tethysdash 0.19.15

A Tethys App for no code/low code web application development app

TethysDash

This app was created using an experimental Tethys + React app scaffold. It uses React for the frontend of the app and Tethys as the backend. For more detailed information, check the official TethysDash documentation

Quick Installation

1. If creating a new python environment, create and activate it

    python3 -m venv test_env
    source test_env/bin/activate

2. Install TethysDash

    pip install tethysdash

3. Setup Tethys and TethysDash Databases and Services

    tethysdash setup

4. Start Tethys Portal

    tethysdash start

Development Installation

You need to install both the Tethys dependencies and the node dependencies:

1. If creating a new python environment, create and activate it

    python3 -m venv test_env
    source test_env/bin/activate

2. Clone the Repo

git clone https://github.com/tethysplatform/tethysapp-tethys_dash

3. Install the app in Tethys Platform

cd tethysapp-tethys_dash/
pip install -e .

4. Setup Tethys and TethysDash Databases and Services

    tethysdash setup

5. Install Plugin Examples (not necessary but recommended)

cd ..
git clone https://github.com/FIRO-Tethys/tethysdash_examples
cd tethysdash_examples
pip install -e .

6. Start Tethys Portal

    tethysdash start

Frontend Development

The webpack dev server is configured to proxy the Tethys development server (see webpack.config.js). The app endpoint will be handled by the webpack development server and all other endpoints will be handled by the Tethys (Django) development server. As such, you will need to start both in separate terminals.

1. Install the node and dependencies

cd tethysapp-tethys_dash/
npm install --dev

2. Start Tethys development server

tethys manage start

3. Start webpack development server (in separate terminal)

npm start

Frontend Build

Webpack is configured to bundle and build the React app into the tethysapp/<app_package>/public/frontend directory. Before building a Python distribution for release, you should build using this command:

npm run build

Serving the built frontend in development

The production build emits content-hashed filenames (e.g. main.<hash>.js) and a manifest.json mapping logical names to the hashed files. When DEBUG=True, the Tethys server normally references the unhashed main.js served from memory by the webpack dev server. If you want to serve the built bundle directly from the Tethys server (e.g. at localhost:8000) without running the webpack dev server or disabling DEBUG, set the TETHYSDASH_SERVE_BUILT_FRONTEND environment variable when starting the server:

TETHYSDASH_SERVE_BUILT_FRONTEND=true tethys manage start

The variable must be set in the shell that launches the server so the runserver child process inherits it. With it set, the page loads the hashed bundle from manifest.json; without it, behavior is unchanged.

Frontend Test

Use the following commands to lint and test the React portion of the app.

npm run lint
npm run test

The linting capability is powered by eslint and a number of plugins for React. The testing capabilities include jest, jsdom, testing-framework, user-event, and a few other JavaScript testing utilties to make it easy to test the frontend of the React-Tethys app.