Hi Samit,
I will be working on a similar app that grabs the content from Google News, Stores it into a firebase DB and then render the content on a webpage.
I was actually making some research on the Google News Search API and I fell on your blog post. For now, I recommend you read about Google News Search
Angular JS is very easy to learn and the website has example to help you get started. In our present case (Google News Search API), I suggest you read about
They even provide an example on how to get started at the end of the tutorial.
I hope this helps you. In any case,
I will keep you guys posted.