Best way to develop Translator plugin using Microsoft Text Translation API

[Kiranped]

We are using 'Google Translator' widget on Confluence Header. Due to security constraint, we are trying to develop a Translator plugin (for Confluence) which use Microsoft Text Translation API for secure translation. 

Text API reference: https://www.microsoft.com/en-us/translator/translatorapi.aspx

Can we have Microsoft Translator widget for confluence which can interact to Azure with subscription-Key?

using HttpsURLConnection ( to URL https://api.cognitive.microsofttranslator.com and using subscriptionKey) I am able to POST and get the translated text. How do I translate Confluence Page content?

Kindly provide your suggestion / best-practice