---
title: "TanStack Start"
description: "Use requestMiddleware() for server routes and mount clientLogHandlers.POST for browser ingestion."
canonical_url: "https://www.blyp.dev/docs/integrations/tanstack-start"
markdown_url: "https://www.blyp.dev/docs/integrations/tanstack-start.md"
last_updated: "2018-10-20"
x_farming_labs_generated_preamble: true
---

# TanStack Start
URL: /docs/integrations/tanstack-start
LLM index: /llms.txt
Description: Use requestMiddleware() for server routes and mount clientLogHandlers.POST for browser ingestion.

# TanStack Start

Import from `@blyp/core/tanstack-start`.

```ts
import { createLogger } from "@blyp/core/tanstack-start";

const tanstackLogger = createLogger({
  level: "info",
});

export const requestMiddleware = tanstackLogger.requestMiddleware;
```

Inside `requestMiddleware`, Blyp injects `blypLog` into the middleware context passed to `next({ context })`.

```ts
const response = await tanstackLogger.requestMiddleware({
  request,
  context: {},
  next: async (options) => {
    options?.context?.blypLog?.info("tanstack-route");
    return new Response("ok");
  },
});
```

## Client ingestion route

```ts
export const POST = tanstackLogger.clientLogHandlers.POST;
```

## What auto-logged requests look like

With automatic request logging enabled, Blyp emits terminal output like:

```text
[INFO]  GET  /health        200  2ms
[INFO]  POST /checkout      200  143ms
[INFO]  GET  /users/42      404  8ms
[ERROR] POST /payments      500  1203ms
```

Fields included automatically: method, path, status code, and duration.

**In production (NDJSON):**

```json
{"level":"info","time":1710000000000,"msg":"GET /health","type":"http_request","method":"GET","url":"/health","statusCode":200,"responseTime":2}
{"level":"info","time":1710000000001,"msg":"POST /checkout","type":"http_request","method":"POST","url":"/checkout","statusCode":200,"responseTime":143}
```

## Relevant types

```ts
import type {
  TanStackStartLoggerConfig,
  TanStackStartLoggerFactory,
  TanStackStartMiddlewareContext,
} from "@blyp/core/tanstack-start";
```

## Sitemap

See the full [sitemap](/sitemap.md) for all pages.
Docs-scoped sitemap: [/docs/sitemap.md](/docs/sitemap.md).
Well-known sitemap: [/.well-known/sitemap.md](/.well-known/sitemap.md).