# Zipper

Deposit/withdraw config and related Zipper reads.

`client.zipper` exposes route configuration and live zipped-asset supply updates.

```python
config = await client.zipper.get_deposit_withdraw_config()
client.catalogs.hydrate_zipper_config(config)
```

Client construction starts catalog hydration when `hydrate_catalogs=True`. Await `wait_for_catalogs()` returns an error when hydration fails (HTTP/transport error, malformed config, or invalid scales). Call `hydrate_zipper_config` directly for an explicit refresh.

```python
sub = await client.zipper.subscribe_zipped_asset_supply(patch_catalog=True)
async with sub:
    async for batch in sub:
        for update in batch.updates:
            print(update.zipped_asset_id, update.supply)
        break
```

With `patch_catalog=True` (default), supply events update the shared catalog before being delivered. Disable it only if your application owns reconciliation. The stream is public.

Route configuration is not a fee quote and can change. Quote immediately before an on-chain withdraw and enforce your own maximum fee/slippage.

Related: [Catalog](https://testnet.polyester.com/docs/sdk/python/reference/catalog), [Funds & Transfers](https://testnet.polyester.com/docs/developer-docs/funds-transfers/overview).