Retrieve pagination information

Problem

Prisma client currently does not provide the ability to retrieve pagination information about a certain query, which prevents developers from accounting for a result set’s size in a variety of cases (display paginated result lists, optimizing batch size…)

Proposed solution

Add support for a $withPageInfo() to functions returning collections (findMany ,1-n relations, …) returning pagination information alongside the results.

The pagination information could be described as:

type PageInfo<T> = {
  data: T[] // The query result
  hasNext: boolean // Indication that the cursor can move to the next page
  hasPrev: boolean // Indication that the cursor can move to the previous page
}

Example usage:

const samsPostsWithPageInfo: PageInfo<Post> = await prisma.users
  .findOne('sams-id')
  .posts({ first: 50 })
  .$withPageInfo()
console.log(samsPostsWithPageInfo.hasNext, samsPostsWithPageInfo.hasPrev, samsPostsWithPageInfo.data

[old-zoomer]

@pantharshit00 This looks like basic feature that a lot of pagination use cases need. Are there any updates on this?

[Karl-EdwardFPJeanMehu]

I had initially solved this by using only one query, findMany without cursor or take. After grabbing the length of the request, I did the cursor and take and etc myself. Upon discovering $transaction I simply did something like the following instead:

let [ result, count ] = await prisma.$transaction([
   prisma.entity.findMany(query),
   prisma.entity.count({where})
])