Files
STCourses/packages/feature-learner/src/server/transpile.ts
T

28 lines
896 B
TypeScript

import type { Feature } from "@stc/contracts";
import { badRequest, body, json } from "./http";
const MAX = 200_000;
const ts = new Bun.Transpiler({ loader: "ts", target: "browser" });
/** Type-strips TypeScript for the in-browser runner (the worker itself runs plain JavaScript). */
export function transpileTs(code: string): string {
return ts.transformSync(code);
}
export function transpileRoutes(): Feature["routes"] {
return {
"/api/learner/transpile": {
POST: async (req) => {
const b = await body<{ code?: string }>(req);
if (!b || typeof b.code !== "string") return badRequest("code is required");
if (b.code.length > MAX) return badRequest("code is too long");
try {
return json({ code: transpileTs(b.code) });
} catch (e) {
return json({ error: (e as Error).message }, 422);
}
},
},
};
}