Files
lancedb/docs/src/js/interfaces/ClientConfig.md
Jack Ye a898dc81c2 feat: add user_id field to ClientConfig for user identification (#3240)
## Summary

- Add a `user_id` field to `ClientConfig` that allows users to identify
themselves to LanceDB Cloud/Enterprise
- The user_id is sent as the `x-lancedb-user-id` HTTP header in all
requests
- Supports three configuration methods:
  - Direct assignment via `ClientConfig.user_id`
  - Environment variable `LANCEDB_USER_ID`
  - Indirect env var lookup via `LANCEDB_USER_ID_ENV_KEY`

Closes #3230

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Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-04-06 11:20:10 -07:00

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[**@lancedb/lancedb**](../README.md) • **Docs**
***
[@lancedb/lancedb](../globals.md) / ClientConfig
# Interface: ClientConfig
## Properties
### extraHeaders?
```ts
optional extraHeaders: Record<string, string>;
```
***
### idDelimiter?
```ts
optional idDelimiter: string;
```
***
### retryConfig?
```ts
optional retryConfig: RetryConfig;
```
***
### timeoutConfig?
```ts
optional timeoutConfig: TimeoutConfig;
```
***
### tlsConfig?
```ts
optional tlsConfig: TlsConfig;
```
***
### userAgent?
```ts
optional userAgent: string;
```
***
### userId?
```ts
optional userId: string;
```
User identifier for tracking purposes.
This is sent as the `x-lancedb-user-id` header in requests to LanceDB Cloud/Enterprise.
It can be set directly, or via the `LANCEDB_USER_ID` environment variable.
Alternatively, set `LANCEDB_USER_ID_ENV_KEY` to specify another environment
variable that contains the user ID value.