Paginating with lambdas in kotlin

Question

I am trying to implement pagination with lambdas, but it seems it is not possible without the good-old-do-while cycle:

        val list = mutableListOf<String>()
        var pageIndex = 0
        do {
            val items = paginate<ListResponse>(pageIndex++)
            list += items
        } while (items.isNotEmpty())
        return list

I would like to write it like:

        var pageIndex = 0
        return collectElements {
            paginate<ListResponse>(pageIndex++)
        } until {?it.isNotEmpty() }.flatten() 

Are there any collection utils which would be helpful without having to implement it?

question from:https://stackoverflow.com/questions/66066071/paginating-with-lambdas-in-kotlin

Answer 1

val list = generateSequence(0) { it + 1 }
    .map { paginate<ListResponse>(it) }
    .takeWhile { it.isNotEmpty() }
    .flatten()
    .toList()