Skip to main content

Inertiajs Adapter for Flask.

Project description

coverage version inertiaversion license

Inertiajs Adapter for Flask.

Installation

$ pip install flask-inertia

Configuration

The module needs to be initialized the usual Flask way and can be configured using app.config keys:

from flask import Flask
from flask_inertia import Inertia

SECRET_KEY = "secret!"
# mandatory key
INERTIA_TEMPLATE = "base.html"

app = Flask(__name__)
app.config.from_object(__name__)

inertia = Inertia()
inertia.init_app(app)
# or inertia = Inertia(app)

The config key INERTIA_TEMPLATE must be used to set globally the template used by flask_inertia to render the server responses. This template must exists in the Flask app templates folder.

Use

For more information about InertiaJS, please read the docs provided by Inertia.

Whereas the Rails and Laravel adapters use a middleware to manage Inertia’s requests, this module doesn’t. Once it has been initiliazed it will create before_request and after_request hooks for your app to handle InertiaJS frontend requests.

Your templates

You will need to setup the root template that will be loaded on the first page visit. It will be used to load your site assets (CSS and JavaScript), and will also contain a root <div> to boot your JavaScript application in.

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
    <title>My app</title>
    <link href="{{ url_for('static', filename='/css/app.css') }}" rel="stylesheet" />
    <script lang="javascript">
      {{ inertia.include_router() }}
    </script>
  </head>
  <body>
    <div id="app" data-page='{{ page | tojson }}'></div>
    <script src="{{ url_for('static', filename='/js/app.js') }}" defer></script>
  </body>
</html>

Your root div must set a HTML data-page attribute. It will be used by Flask, using a Page JSON object to communicate with Inertia.

To facilitate the route path resolving, the module provide a template context method called inertia.include_router. It will expose the Flask views resolution (like the url_for method) to your frontend Components.

This method has been extracted to django-js-routes package and works the same way via a window.reverseUrl JavaScript method ( https://github.com/ellmetha/django-js-routes#usage).

Create responses

This module provides a method render_inertia to render your frontend component through Flask responses. It will wrap your Responses and act accordingly to Inertia requests context responding a full html or a JSON reponse. It will be used instead of Flask render_template method:

from flask_inertia import render_inertia

@app.route("/test_inertia/")
def test_inertia():
    """An endpoint to test inertia integration."""
    data = {
        "username": "foo",
        "login": "bar",
    }
    return render_inertia(
        component_name="Index",
        props=data,
    )

This method take 3 arguments:

  • component_name: Your frontend component name (eg “Index” for an Index.vue Component for example)

  • props: [OPTIONAL] Data used by your component

  • view_data: [OPTIONAL] Data used in your template but not sent to your JavaScript components

Root template data

There are situations where you may want to access your prop data in your root Jinja2 template. These props are available via the page variable.

<meta name="author" content="{{ page['props']['username'] }}">

You may want to provide data that will not be sent to your JavaScript components. You can do this using the view_data dictionnary in the render_inertia method:

return render_inertia(
    component_name="Index",
    props=data,
    view_data={
        "description": "A test page"
    }
)

You can then access this variable with the template variable view_data.

<meta name="content" content="{{ view_data['description'] }}">

Share data between requests

Sometimes you need to access certain data on numerous pages within your application. For example, a common use-case for this is showing the current user in the site header. Passing this data manually in each response isn’t practical. In these situations shared data can be useful.

This module provides a share method into the Inertia class to preassign shared data for each request. Shared data will be automatically merged with the page props provided in your controller. It takes as argument a key/value pair to serialize it in JSON in the responses.

You can set the shared data statically or programmatically using the method as followed:

inertia = Inertia(app)

# set statically a shared data
inertia.share("foo", "bar")

# or a computed value
def shared_value():
    return "buzz"

inertia.share("fizz", shared_value)

If the value is a callable, the module will resolve it during the response resolution.

To see a complete exemple on how to implement a project with this adapter, please read our Tutorial.

Contributing

If you want to contribute to this project, please read the dedicated file : CONTRIBUTING.rst.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

flask-inertia-0.6.tar.gz (20.8 kB view details)

Uploaded Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

flask_inertia-0.6-py2.py3-none-any.whl (14.6 kB view details)

Uploaded Python 2Python 3

File details

Details for the file flask-inertia-0.6.tar.gz.

File metadata

  • Download URL: flask-inertia-0.6.tar.gz
  • Upload date:
  • Size: 20.8 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/4.0.2 CPython/3.12.0

File hashes

Hashes for flask-inertia-0.6.tar.gz
Algorithm Hash digest
SHA256 e376532006cbab7c7a0ebc99a83ec289c6768f94218a611cd1b1c74cbf595773
MD5 73562e4faa2ad7dbf331c756602b5f21
BLAKE2b-256 23094e39511d55c7a9acdfa73f00e4b578944fbd67f3f85921ac8c21b4195087

See more details on using hashes here.

File details

Details for the file flask_inertia-0.6-py2.py3-none-any.whl.

File metadata

  • Download URL: flask_inertia-0.6-py2.py3-none-any.whl
  • Upload date:
  • Size: 14.6 kB
  • Tags: Python 2, Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/4.0.2 CPython/3.12.0

File hashes

Hashes for flask_inertia-0.6-py2.py3-none-any.whl
Algorithm Hash digest
SHA256 aef8db8750b3813b19390bf47bd16740e7bdf3316c77a224400a6b8b7f868758
MD5 5cef04c96a332facb967d3e87fc3644d
BLAKE2b-256 cf3233884b4be36b4f5613ffd232ee6e7261b38506d29f00d0cfb0f8f7f86f2b

See more details on using hashes here.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Depot Continuous Integration Fastly CDN Google Download Analytics Pingdom Monitoring Sentry Error logging StatusPage Status page