/canary-core

Define the core Django app for interfacing with the HouseCanary API

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canary_core

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pipeline status coverage code style: black pre-commit: enabled Checked with mypy repo: gitlab CircleCI

Define the canary_core Django project for interfacing with the HouseCanary API. This project provides a custom Django app for interacting with third-party APIs providing property data: canary_core.hc_api_connector

System Dependencies

Two development strategies are supported by this project: container-based development using Docker, or bare-metal development from a virtual environment. The former requires minimal system dependencies; however, it requires additional IDE configuration steps for PyCharm and VSCode, which are not covered here.

When developing from a virtual environment, the following system dependencies are recommended:

  • docker
    • alternatively, all optional dependencies (except direnv and tox) must be installed to support this application
  • docker-compose
    • Docker Desktop for macOS and Windows provide the Docker Compose CLI; this may be used instead
  • (optional) poetry
    • only required when working from a virtual environment; VSCode can be used to develop directly from inside the project's Docker container
  • (optional) direnv
    • this provides a shortcut to setup/update the project's dev environment; an alternative is to just run the following:
      $ . ./.envrc
  • (optional) postgresql 14
    • the db image managed by this project may be used instead
  • (optional) tox
    • tox is used to run the test suite using multiple python interpreter versions; it works best with pyenv

Production Setup

This project manages Docker images for its API and database layers; accordingly, multiple frameworks can be used to orchestrate the containers.

Demo on a single system:

  1. Download docker-compose.yml and base.env
  2. Rename base.env.env
  3. Launch the app by calling docker-compose up
  4. Navigate to localhost:8000 to use the app

Development Setup

After selecting a development strategy and installing necessary dependencies, see the following steps for completing the environment setup.

Container-based Development

To start the minimal production containers locally, you can use docker-compose.

  1. Clone this repo
  2. . ./.envrc to set environment variables
  3. docker-compose pull to pull the required Docker images
  4. export CANARY_CORE_CMD='django-admin runserver' in order to run the development server (by default, the API container runs sleep infinity)
  5. To create the shortcut dev-compose, run eval "$(CANARY_ALIASES)"
    • this is just an alias for docker-compose -f docker-compose.yml -f compose/dev.yml
  6. Finally, run dev-compose up -d

The above should start a network of three containers: db (the postgresql database), house_canary (the HouseCanary mock API server), and api (the core API container).

Virtual Environment

To perform the environment setup:

  1. Clone this repo
  2. direnv allow to allow direnv to automatically execute .envrc
  3. Run ./api/docker-entrypoint.sh to start the development server
  4. To start the mock HouseCanary API server, run the following:
    $ CANARY_CORE_ROOT_URLCONF=canary_core.hc_api_connector.tests.mock_api django-admin runserver localhost:8080

Next Steps

  • integrate authorization class / model for restricting property data access to property owners + staff
  • split pre-commit QA jobs into mypy, flake8, black, and prettier for more clarity/better feedback
  • add routes for integrating drf-yasg to document the API
  • build and publish package to internal registry using a CI job
  • add integration tests for the primary application

Appendix

The following was generated by GitLab and is retained as a reference.

Getting started

To make it easy for you to get started with GitLab, here's a list of recommended next steps.

Already a pro? Just edit this README.md and make it your own. Want to make it easy? Use the template at the bottom!

Add your files

cd existing_repo
git remote add origin https://gitlab.com/django-canary/core.git
git branch -M main
git push -uf origin main

Integrate with your tools

Collaborate with your team

Test and Deploy

Use the built-in continuous integration in GitLab.


Editing this README

When you're ready to make this README your own, just edit this file and use the handy template below (or feel free to structure it however you want - this is just a starting point!). Thank you to makeareadme.com for this template.

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