title: Is Single Page Application needs a Application Server?
body: <p>I'm new to SPA development, so this may be a stupid question. please understand.</p>
  <p>My question is &quot;Is SPA(Single Page Application) needs a Application Server?&quot;</p>
  <p>As I understand it, the SPA gets the response after calling REST API. It use that response to re-render.
  If so, is the server that handles REST API &quot;Application Server&quot;?</p>
  <p>So many posts say Application Server are tomcat, oracle, etc... and they are also say Application Server handle the request to access the database. Then what is &quot;Application Server&quot; in SPA? or there are no Application Server in SPA?
  (Are there any architectures or systems I'm not aware of?)</p>
  <p>If I'm misunderstanding the architecture, please let me know.
  I want to understand web server and Application Server in SPA. So I have read many posts but I'm still confused.</p>
  <p>Thanks.</p>