##########
Flask-HTMX
##########
.. image:: https://badge.fury.io/py/flask-htmx.svg
:target: https://badge.fury.io/py/flask-htmx
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:target: https://flask-htmx.readthedocs.io/en/latest/?badge=latest
:alt: Documentation Status
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:target: https://codecov.io/gh/edmondchuc/flask-htmx
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:target: https://github.com/edmondchuc/flask-htmx/blob/main/LICENSE
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:target: https://pepy.tech/project/flask-htmx
A Flask extension to work with HTMX.
Documentation: https://flask-htmx.readthedocs.io
.. quickstart-startblock
Quickstart
==========
Install the extension with pip.
.. code-block:: bash
pip install flask-htmx
Or perhaps you use Poetry.
.. code-block:: bash
poetry add flask-htmx
HTMX Request
------------
You can register the HTMX object by passing the Flask
:code:`app` object via the constructor.
.. code-block:: python
htmx = HTMX(app)
Or you can register the HTMX object using
`HTMX.init_app() <https://flask-htmx.readthedocs.io/en/latest/flask_htmx.htmx.html#flask_htmx.htmx.HTMX.init_app>`_.
.. code-block:: python
htmx = HTMX()
htmx.init_app(app)
A minimal working example.
.. code-block:: python
from flask import Flask, render_template
from flask_htmx import HTMX
app = Flask(__name__)
htmx = HTMX(app)
@app.route("/")
def home():
if htmx:
return render_template("partials/thing.html")
return render_template("index.html")
The above example checks whether the request came
from HTMX or not. If :code:`htmx` evaluates to
`True <https://docs.python.org/3/library/constants.html#True>`_, then it was a HTMX request, else
`False <https://docs.python.org/3/library/constants.html#False>`_.
This allows you to return a partial
HTML when it's a HTMX request or the full page HTML
when it is a normal browser request.
Flask-HTMX also supports checking for HTMX headers
during a request in the view. For example, check
the current URL of the browser of a HTMX request.
.. code-block:: python
@app.route("/")
def home():
current_url = htmx.current_url
return render_template("index.html", current_url=current_url)
Other HTMX request headers are also available.
See https://htmx.org/reference/#request_headers.
HTMX Response
-------------
You might be interested on adding
`htmx response headers <https://htmx.org/reference/#response_headers>`_ to your response.
Use :code:`flask_htmx.make_response` for that. For example, instead of:
.. code-block:: python
import json
from flask import make_response
from my_app import app
@app.route("/hola-mundo")
def hola_mundo():
body = "Hola Mundo!"
response = make_response(body)
response.headers["HX-Push-URL"] = "false"
trigger_string = json.dumps({"event1":"A message", "event2":"Another message"})
response.headers["HX-Trigger"] = trigger_string
return response
You can do:
.. code-block:: python
from flask_htmx import make_response
from my_app import app
@app.route("/hola-mundo")
def hola_mundo():
body = "Hola Mundo!"
return make_response(
body,
push_url=False,
trigger={"event1": "A message", "event2": "Another message"},
)
.. quickstart-endblock
Documentation
=============
Visit the `full documentation <https://flask-htmx.readthedocs.io>`_.
Development
===========
Installation
------------
.. code-block:: bash
poetry install
Running tests
-------------
.. code-block:: bash
poetry run pytest
Coverage
--------
.. code-block:: bash
poetry run pytest --cov=flask_htmx tests/
Docs
----
.. code-block:: bash
sphinx-autobuild docs docs/_build/html
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