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query-profiler

Hono

Hono 4 on Node, served by @hono/node-server 2, tested in CI. Your server’s code does not change: follow Setup to install the package, profile the Prisma client and add the preload. On Bun, Deno or Cloudflare Workers there is no Node server to profile: not supported.

The dev command

Section titled “The dev command”
{
  "scripts": {
    "dev": "tsx watch --import query-profiler/register src/index.ts",
    "start": "node dist/index.js"
  }
}

In plain JavaScript, node --watch --import query-profiler/register src/index.js. Other watchers are in Setup.

CORS

Section titled “CORS”

With Hono’s cors() middleware, a page on another origin can read X-Debug-Token: the preload exposes it. If you set exposeHeaders, your list replaces it, so add the token there:

app.use(cors({ origin: "http://localhost:5173", exposeHeaders: ["X-Debug-Token"] }));

In production no response carries it, so the extra name does nothing.