title: postman: save response on a global variable
body: <p>With PostMan, how can  save the follow response:</p>
  
  <pre><code>[
      {
          "id": "6254c754-5a97-43fd-9b48-c428b9bd69e5",
          "name": "fdsfds",
          "description": "fdzf",
          "type": 0,
          "createDate": "2018-08-01T17:49:29.071+01:00",
          "lastUpdateDate": "2018-08-01T17:49:29.071+01:00",
          "lastUpdateUser": null,
          "variables": null,
          "instructions": null
      }
  ]
  </code></pre>
  
  <p>on a variable? For example the id? </p>
  
  <pre><code>var jsonData = pm.response.json();
  
  console.log(jsonData.id);
  
  pm.globals.set("variable_key", jsonData.id);
  </code></pre>