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DIAdiscord.js - Imagine an app TtRPC TTCTheo's Typesafe Cult

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TtRPC

•Created by rustclan on 2/17/2024 in #❓-help

What is a useSuspenseQuery?

okay thank you

3 replies

TtRPC

•Created by rustclan on 9/22/2023 in #❓-help

return type of a query endpoint

Sorry, I just saw these messages. At the moment I mainly use refetch to update the response once something has been updated/deleted. I should probably just return the updated document in the response to the mutation, or in the case of a delete just remove it from the original data list. Would be more efficient for sure.

8 replies

TtRPC

•Created by rustclan on 9/22/2023 in #❓-help

return type of a query endpoint

Thank you!

8 replies

TTCTheo's Typesafe Cult

•Created by rustclan on 9/3/2023 in #questions

TRPC error handling

Thank you 🙂

4 replies

TtRPC

•Created by rustclan on 4/30/2023 in #❓-help

TRPC ratelimiting endpoints

Hmm, yes okay. I see what you are saying. This depends on vercel runs nextjs api endpoints, im not entirely sure. For now, this is working just fine. But I should look into this just encase. Thank you very much for the help 🙂

20 replies

TtRPC

•Created by rustclan on 4/30/2023 in #❓-help

TRPC ratelimiting endpoints

But just so I understand, why does this solution not scale? You say I may have to deal with the promise in redis? Why is using memo not okay?

20 replies

TtRPC

•Created by rustclan on 4/30/2023 in #❓-help

TRPC ratelimiting endpoints

@alex / KATT hi, I had time to do this now. Thank you SO much! This issue was slowing my site down alot, and now it is fast once again!

20 replies

TtRPC

•Created by rustclan on 4/30/2023 in #❓-help

TRPC ratelimiting endpoints

Thank you very much, when I get some time I shall look at this.

20 replies

TtRPC

•Created by rustclan on 4/30/2023 in #❓-help

TRPC ratelimiting endpoints

Hi, thank you for the response. But I'm not sure I follow. Since this is hosted on serverless infrastructure (vercel), I don't think this is possible to use a in memory cache to stop this from happening? I may be misunderstanding your solution though.

20 replies

TtRPC

•Created by rustclan on 4/30/2023 in #❓-help

TRPC ratelimiting endpoints

bump

20 replies

TTCTheo's Typesafe Cult

•Created by rustclan on 4/30/2023 in #questions

TRPC ratelimiting endpoints (race conditions)

bump

3 replies

TTCTheo's Typesafe Cult

•Created by rustclan on 4/30/2023 in #questions

TRPC ratelimiting endpoints (race conditions)

function which needs to be ratelimited (using the redis cache)

export const getUserGuilds = async (
  session: Session
): Promise<CachedUserGuild[] | null> => {
  if (!session.user.accessToken || !session.user.id) return null;

  const webUser = await cache.webUsers.get(session.user.id);
  if (webUser) return webUser.guilds;

  const response = await fetch(discord...)
  const guilds = await response.json();
  if (!response.ok || guilds.length <= 0) return null;
  
  // add guilds to cache
  await cache.webUsers.create(session.user.id, guilds);

  return guilds;
};

export const getUserGuilds = async (
  session: Session
): Promise<CachedUserGuild[] | null> => {
  if (!session.user.accessToken || !session.user.id) return null;

  const webUser = await cache.webUsers.get(session.user.id);
  if (webUser) return webUser.guilds;

  const response = await fetch(discord...)
  const guilds = await response.json();
  if (!response.ok || guilds.length <= 0) return null;
  
  // add guilds to cache
  await cache.webUsers.create(session.user.id, guilds);

  return guilds;
};

A big band aid fix would be to just add an artificial wait:

    if (!guilds) {
      await new Promise((resolve) => setTimeout(resolve, 1000));
      webUser = await cache.webUsers.get(ctx.session.user.id);
      guilds = webUser?.guilds;
      if (!guilds) {
        throw new TRPCError({ code: 'UNAUTHORIZED' });
      }
    }

    if (!guilds) {
      await new Promise((resolve) => setTimeout(resolve, 1000));
      webUser = await cache.webUsers.get(ctx.session.user.id);
      guilds = webUser?.guilds;
      if (!guilds) {
        throw new TRPCError({ code: 'UNAUTHORIZED' });
      }
    }

But obviously this is not very elegant..

