SOLVED CS412 PS5: Cache

 Requirement 0. Create a new branch, PS5. For this assignment, you’re extending what you did in PS4, so it makes sense to branch from there. Be sure that your .gitignore le has an entry to exclude /node_modules and your cong directory from being pushed to github 1. Refactor your Node app from PS4 to incorporate a simple redis cache on your POST route. When the route in your app is called, rst check your cache to see if you have a valid response. If not, call the third-party API and then cache the response before returning it to the client, otherwise return the cached value. Use a 15-second timeout on the cache entry 2. Refactor your response on this route to send a JSON object back to the client instead of rendering a template. The response should include a eld that indicates whether the data came from cache or not 3. Submit just the route le (you can leave it's name as PS4.js if you like) on Gradescope to complete the assignment.