esphome-docs/components/web_server.rst

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Web Server Component
====================
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.. seo::
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:description: Instructions for setting up a web server in ESPHome.
:image: http.svg
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:keywords: web server, http, REST API
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The ``web_server`` component creates a simple web server on the node that can be accessed
through any browser and a simple `REST API`_. Please note that enabling this component
will take up *a lot* of memory and can lead to problems, especially on the ESP8266.
To navigate to the web server in your browser, either use the IP address of the node or
use ``<node_name>.local/`` (note the trailing forward slash) via mDNS.
To conserve flash size, the CSS and JS files used on the root page to show a simple user
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interface are hosted by esphome.io. If you want to use your own service, use the
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``css_url`` and ``js_url`` options in your configuration.
.. _REST API: /web-api/index.html
.. figure:: /components/images/web_server.png
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:align: center
Example web server frontend.
.. code-block:: yaml
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# Example configuration entry
web_server:
port: 80
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Configuration variables:
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------------------------
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- **port** (*Optional*, int): The port the web server should open its socket on.
- **css_url** (*Optional*, url): The URL that should be used for the CSS stylesheet. Defaults
to https://esphome.io/_static/webserver-v1.min.css (updates will go to ``v2``, ``v3``, etc). Can be set to empty string.
- **css_include** (*Optional*, local file): Path to local file to be included in web server index page.
Contents of this file will be served as ``/0.css`` and used as CSS stylesheet by internal webserver.
Useful when building device without internet access, where you want to use built-in AP and webserver.
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- **js_url** (*Optional*, url): The URL that should be used for the JS script. Defaults
to https://esphome.io/_static/webserver-v1.min.js. Can be set to empty string.
- **js_include** (*Optional*, local file): Path to local file to be included in web server index page.
Contents of this file will be served as ``/0.js`` and used as JS script by internal webserver.
Useful when building device without internet access, where you want to use built-in AP and webserver.
- **auth** (*Optional*): Enables basic authentication with username and password.
- **username** (**Required**, string): The username to use for authentication.
- **password** (**Required**, string): The password to check for authentication.
- **include_internal** (*Optional*, boolean): Whether ``internal`` entities should be displayed on the
web interface. Defaults to ``false``.
- **ota** (*Optional*, boolean): Turn on or off the OTA feature inside webserver. Strongly not suggested without enabled authentication settings. Default: `true`
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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.. note::
Example web_server configuration using HTTP authentication:
.. code-block:: yaml
# Example configuration entry
web_server:
port: 80
auth:
username: admin
password: !secret web_server_password
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Example web_server configuration with CSS and JS included from esphome-docs.
CSS and JS URL's are set to empty value, so no internet access is needed for this device to show it's web interface.
Force to turn off OTA function because the missing authentication.
.. code-block:: yaml
# Example configuration entry
web_server:
port: 80
ota: false
css_include: "../../../esphome-docs/_static/webserver-v1.min.css"
css_url: ""
js_include: "../../../esphome-docs/_static/webserver-v1.min.js"
js_url: ""
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See Also
--------
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- :apiref:`web_server/web_server.h`
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- :doc:`prometheus`
- :ghedit:`Edit`