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•Created by tsuki on 3/12/2024 in #questions

Properly setting a minimum delay when fetching data from external api

hi all. i'm trying to use the scryfall api, and they've got a requirement to allow at least 50-100ms of delay between each request to their api. how would i go about properly implementing that? i tried throwing the "whole" thing in a setTimeout() but that doesn't work as i'd expect, as it doesn't actually wait out the timeout and just returns undefined instantly.

import { z } from "zod";

import { createTRPCRouter, publicProcedure } from "~/server/api/trpc";

export const scryfallRouter = createTRPCRouter({
  get: publicProcedure
    .input(z.object({ name: z.string() }))
    .query(async ({ input }) => {
      setTimeout(async () => {
        console.log("required delay");

        const res = await fetch(
          `https://api.scryfall.com/cards/named?fuzzy=${input.name}`,
        );

        if (!res.ok) {
          throw new Error("Failed to fetch card");
        }

        const data = (await res.json()) as unknown;

        console.log(data);
        return data;
      }, 150);
    }),
});

import { z } from "zod";

import { createTRPCRouter, publicProcedure } from "~/server/api/trpc";

export const scryfallRouter = createTRPCRouter({
  get: publicProcedure
    .input(z.object({ name: z.string() }))
    .query(async ({ input }) => {
      setTimeout(async () => {
        console.log("required delay");

        const res = await fetch(
          `https://api.scryfall.com/cards/named?fuzzy=${input.name}`,
        );

        if (!res.ok) {
          throw new Error("Failed to fetch card");
        }

        const data = (await res.json()) as unknown;

        console.log(data);
        return data;
      }, 150);
    }),
});

i realize the placeholder post router, has something similar but i'm worried it won't actually delay the fetch call like required. any insights/comments are greatly appreciated :JinxHeart:

4 replies

TTCTheo's Typesafe Cult

•Created by tsuki on 11/2/2023 in #questions

onSuccess, onError and onSettled deprecated next major version?

16 replies

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