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•Created by Jokcy on 10/28/2023 in #❓-help

Is there any easy way to create a Type for a trpc router

I want to publish a set of trpc api client to npm, which will be used by my customer directly. But if I use typeof MyRouter to infer the Router type, my bundler (which is tsup) will bundle db schema types into the d.ts file. If I want my customer to gain the typesafe ability I have to make my db schema info public. Is there any way to define a Router type without typeof MyRouter type infer? So that I can expose limited info to public.

3 replies

TtRPC

•Created by Jokcy on 2/27/2023 in #❓-help

Cache not working for `useQuery`

I have a query like this:

const { data: article, isFetching } = api.public.getArticle.useQuery({
        id: targetId,
    });

const { data: article, isFetching } = api.public.getArticle.useQuery({
        id: targetId,
    });

which targetId is a dynamic value. When I change targetId from a to b then switch back from b to a, the useQuery hook still send a new request for a instead of using cache. Any idea how to make the cache work?

6 replies

TtRPC

•Created by Jokcy on 1/22/2023 in #❓-help

Demo code `trpc.infinitePosts.add` on infinitedQuery not working

Doc here: https://trpc.io/docs/useInfiniteQuery#getinfinitedata, I created an my query like this:

infinitePosts: protectedProcedure
        .input(
            z.object({
                limit: z.number().min(1).max(100).nullish(),
                cursor: z.string().nullish(), // <-- "cursor" needs to exist, but can be any type
            })
        )
        .query(async ({ ctx, input }) => {
            const limit = input.limit ?? 20;
            const { cursor } = input;
            const items = await ctx.prisma.post.findMany({
                take: limit + 1, // get an extra item at the end which we'll use as next cursor
                cursor: cursor ? { id: cursor } : undefined,
                orderBy: {
                    updatedAt: 'asc',
                },
            });
            let nextCursor: typeof cursor | undefined = undefined;
            if (items.length > limit) {
                const nextItem = items.pop();
                nextCursor = nextItem!.id;
            }
            return {
                items,
                nextCursor,
            };
        }),

infinitePosts: protectedProcedure
        .input(
            z.object({
                limit: z.number().min(1).max(100).nullish(),
                cursor: z.string().nullish(), // <-- "cursor" needs to exist, but can be any type
            })
        )
        .query(async ({ ctx, input }) => {
            const limit = input.limit ?? 20;
            const { cursor } = input;
            const items = await ctx.prisma.post.findMany({
                take: limit + 1, // get an extra item at the end which we'll use as next cursor
                cursor: cursor ? { id: cursor } : undefined,
                orderBy: {
                    updatedAt: 'asc',
                },
            });
            let nextCursor: typeof cursor | undefined = undefined;
            if (items.length > limit) {
                const nextItem = items.pop();
                nextCursor = nextItem!.id;
            }
            return {
                items,
                nextCursor,
            };
        }),

Then on my client: api.post.infinitePosts, but there is no .add or .delete on it, am I miss something or is there any detail doc?

1 replies

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