Theo's Typesafe Cult•14mo ago

Calling trpc mutations on client components with app router

Hello, looking for some help learning app router, any advice greatly appreciated I'm getting an error trying to call a mutation from a client component - my aim is to collect some values with a form in a shadcn dialog (so useState required) Setting up the mutations for create and edit:

import { api } from "~/trpc/react";
export function EpisodeForm({ id }: EpisodeFormProps) {
  const [open, setOpen] = useState(false);

  const utils = api.useUtils();
  const createEpisode = api.episode.create.useMutation({
    onSuccess: () => utils.episode.invalidate(),
  });
  const updateEpisode = api.episode.update.useMutation({
    onSuccess: () => utils.episode.invalidate(),
  });
  ...

import { api } from "~/trpc/react";
export function EpisodeForm({ id }: EpisodeFormProps) {
  const [open, setOpen] = useState(false);

  const utils = api.useUtils();
  const createEpisode = api.episode.create.useMutation({
    onSuccess: () => utils.episode.invalidate(),
  });
  const updateEpisode = api.episode.update.useMutation({
    onSuccess: () => utils.episode.invalidate(),
  });
  ...

Mutating onSubmit function:

async function onSubmit() {
  await form.trigger();
  const errors = Object.keys(form.formState.errors);
  if (errors.length > 0) {
    throw new Error("Form has errors");
  }
  if (!!id) {
    updateEpisode.mutate({
      id,
      ...form.getValues(),
    });
  } else {
    createEpisode.mutate({
      ...form.getValues(),
    });
  }
  form.reset();
}

async function onSubmit() {
  await form.trigger();
  const errors = Object.keys(form.formState.errors);
  if (errors.length > 0) {
    throw new Error("Form has errors");
  }
  if (!!id) {
    updateEpisode.mutate({
      id,
      ...form.getValues(),
    });
  } else {
    createEpisode.mutate({
      ...form.getValues(),
    });
  }
  form.reset();
}

Specific error is in the screenshot, I assume I'm just doing the client component trpc pattern wrong, but not really sure what a correct call would look like

Solution:

https://github.com/hyhydev/Modulation/compare/main...varugasu:Modulation:patch-1

GitHub

Comparing hyhydev:main...varugasu:patch-1 · hyhydev/Modulation

Modulation Podcast Website. Contribute to hyhydev/Modulation development by creating an account on GitHub.

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11 Replies

hyhyOP•14mo ago

create: hyhyProtectedProcedure
  .input(
    z.object({
      name: z.string(),
    }),
  )
  .mutation(async ({ ctx, input }) => {
    await ctx.db.insert(episodes).values({
      name: input.name,
    });
  }),
update: hyhyProtectedProcedure
  .input(
    z.object({
      id: z.number(),
      name: z.string(),
    }),
  )
  .mutation(async ({ ctx, input }) => {
    await ctx.db
      .update(episodes)
      .set({
        name: input.name,
      })
      .where(eq(episodes.id, input.id));
  }),

create: hyhyProtectedProcedure
  .input(
    z.object({
      name: z.string(),
    }),
  )
  .mutation(async ({ ctx, input }) => {
    await ctx.db.insert(episodes).values({
      name: input.name,
    });
  }),
update: hyhyProtectedProcedure
  .input(
    z.object({
      id: z.number(),
      name: z.string(),
    }),
  )
  .mutation(async ({ ctx, input }) => {
    await ctx.db
      .update(episodes)
      .set({
        name: input.name,
      })
      .where(eq(episodes.id, input.id));
  }),

simple mutation in case it's helpful at all

Vargas•14mo ago

Probably an error with your ~/trpc/react.tsx. Do you mind sharing it, please? We need to check TRPCReactProvider And just to make sure, EpisodeForm file contains "use client"?

hyhyOP•14mo ago

it does, yeah

"use client";

import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
import { loggerLink, unstable_httpBatchStreamLink } from "@trpc/client";
import { createTRPCReact } from "@trpc/react-query";
import { useState } from "react";

import { type AppRouter } from "~/server/api/root";
import { getUrl, transformer } from "./shared";

export const api = createTRPCReact<AppRouter>();

export function TRPCReactProvider(props: {
  children: React.ReactNode;
  cookies: string;
}) {
  const [queryClient] = useState(() => new QueryClient());

  const [trpcClient] = useState(() =>
    api.createClient({
      transformer,
      links: [
        loggerLink({
          enabled: (op) =>
            process.env.NODE_ENV === "development" ||
            (op.direction === "down" && op.result instanceof Error),
        }),
        unstable_httpBatchStreamLink({
          url: getUrl(),
          headers() {
            return {
              cookie: props.cookies,
              "x-trpc-source": "react",
            };
          },
        }),
      ],
    })
  );

  return (
    <QueryClientProvider client={queryClient}>
      <api.Provider client={trpcClient} queryClient={queryClient}>
        {props.children}
      </api.Provider>
    </QueryClientProvider>
  );
}

"use client";

import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
import { loggerLink, unstable_httpBatchStreamLink } from "@trpc/client";
import { createTRPCReact } from "@trpc/react-query";
import { useState } from "react";

import { type AppRouter } from "~/server/api/root";
import { getUrl, transformer } from "./shared";

export const api = createTRPCReact<AppRouter>();

export function TRPCReactProvider(props: {
  children: React.ReactNode;
  cookies: string;
}) {
  const [queryClient] = useState(() => new QueryClient());

  const [trpcClient] = useState(() =>
    api.createClient({
      transformer,
      links: [
        loggerLink({
          enabled: (op) =>
            process.env.NODE_ENV === "development" ||
            (op.direction === "down" && op.result instanceof Error),
        }),
        unstable_httpBatchStreamLink({
          url: getUrl(),
          headers() {
            return {
              cookie: props.cookies,
              "x-trpc-source": "react",
            };
          },
        }),
      ],
    })
  );

  return (
    <QueryClientProvider client={queryClient}>
      <api.Provider client={trpcClient} queryClient={queryClient}>
        {props.children}
      </api.Provider>
    </QueryClientProvider>
  );
}

as far as I can tell it's unmodified from the create-t3-app setup thanks for the help

Vargas•14mo ago

Indeed. Same as create-t3-app. Can you share the repository? It would be easier to troubleshooting it

hyhyOP•14mo ago

Will do, I'll just do a bit of GitHub wrangling to get it public @Vargas i've put it up at https://github.com/hyhydev/Modulation/blob/main/src/app/_components/episode_form/episode_form.tsx, it's a bit messy as was porting over some page router code from a different project here's the page router example from the other project, clicking the + icon in the top header opens this pop up

Vargas•14mo ago

Just let me setup locally here

hyhyOP•14mo ago

no worries, let me know if you need a hand no idea if the episode card loader will work with no data so might need to comment it out in the main app router page

Vargas•14mo ago

Just found the issue In src/app/layout.tsx, Header must be inside the TRPCReactProvider

Solution

Vargas•14mo ago

https://github.com/hyhydev/Modulation/compare/main...varugasu:Modulation:patch-1

GitHub

Comparing hyhydev:main...varugasu:patch-1 · hyhydev/Modulation

Modulation Podcast Website. Contribute to hyhydev/Modulation development by creating an account on GitHub.

hyhyOP•14mo ago

thanks so much, that's a really dumb error of me lol

Vargas•14mo ago

my pleasure

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Calling trpc mutations on client components with app router

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