> ## Documentation Index
> Fetch the complete documentation index at: https://nango-tiktok-accounts-update.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Synchronize Data

> Continuously sync data from external APIs.

## When should you use *syncs*?

*Syncs* enable to continuously sync data between your app and external APIs. Use them to:

* keep a list of records in sync between your app and an external system
* take action when records from an external system are created, updated and/or deleted

*Syncs* handle:

* Efficient API requests and data transformations.
* Unified data schemas across diverse external APIs.
* Advanced job orchestration through the dashboard & API.
* Automated rate-limit handling and retries.
* Built-in pagination.
* Data integrity, deduplication, and change detection.
* Comprehensive logging and monitoring.

# Step 0: API authorization

Start by ensuring the external API you intend to work with is authorized. If not, refer to the [Authorize APIs guide](/guides/oauth) for guidance.

# Step 1: Activate a pre-built *sync*

Go to the [Syncs & Actions tab](https://app.nango.dev/syncs) and click the `Add New` button.

<Frame>
  <img src="https://mintlify.s3-us-west-1.amazonaws.com/nango-tiktok-accounts-update/images/quickstart/add-new-sync.png" />
</Frame>

From the `Provider` dropdown, select the desired API. In the `Template` dropdown, pick the *sync* that correspond to the object(s) you want to synchronize. Click `Add Sync` at the page's bottom.

Fantastic! Nango will now automatically sync these objects in the background.

# Step 2: Fetch the synced data

Fetch the synced data

Transition to the [Project Settings tab](https://app.nango.dev/project-settings) to obtain the secret key essential for fetching the synced data:

<Frame>
  <img src="https://mintlify.s3-us-west-1.amazonaws.com/nango-tiktok-accounts-update/images/quickstart/secret-key.png" />
</Frame>

Now, collect the continually updated data:

<Tabs>
  <Tab title="cURL">
    ```bash
    curl --request GET \
      --url 'https://api.nango.dev/records?model=<MODEL-NAME>' \
      --header 'Authorization: Bearer <PROJECT-SECRET-KEY>' \
      --header 'Connection-Id: <CONNECTION-ID>' \
      --header 'Provider-Config-Key: <INTEGRATION-ID>'
    ```
  </Tab>

  <Tab title="Node SDK">
    ```ts
    import { Nango }  from '@nangohq/node';

    const nango = new Nango({ secretKey: '<PROJECT-SECRET-KEY>' });

    const result = await nango.listRecords({
        providerConfigKey: '<INTEGRATION-ID>',
        connectionId: '<CONNECTION-ID>',
        model: '<MODEL-NAME>'
    });
    ```
  </Tab>
</Tabs>

Nango also sends [webhooks](/guides/webhooks) whenever new/updated/deleted records are detected. That's it 🎉

## Next Steps

Dive deeper with the [Customize Syncs & Actions guide](/guides/custom). Explore the [Field Mapping guide](/guides/field-mapping) or the [Webhooks guide](/guides/webhooks).

## Questions, problems, feedback?

We're here to help! Please reach out on the [Slack community](https://nango.dev/slack), we are very active there.