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Flask-Download-Btn defines a SQLALchemy Mixin for creating Bootstrap download buttons in a Flask application.

Project description

Flask-Download-Btn

Flask-Download-Btn defines a SQLALchemy Mixin for creating Bootstrap download buttons in a Flask application.

Its key features are:

  1. Automatic enabling and disabling: A download button is automatically disabled on click and re-enabling on download completion.
  2. Web form handling: Applications can modify a download button on click based on web form responses.
  3. Progress bar: Download buttons report progress using a progress bar updated with server-sent events.

Example: Basic use

Suppose we want to include a download button which downloads hello_world.txt accessible at HELLO_WORLD_URL. On click, we want to disable the button and re-enable it when the file finishes downloading.

After setup, we can achieve this with the following:

@app.route('/')
def index():
    btn = DownloadBtn()
    btn.text = 'Download'
    btn.downloads = [(HELLO_WORLD_URL, 'hello_world')]
    db.session.add(btn)
    db.session.commit()
    return render_template('index.html', download_btn=btn)

Documentation

You can find the latest documentation at https://dsbowen.github.io/flask-download-btn.

License

Publications which use this software should include the following citation for SQLAlchemy-Function and its dependencies, SQLAlchemy-Function and SQLAlchemy-Mutable:

Bowen, D.S. (2019). Flask-Download-Btn[Computer software]. https://dsbowen.github.io/flask-download-btn.

Bowen, D.S. (2019). SQLAlchemy-Function [Computer software]. https://dsbowen.github.io/sqlalchemy-function.

Bowen, D.S. (2019). SQLAlchemy-Mutable [Computer software]. https://dsbowen.github.io/sqlalchemy-mutable.

This project is licensed under the MIT License LICENSE.

Project details


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