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MountSQLiMountSQLI

RPC

toTrpc(router) turns your routes into tRPC-style procedures. Same QueryPlan source, typed end to end.

Generate procedures

Section titled “Generate procedures”
import { toTrpc } from "@mountsqli/api";


const procedures = toTrpc(router);
// → [{ path, resolver }] ready to mount on a tRPC router

How it fits

Section titled “How it fits”
graph TD
  R[Router + QueryPlans] --> REST[createRestHandler]
  R --> OAS[toOpenApi]
  R --> RPC[toTrpc]

One router, three transports. The plan is the contract; REST, OpenAPI, and RPC are different surfaces over it.

Real-world example

Section titled “Real-world example”
const router = createRouter();
router.get("/users", { plan: db.from(users)._plan });


export const appRouter = trpc.router({
  users: trpc.procedure.query(() => {
    const [proc] = toTrpc(router).filter((p) => p.path === "users");
    return proc.resolver(/* ctx */);
  }),
});

Best practices

Section titled “Best practices”
  • Keep one Router as the API source of truth.
  • Reuse the same plans across REST and RPC for consistency.
  • Validate inputs with ValidationShape before resolving.

Common mistakes

Section titled “Common mistakes”
  • Maintaining separate REST and RPC route definitions (drift) — derive both from one router.
Section titled “Related”