Update Browser with latest JSON file to browser smoothly

Our POS system exports a JSON file with each new or deleted item in the register. This job is to constantly look for the latest JSON file and display it on the browser. See Details in [login to view URL] I have also included a Program that would create a stream of JSON files to mimic the POS Include the word BlueMagic in your offer Outline your solution and tools you would use for this- this job should be easy for anyone experience in java scripting and should be budgeted for $50 or lower Also including some js file, someone did with issues