Algorithm to Create Unique User Id with Objective C

Question

I am creating an online social app. I need a way to create a lot of random unique ID like userId, chatRoom Id things like that. Not only that, I want to make sure that this algorithm can be created with Java or C#. Should I use NSUUID? everytime you create a new NSUUID it will create a new unique string right? Or is there any easy way I can create one using timeStamp?

Answer 1

You can use UUIDs for that. Java and C# have implementations to generate them. In Java use java.util.UUID.randomUUID(); in C# you can use Guid.NewGuid(); .

Answer 2

Have a look at Hashids .

I believe it has versions for multiple languages and would suit your needs.