title: Put unirest string response into a hashmap
body: <p>I have a string response from a unirest request that I made and I was wondering if I could put the result into a HashMap for easier access of the response fields. Any suggestion will be helpful.</p>
  
  <p>Here is a sample of the response:</p>
  
  <pre><code>{
      "access_token":"HzDzAtlom6CDqRa0zPetH09hZbDr8tm__hPw7aCx2m0h0gnGwHMaKvBEp64sHRUCJJEAlhCNUqQ3tBSyvod_93gTnt145W2ly9KKw5ISmaZRN75O9NUfJUGPRd0LH87LlxiRgHNFkUGTUDwyJOmhYNajj7TQoncxqkfc3jxL-jEi3Ea1cGRvOSmLH5Aqom81kKmiRzPV_Ss0xwFWjQVsS03y_P720Hv1BQEayO9L7Vic4A64GmXm3PlFQuwcvOk3M_7WOa_EEGOFBZdhwn7dzNQ7gypJ27MSTOD3gI57880unF4XFgTT_H4p4G5V6C8L8yRbRNXPIe80gLKYk3F3nw",
      "token_type":"bearer",
      "expires_in":3599,
      "refresh_token":"f87a5fea7d764826be24bd742626d0d8",
      "as:client_id":"paymentApp",
      "username":"savemore01",
      ".issued":"Wed, 05 Dec 2018 03:13:23 GMT",
      ".expires":"Wed, 05 Dec 2018 04:13:23 GMT"
  }
  </code></pre>
  
  <p>I tried to use split by using the comma(,) as a delimiter but the date and time fields got messed up. I hope someone could help.</p>