Use Infinite Query

Use the useInfiniteQuery hook for endpoints that return paginated data.

const { data, hasNextPage, fetchNextPage } = client.posts.useInfiniteQuery({
    input: {
        take: 10,
    },
    getNextPageParam: (lastPage) => {
        if (lastPage.length > 0) {
            return lastPage[lastPage.length - 1].id + 1;
        }
 
        return 0;
    },
    initialPageParam: 0,
});

The useInfiniteQuery is only exposed if your endpoint takes cursor as an input.

import { createAetheris, router } from "@aetheris/server";
 
import { z } from "zod";
 
export const aether = createAetheris();
 
export const app = router({
    posts: aether.handler({
        input: z.object({
            cursor: z.number(),
            take: z.number(),
        }),
        resolve: async ({ input }) => {
            const generateFakePost = (index: number) => ({
                id: index,
                title: `Post title ${index}`,
                content: `This is the content of post ${index}.`,
                author: `Author ${index}`,
                date: new Date().toISOString(),
            });
 
            return Array.from({ length: input.take }, (_, i) => generateFakePost(input.cursor + i));
        },
    }),
});
 
export type App = typeof app;

useMutation Next