable:</p>
  <pre><code>const formData: FormData = new FormData();
  formData.append('file_name', file.name);
  </code></pre>
  <p>In Console.log I get file.name and all seems correct.
  This is my Post:</p>
  <pre><code>const req = new HttpRequest('POST', this.apiUrl, formData, {headers:reqHeader});
  </code></pre>
  <p>My header I am sending has content-type:</p>
  <pre><code>'Content-Type': 'application/json',
  </code></pre>
  <p>In laravel request-&gt;all() is empty, but why? What is missing that I don`t get data from formData?</p>