---
title: "Publish Data"
url: https://docs.catalyst.zoho.com/en/sdk/python/v1/cloud-scale/data-streams/publish-data/
description: "This page describes the method to publish real-time data to a Data Streams channel in your Python application with sample code snippets."
last_updated: 2026-10-05T15:13:57Z
service: Cloud Scale
type: general
related_links:
  - name: "Data Streams Help"
    url: /en/cloud-scale/help/data-streams/introduction
  - name: "SDK Scopes"
    url: /en/sdk/python/v1/sdk-scopes
---

# Publish Data

[Catalyst Data Streams](https://docs.catalyst.zoho.com/en/cloud-scale/help/data-streams/introduction/) enables you to publish real-time data to a channel. Any active subscribers connected to that channel will receive the published data instantly through their WebSocket connections.

You can publish data to a channel by passing the channel ID and the data payload to the `publish_data()` method. The `data_streams` reference used below is the component instance created earlier. To know more about this instance, please refer to [this section](https://docs.catalyst.zoho.com/en/sdk/python/v1/cloud-scale/data-streams/get-component-instance/).

**Parameters Used**

<table class="content-table">
	<thead>
		<tr>
			<th class="w20p">Parameter Name</th>
			<th class="w20p">Data Type</th>
			<th class="w60p">Definition</th>
		</tr>
	</thead>
	<tbody>
		<tr>
			<td>`channel_id`</td>
			<td>String</td>
			<td>A **Mandatory** parameter. Holds the unique ID of the channel.</td>
		</tr>
		<tr>
			<td>`data`</td>
			<td>Object</td>
			<td>A **Mandatory** parameter. Holds the data payload to be published to the channel.</td>
		</tr>
	</tbody>
</table>

```python
# Publish a message to all subscribers of the channel
publish_response = data_streams.publish_data("CHANNEL_ID", "Hello, subscribers!")
```