How would one define a function which interacts wi...

# arrow

[Johan Basson]

How would one define a function which interacts with a database?

fun findUserByUsername(username: String, con: Connection): IO<Either<Exception, Option<User>> {
	...
}

Or would you combine IO & Reader as in (Not sure about syntax)

fun findUserByUsername(username: String): Reader<Context, IO<Either<Exception, Option<User>>> {
	...
}

Or would you keep it simple like this:

fun findUserByUsername(username: String, con: Connection): Either<Exception, Option<User>> {
	...
}

Which one is the "best"?