aioesphomeapi

aioesphomeapi

Python Client for ESPHome native API. Used by Home Assistant.

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aioesphomeapi allows you to interact with devices flashed with ESPHome. ESPHome is an open-source firmware that allows you to control your devices over Wi-Fi or Ethernet. With aioesphomeapi, you can connect to your ESPHome devices, retrieve their status, and control them from your Python code.

README:

aioesphomeapi

.. image:: https://github.com/esphome/aioesphomeapi/workflows/CI/badge.svg :target: https://github.com/esphome/aioesphomeapi?query=workflow%3ACI+branch%3Amain

.. image:: https://img.shields.io/pypi/v/aioesphomeapi.svg :target: https://pypi.python.org/pypi/aioesphomeapi

.. image:: https://codecov.io/gh/esphome/aioesphomeapi/branch/main/graph/badge.svg :target: https://app.codecov.io/gh/esphome/aioesphomeapi/tree/main

aioesphomeapi allows you to interact with devices flashed with ESPHome <https://esphome.io/>_.

Installation

The module is available from the Python Package Index <https://pypi.python.org/pypi>_.

.. code:: bash

$ pip3 install aioesphomeapi

An optional cython extension is available for better performance, and the module will try to build it automatically.

The extension requires a C compiler and Python development headers. The module will fall back to the pure Python implementation if they are unavailable.

Building the extension can be forcefully disabled by setting the environment variable SKIP_CYTHON to 1.

Usage

It's required that you enable the Native API <https://esphome.io/components/api.html>_ component for the device.

.. code:: yaml

Example configuration entry

api: password: 'MyPassword'

Check the output to get the local address of the device or use the name:under esphome: from the device configuration.

.. code:: bash

[17:56:38][C][api:095]: API Server: [17:56:38][C][api:096]: Address: api_test.local:6053

The sample code below will connect to the device and retrieve details.

.. code:: python

import aioesphomeapi import asyncio

async def main(): """Connect to an ESPHome device and get details."""

   # Establish connection
   api = aioesphomeapi.APIClient("api_test.local", 6053, "MyPassword")
   await api.connect(login=True)

   # Get API version of the device's firmware
   print(api.api_version)

   # Show device details
   device_info = await api.device_info()
   print(device_info)

   # List all entities of the device
   entities = await api.list_entities_services()
   print(entities)

loop = asyncio.get_event_loop()
loop.run_until_complete(main())

Subscribe to state changes of an ESPHome device.

.. code:: python

import aioesphomeapi import asyncio

async def main(): """Connect to an ESPHome device and wait for state changes.""" cli = aioesphomeapi.APIClient("api_test.local", 6053, "MyPassword")

   await cli.connect(login=True)

   def change_callback(state):
       """Print the state changes of the device.."""
       print(state)

   # Subscribe to the state changes
   await cli.subscribe_states(change_callback)

loop = asyncio.get_event_loop() try: asyncio.ensure_future(main()) loop.run_forever() except KeyboardInterrupt: pass finally: loop.close()

Other examples:

  • Camera <https://gist.github.com/micw/202f9dee5c990f0b0f7e7c36b567d92b>_
  • Async print <https://gist.github.com/fpletz/d071c72e45d17ba274fd61ca7a465033#file-esphome-print-async-py>_
  • Simple print <https://gist.github.com/fpletz/d071c72e45d17ba274fd61ca7a465033#file-esphome-print-simple-py>_
  • InfluxDB <https://gist.github.com/fpletz/d071c72e45d17ba274fd61ca7a465033#file-esphome-sensor-influxdb-py>_

Development

For development is recommended to use a Python virtual environment (venv).

.. code:: bash

# Setup virtualenv (optional)
$ python3 -m venv .
$ source bin/activate
# Install aioesphomeapi and development depenencies
$ pip3 install -e .
$ pip3 install -r requirements_test.txt

# Run linters & test
$ script/lint
# Update protobuf _pb2.py definitions (requires a protobuf compiler installation)
$ script/gen-protoc

A cli tool is also available for watching logs:

.. code:: bash

aioesphomeapi-logs --help

A cli tool is also available to discover devices:

.. code:: bash

aioesphomeapi-discover

License

aioesphomeapi is licensed under MIT, for more details check LICENSE.

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