Hi,
We have done many projects on spring boot.
As per your requirement, you want to store JSON object in your db using rest API. The problem is easy to solve. Just wanted to know if you want to store it in MySQL or similar SQL db or MongoDB like NoSQL db. In both cases this is possible, but it all depend upon how and where you want to use this db ?
Please initiate the chat so that we can discuss your solution. I would be happy to do this project on fixed cost bases as the scope seems fit to it.