3 replies

TtRPC

•Created by rustclan on 4/30/2023 in #❓-help

TRPC ratelimiting endpoints

function which needs to be ratelimited (using the redis cache)

export const getUserGuilds = async (
  session: Session
): Promise<CachedUserGuild[] | null> => {
  if (!session.user.accessToken || !session.user.id) return null;

  const webUser = await cache.webUsers.get(session.user.id);
  if (webUser) return webUser.guilds;

  const response = await fetch(discord...)
  const guilds = await response.json();
  if (!response.ok || guilds.length <= 0) return null;
  
  // add guilds to cache
  await cache.webUsers.create(session.user.id, guilds);

  return guilds;
};

export const getUserGuilds = async (
  session: Session
): Promise<CachedUserGuild[] | null> => {
  if (!session.user.accessToken || !session.user.id) return null;

  const webUser = await cache.webUsers.get(session.user.id);
  if (webUser) return webUser.guilds;

  const response = await fetch(discord...)
  const guilds = await response.json();
  if (!response.ok || guilds.length <= 0) return null;
  
  // add guilds to cache
  await cache.webUsers.create(session.user.id, guilds);

  return guilds;
};

A big band aid fix would be to just add an artificial wait:

    if (!guilds) {
      await new Promise((resolve) => setTimeout(resolve, 1000));
      webUser = await cache.webUsers.get(ctx.session.user.id);
      guilds = webUser?.guilds;
      if (!guilds) {
        throw new TRPCError({ code: 'UNAUTHORIZED' });
      }
    }

    if (!guilds) {
      await new Promise((resolve) => setTimeout(resolve, 1000));
      webUser = await cache.webUsers.get(ctx.session.user.id);
      guilds = webUser?.guilds;
      if (!guilds) {
        throw new TRPCError({ code: 'UNAUTHORIZED' });
      }
    }

But obviously this is not very elegant..

20 replies

TtRPC

•Created by rustclan on 4/17/2023 in #❓-help

trpc auto refreshes page when I lose focus

Hi. Thank you 🙂 I have found refetchOnWindowFocus which is what I am looking for. Here is my fix for any future people.

export const api = createTRPCNext<AppRouter>({
  config() {
    return {
      transformer: superjson,
      queryClientConfig: {
        defaultOptions: {
          queries: {
            refetchOnWindowFocus: false,
          },
        },
      },

export const api = createTRPCNext<AppRouter>({
  config() {
    return {
      transformer: superjson,
      queryClientConfig: {
        defaultOptions: {
          queries: {
            refetchOnWindowFocus: false,
          },
        },
      },

https://tanstack.com/query/v4/docs/react/guides/window-focus-refetching

5 replies

TtRPC

•Created by rustclan on 4/15/2023 in #❓-help

trpc rate limiting

A big band aid fix would be to just add an artificial wait:

    if (!guilds) {
      await new Promise((resolve) => setTimeout(resolve, 1000));
      webUser = await cache.webUsers.get(ctx.session.user.id);
      guilds = webUser?.guilds;
      if (!guilds) {
        throw new TRPCError({ code: 'UNAUTHORIZED' });
      }
    }

    if (!guilds) {
      await new Promise((resolve) => setTimeout(resolve, 1000));
      webUser = await cache.webUsers.get(ctx.session.user.id);
      guilds = webUser?.guilds;
      if (!guilds) {
        throw new TRPCError({ code: 'UNAUTHORIZED' });
      }
    }