Theo's Typesafe Cult•14mo ago

tRPC Context object empty

Hey guys, I wanted to try to implement context using tRPC. I followed the docs line by line but I keep getting an empty object when I return the ctx in my procedure. Here is my code: context.ts

export async function createContext(opts: CreateNextContextOptions) {
  
  return {
    token: "secret-hash",
  };
}

export type Context = inferAsyncReturnType<typeof createContext>;

export async function createContext(opts: CreateNextContextOptions) {
  
  return {
    token: "secret-hash",
  };
}

export type Context = inferAsyncReturnType<typeof createContext>;

` trpc.ts

const t = initTRPC.context<Context>().create();

const isAuthed = t.middleware(async ({ next, ctx }) => {
  if (!ctx) {
    throw new TRPCError({
      code: "UNAUTHORIZED",
    });
  }
  return next({
    ctx: {
      session: ctx,
    },
  });
});
export const protectedProcedure = t.procedure.use(isAuthed);

const t = initTRPC.context<Context>().create();

const isAuthed = t.middleware(async ({ next, ctx }) => {
  if (!ctx) {
    throw new TRPCError({
      code: "UNAUTHORIZED",
    });
  }
  return next({
    ctx: {
      session: ctx,
    },
  });
});
export const protectedProcedure = t.procedure.use(isAuthed);

router.ts

  print: protectedProcedure
    .input(
      z.object({
        name: z.string(),
      })
    )
    .mutation(async (opts) => {
      return opts.ctx; // {}
    }),

  print: protectedProcedure
    .input(
      z.object({
        name: z.string(),
      })
    )
    .mutation(async (opts) => {
      return opts.ctx; // {}
    }),

I'd appreciate any help I could get

1 Reply

sumatoken•14mo ago

I fixed. I knew the function wasn't actually called anywhere so typescript gave me a hint when I tried to build the project. Here is what I had to do in /api/trpc/[trpc].ts:

export default trpcNext.createNextApiHandler({
  router: appRouter,
  createContext: createContext, // calling the ctx function
});

export default trpcNext.createNextApiHandler({
  router: appRouter,
  createContext: createContext, // calling the ctx function
});

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tRPC Context object empty