Looks like a nice organised way of doing it. Thanks for the suggestion, I will try it :')

@AlvinCaseria there will be various playable characters and they will share storage but not all items can be equipped by different characters because I'm planing to make different classes which will use different types of weapons like Bows, Swords, Assault Rifles, ...

@DMGregory right now I am still coding the registration process but I wanted to know if my approach was any good. I am storing them in two places so I can get the name, search its stats and send them to the client where the player will play the actual game. As I am saying this I am realising that I could just use the item ID......... I thought about posting it on StackOverflow but I did not know if this question was suitable to be asked there. Anyway, thank you :')

And making your game F2P with micro-transactions, that will encourage the developers the most

Yeh but I don't know if it's a normal practice not to implement loading screens.