Julia sparse matrix with random 1's

So I have a size N in julia and I need an NxN sparse matrix with N ones in it, in random places. What would be the best way to go about this?

At first I thought about randomly generating indexes and then setting those numbers to 1 in a sparse matrix but I recently found the sprand functions however I don't understand how to use them correctly or apply them to my problem. I tried using it with my limited understanding and it keeps generating error messages. Help is of course always greatly appreciated :)