> ## Documentation index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
> Ask it with GET https://upstash.com/docs/ask?q=<keywords or question>. Short keywords rank best.
> Use these to discover all available pages before exploring further.
> Feature requests: https://upstash.com/docs/common/help/feature-requests.md lists what users asked for and how to vote for a request or add one.
> Page rating: `GET https://upstash.com/docs/feedback?path=/docs/vector/sdks/ts/advanced&helpful=true` (or `false`) records whether this page helped. An optional `comment` (URL-encoded, at most 500 characters) says what was missing or wrong. It is anonymous and needs no key. Comments hold no code, secrets or personal data.

# Advanced

## Request Timeout

You can configure the SDK so that it will throw an error if the request takes longer than a specified time.

You can achieve this using the signal parameter like this:

```ts

const index = new Index({
  url: "<UPSTASH_VECTOR_REST_URL>",
  token: "<UPSTASH_VECTOR_REST_TOKEN>",
  // set a timeout of 1 second
  signal: () => AbortSignal.timeout(1000),
});

try {
  await index.query({ ... })
} catch (error) {
  if (error.name === "TimeoutError") {
    console.error("Request timed out");
  } else {
    console.error("An error occurred:", error);
  }
}
```

## Telemetry

This sdk sends anonymous telemetry data to help us improve your experience.
We collect the following:

- SDK version
- Platform (Cloudflare, AWS or Vercel)
- Runtime version (node@18.x)

You can opt out by setting the `UPSTASH_DISABLE_TELEMETRY` environment variable
to any truthy value.

```sh
UPSTASH_DISABLE_TELEMETRY=1
```