# Function: createLakebasePoolManager()

```ts
function createLakebasePoolManager(baseConfig?: Partial<LakebasePoolConfig>): LakebasePoolManager;

```

Create a pool manager that maintains per-key Lakebase connection pools.

Each pool is created via `createLakebasePool` with the base config merged with per-pool overrides (e.g. a user's `workspaceClient` and `user`).

A periodic cleanup removes empty Pool objects (where all connections have been closed by pg's built-in `idleTimeoutMillis`) from the internal Map.

## Parameters[​](#parameters "Direct link to Parameters")

| Parameter     | Type                                                                                       |
| ------------- | ------------------------------------------------------------------------------------------ |
| `baseConfig?` | `Partial`<[`LakebasePoolConfig`](./docs/api/appkit/Interface.LakebasePoolConfig.md)> |

## Returns[​](#returns "Direct link to Returns")

[`LakebasePoolManager`](./docs/api/appkit/Interface.LakebasePoolManager.md)

## Example[​](#example "Direct link to Example")

```typescript
const poolManager = createLakebasePoolManager();

// In a route handler:
const userPool = poolManager.getPool(userName, {
  workspaceClient: new WorkspaceClient({ token: userToken, host, authType: "pat" }),
  user: userName,
});
const result = await userPool.query("SELECT * FROM products");

```