---
layout: page
title: "Server-sent events"
description: "Home Assistant Server-sent events documentation"
date: 2016-04-08 07:00
sidebar: true
comments: false
sharing: true
footer: true
---
The [server-sent events](https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events) feature is a one-way channel from your Home Assistant server to a client which is acting as a consumer. For bi-directional communication check the [RESTful API](/developers/rest_api/) and [Python API](/developers/python_api/).
The URI that is generating the data is `/api/stream`.
A requirement on the client-side is existing support for the [EventSource](https://developer.mozilla.org/en-US/docs/Web/API/EventSource) interface.
There are various ways to access the stream. One is `curl`:
```bash
$ curl -X GET -H "x-ha-access: YOUR_PASSWORD" \
-H "Content-Type: application/json" http://localhost:8123/api/stream
```
For more comfort put the HTML snippet below in a file `sse.html` in your `www` folder of your Home Assistant configuration directory (`.homeassistant`)
```html
Getting Home Assistant server events
```
Visit [http://localhost:8123/local/sse.html](http://localhost:8123/local/sse.html) to see the stream of events.
## {% linkable_title Examples %}
A simplest way to consume server-sent events is `httpie`.
```bash
$ http --stream http://localhost:8123/api/stream x-ha-access:YOUR_PASSWORD content-type:application/json
```
### {% linkable_title Website %}
The [home-assistant-sse](https://github.com/fabaff/home-assistant-sse) repository contains an more advanced example.
### {% linkable_title Python %}
If you want test the server-sent events without creating a website then the Python module [`sseclient` ](https://pypi.python.org/pypi/sseclient/) can help. Install it first:
```bash
$ pip3 install sseclient
```
The simplest script to consume the SSE looks like the following snipplet.
```python
from sseclient import SSEClient
messages = SSEClient('http://localhost:8123/api/stream?api_password=YOUR_PASSWORD')
for msg in messages:
print(msg)
```