XML JSON Mongodb

[GCMD]

Hi

We are receiving following xml file , we would like to convert it into json and store in mongodb , what would be the best approach?

<data>

<subject>This is test</subject>

<states>

<state>CT</state>

<state>NY</state>

<state>NJ</state>

</states>

 <categories>

      <category>1</category>

      <category>2</category>

      <category>3/category>

   </categories>

</data>