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prisma-extension-pagination
Advanced tools
Prisma Client extension for pagination.
npm i prisma-extension-pagination
import { PrismaClient } from "@prisma/client";
import { pagination } from "prisma-extension-pagination";
const prisma = new PrismaClient().$extends(pagination());
import { PrismaClient } from "@prisma/client";
import { paginate } from "prisma-extension-pagination";
const prisma = new PrismaClient().$extends({
model: {
user: {
paginate,
},
},
});
import { PrismaClient } from "@prisma/client";
import { pagination } from "prisma-extension-pagination";
const prisma = new PrismaClient().$extends(
pagination({
pages: {
limit: 10, // set default limit to 10
includePageCount: true, // include counters by default
},
cursor: {
limit: 10, // set default limit to 10
// set default cursor serialization/deserialization
getCursor(user: UserType) {
// ...
},
parseCursor(cursor) {
// ...
},
},
})
);
When using the extension on some models, you need to use createPaginator
function to set the default values:
import { PrismaClient } from "@prisma/client";
import { createPaginator } from "prisma-extension-pagination";
const paginate = createPaginator({
// available settings are the same as above
pages: {
// ...
},
cursor: {
//...
},
});
// You can create many paginators with different settings.
// They can be reused for different models.
const prisma = new PrismaClient().$extends({
model: {
user: {
paginate,
},
post: {
paginate,
},
},
});
Page number pagination uses limit
to select a limited range and page
to load a specific page of results.
const [users, meta] = await prisma.user
.paginate({
select: {
id: true,
}
})
.withPages({
limit: 10,
});
// meta contains the following
{
currentPage: 1,
isFirstPage: true,
isLastPage: false,
previousPage: null,
nextPage: 2,
}
const [users, meta] = await prisma.user
.paginate()
.withPages({
limit: 10,
page: 2,
});
// meta contains the following
{
currentPage: 2,
isFirstPage: false,
isLastPage: false,
previousPage: 1,
nextPage: 3,
}
const [users, meta] = await prisma.user
.paginate()
.withPages({
limit: 10,
page: 2,
includePageCount: true,
});
// meta contains the following
{
currentPage: 2,
isFirstPage: false,
isLastPage: false,
previousPage: 1,
nextPage: 3,
pageCount: 10, // the number of pages is calculated
totalCount: 100, // the total number of results is calculated
}
Cursor-based pagination uses limit
to select a limited range
and before
or after
to return a set of results before or after a given cursor.
const [users, meta] = await prisma.user
.paginate({
select: {
id: true,
}
})
.withCursor({
limit: 10,
});
// meta contains the following
{
hasPreviousPage: false,
hasNextPage: true,
startCursor: "1",
endCursor: "10"
}
const [users, meta] = await prisma.user
.paginate()
.withCursor({
limit: 10,
after: "10"
});
// meta contains the following
{
hasPreviousPage: true,
hasNextPage: true,
startCursor: "11",
endCursor: "20"
}
const [users, meta] = await prisma.user
.paginate()
.withCursor({
limit: 10,
before: "11"
});
// meta contains the following
{
hasPreviousPage: false,
hasNextPage: true,
startCursor: "1",
endCursor: "10"
}
const getCustomCursor = (postId: number, userId: number) =>
[postId, userId].join(":");
const parseCustomCursor = (cursor: string) =>
cursor.split(":");
const [results, meta] = await prisma.postOnUser
.paginate({
select: {
postId: true,
userId: true,
},
})
.withCursor({
limit: 10,
after: getCustomCursor(1, 1), // "1:1"
// custom cursor serialization
getCursor({ postId, userId }) {
return getCustomCursor(postId, userId)
},
// custom cursor deserialization
parseCursor(cursor) {
const [postId, userId] = parseCustomCursor(cursor);
return {
userId_postId: {
postId: parseInt(postId),
userId: parseInt(userId),
},
};
},
});
// meta contains the following
{
hasPreviousPage: false,
hasNextPage: true,
startCursor: "1:2",
endCursor: "1:11"
}
Sometimes it's useful to return all results, if you need to do that, you can pass limit: null
.
This project is licensed under the terms of the MIT license.
FAQs
Prisma Client extension for pagination
We found that prisma-extension-pagination demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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