zrilman•3y ago

Input is too big for a single dispatch

I decided to try tRPC for my Crypto analytics dashboard. However, I'm having a hard time passing the time series data between the client & the server. First I received an HTTP error Request header too large I was able to fix this by setting maxURLLength However, now I receive another error "Input is too big for a single dispatch" So my question does tRPC even support such queries, where you send long arrays of data as inputs?

6 Replies

Nick•3y ago

Is this is a query? Might be worth trying a mutation instead, tRPC currently uses GET for queries and that has limitations

zrilmanOP•3y ago

Yes. It's a query. I've ended up with switching to mutation 😄

Unknown User•3y ago

Message Not Public

Nick•3y ago

Yeah this is a limitation right now AFAIK, there is chatter about making queries more flexible, like using a POST under the hood, just not sure where the core team are with that. In general though, sending a large amount of data by a query is probably a code-smell. I am aware there are some legit use cases though

Unknown User•3y ago

Message Not Public

isaac_way•3y ago

It's pretty easy to just wrap a mutation call in a react query useQuery hook, probably the simplest workaround I think:

import {useQuery} from '@tanstack/react-query';

function usePostsQuery() {
  const client = api.useContext().client;
  return useQuery({queryFn: async ()=>{
    return await client.posts.getPosts.mutate();
  }})
}

import {useQuery} from '@tanstack/react-query';

function usePostsQuery() {
  const client = api.useContext().client;
  return useQuery({queryFn: async ()=>{
    return await client.posts.getPosts.mutate();
  }})
}

Input is too big for a single dispatch

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