title: How do I send a Google API POST request using Jmeter?
body: <p>I have never used Jmeter before. I have been trying to use Jmeter to send an HTTP request to Google Vision API - but it's returning a FORBIDDEN (403) error. My request as well as required response is in JSON format.<br>
  I have attached below the:<br>
  a) HTTP Request<br>
  b) Response Error  </p>
  
  <p>Other than this, in HTTP Header Manager I have set:<br>
  Content-Type: application/json</p>
  
  <p>What is wrong with the attached request?<br>
  <a href="https://i.stack.imgur.com/zNz2y.png" rel="nofollow noreferrer">Request image.. </a><br>
  <a href="https://i.stack.imgur.com/AapNj.png" rel="nofollow noreferrer">Response error image</a>   </p>