---
title: "Polling recent changes (Webhook backup)"
description: "In case you need sync your local data after webhook downtime you can simply request recently changes document and pair them with your local records:"
---

> Documentation Index
> Fetch the complete documentation index at: /api-docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Polling recent changes (Webhook backup)

In case you need sync your local data after webhook downtime you can simply request recently changes document and pair them with your local records:

- Request to List of documents endpoint can contain param modified_since (datetime in iso8601 format)

- Each API response from datamolino contains custom header Request-Timestamp, which indicates time, when the request was accepted by Datamolino application server (again in iso8601 format). You can use it if you want.

- You should be able to "calculate" the latest update from Datamolino timestamp which will be used as modified_since parameter value

- The timestamp does not need to be accurate you just need sure you catch bigger window than the webhook endpoint downtime

Source: /api-docs/guides/polling-recent-changes-webhook-backup/index.md