您需要上下文www.example.com。https://trpc.io/docs/context#inner-and-outer-context.
在trpc中，您有内部上下文和外部上下文，因此您可以获得nextjs api上下文

// server/trpc.ts

// inner context
interface CreateInnerContextOptions extends Partial<CreateNextContextOptions> {
supabase: SupabaseClient | null;
}

// outer context
export async function createContextInner(opts?: CreateInnerContextOptions) {
    return {
        supabase: opts?.supabase as SupabaseClient<Database> ?? null,
    };
}

export async function createContext(opts: CreateNextContextOptions) {
    const supabase = createPagesServerClient<Database>(opts);
    const contextInner = await createContextInner({ supabase });
    return {
        ...contextInner,
        req: opts.req,
        res: opts.res,
    };
}
export type Context = inferAsyncReturnType<typeof createContextInner>;

//standard trpc declaration and passing context type 
const t = initTRPC.context<Context>().create()

并传递createContext

// [trpc].ts
export default trpcNext.createNextApiHandler({
    router: appRouter,
    createContext
});

然后你可以像这样使用上下文

// [trpc].ts
publicProcedure.input( ...).mutation(async({input, ctx}) => {
const supabase = ctx.supabase
...rest of the code