Unable to make User collection indexes unique

[martin-masse]

Hi,

I was looking at making the index on NormalizedEmail and NormalizedUserName unique. It does not seems to be possible.

I can't override this behavior by registering my own IUserStore<> that inherit from AspNetCore.Identity.Mongo.Stores.UserStore. It is not possible since EnsureIndex is called in the UserStore constructor and it will always be called.

I have considered adding another index but MongoDb is complaining that another one already exists for the same column.

The possibilities I see here is to either

• Change EnsureIndex to create unique Index (this could be a config option)
• Provide an empty constructor on AspNetCore.Identity.Mongo.Stores.UserStore so we can provide our own implementation that inherit from it and initialize it the way we want.

Let me know if there are a way to do this

Thanks