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Dash Component Boilerplate

This repository contains a Cookiecutter template to create your own Dash components.

Usage

To use this boilerplate:

  1. Install the requirements: 
    $ pip install cookiecutter
$ pip install virtualenv
    Node.js/npm is also required.
  2. Run cookiecutter on the boilerplate repo: 
    $ cookiecutter gh:plotly/dash-component-boilerplate
  3. Answer the questions about the project.
    • project_name: This is the "human-readable" name of your project. For example, "Dash Core Components".
    • project_shortname: is derived from the project name, it is the name of the "Python library" for your project. By default, this is generated from your project_name by lowercasing the name and replacing spaces & - with underscores. For example, for "Dash Core Components" this would be "dash_core_components".
    • component_name: This is the name of the initial component that is generated. As a JavaScript class name it should be in PascalCase. defaults to the PascalCase version of project_shortname.
    • jl_prefix: Optional prefix for Julia components. For example, dash_core_components uses "dcc" so the Python dcc.Input becomes dccInput in Julia, and dash_table uses "dash" to make dashDataTable.
    • r_prefix: Optional prefix for R components. For example, dash_core_components uses "dcc" so the Python dcc.Input becomes dccInput in R, and dash_table uses "dash" to make dashDataTable.
    • author_name and author_email: for package.json and DESCRIPTION (for R) metadata.
    • github_org: If you plan to push this to GitHub, enter the organization or username that will own it (for URLs to the project homepage and bug report page)
    • description: the project description, included in package.json.
    • license: License type for the component library. Plotly recommends the MIT license, but you should read the generated LICENSE file carefully to make sure this is right for you.
    • publish_on_npm: Set to false to only serve locally from the package data.
    • install_dependencies: Set to false to only generate the project structure.
  4. The project will be generated in a folder named with your project_shortname.
  5. Follow the directions in the generated README to start developing your new Dash component.

Installing the dependencies can take a long time. They will be installed in a folder named venv, created by virtualenv. This ensures that dash is installed to generate the components in the build:backends script of the generated package.json.

Advanced customization

Shared cache groups for async chunks

Shared async chunks for code that repeats across multiple async chunks is already supported through our custom webpack.config.js optimizations. You can leverage it by manually the path of {{cookiecutter.project_shortname}}-shared.js to _js_dist inside {{cookiecutter.project_shortname}}/__init__.py (as well as the associated external URL).

More Resources