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refactor(core-trpc): make the tRPC context router-agnostic

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Ports the type-safety/ergonomics half of the upstream cycle-break: core-trpc
no longer imports AppRouter from @repo/core-api (an illegal
core -> core-composition boundary edge). The runtime context and both
providers are now AnyTRPCRouter-generic; consumers inject their router type
via useTRPC<TRouter>().

The clean-slate tree is already cycle-free (no kept feature consumes
core-trpc), so this is purely the architecture/boundary improvement. The
per-feature app-slice types the upstream commit added for the demo features
are intentionally skipped: no kept feature consumes useTRPC yet.

Also covers the router-agnostic useTRPC delegation: the refactor turned
useTRPC into a wrapper function whose body was unexercised, dropping
client.ts below the coverage floor — client.test.ts stubs the context
factory and asserts the delegation, restoring client.ts to 100%.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK
This commit is contained in:
Danijel Martinek
2026-07-13 06:09:10 +02:00
parent 361b28da99
commit c2841cf352
7 changed files with 42 additions and 12 deletions
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18
packages/core-trpc/src/client.ts
View File

@@ -1,6 +1,20 @@
"use client";
import { createTRPCContext } from "@trpc/tanstack-react-query";
import type { AppRouter } from "@repo/core-api";
import type { TRPCOptionsProxy } from "@trpc/tanstack-react-query";
import type { AnyTRPCRouter } from "@trpc/server";
export const { TRPCProvider, useTRPC } = createTRPCContext<AppRouter>();
// core-trpc must not depend on @repo/core-api (core → core-composition is an
// illegal boundary edge and creates a package cycle through the features).
// The runtime context is router-agnostic; consumers inject their router type
// as a generic: features pass their app-slice type (e.g. `BlogAppSlice`),
// apps may pass the full AppRouter.
const context = createTRPCContext<AnyTRPCRouter>();
export const TRPCProvider = context.TRPCProvider;
export function useTRPC<
TRouter extends AnyTRPCRouter = AnyTRPCRouter,
>(): TRPCOptionsProxy<TRouter> {
return context.useTRPC() as unknown as TRPCOptionsProxy<TRouter>;
}