Customer → Server(1) ↓ ⇢ A customer serches for a product on my app ⇡ The request is sent to the server My shopping mall website(app) ↓↑ ⇢ It connected to a database which contains all my product data along with other data we're collecting from the app Database → Server(2) ↓ ⇡ looks up the product within the database ↓ ⇢ product info is sent back to the server Server(3) ↓ ⇢ product info can be r..
