Tilex - Today I Learned in Elixir

Today I Learned is an open-source project by the team at Hashrocket that catalogues the sharing & accumulation of knowledge as it happens day-to-day. Posts have a 200-word limit, and posting is open to any Rocketeer as well as select friends of the team. We hope you enjoy learning along with us.

This site was open-sourced as a window into our development process, as well as to allow people to experiment with the site on their own and contribute to the project.

We originally implemented Tilex as hr-til, a Ruby on Rails app.

Installation

If you are creating your own version of the site, fork the repository.

Then, install Erlang, Elixir, Phoenix, and PostgreSQL.

Next, follow these setup steps:

$ git clone https://github.com/hashrocket/tilex
$ cd tilex

At this point you can use make for development commands. To access make help just type: make or make help. Then you can run make with target(s) such as: make setup server and so on. Environment variables will automatically loaded from .env file in case you need to change it.

$ make
$ make setup server

Or run commands manually. To set environmental variables, copy the example file:

$ cp .env{.example,}

For setting up the project and start the server manually run:

$ source .env
$ mix deps.get
$ mix ecto.setup
$ npm install --prefix assets
$ mix phx.server

If you'd like to skip the database seeds, run mix ecto.create && mix ecto.migrate in place of mix ecto.setup.

Now you can visit localhost:4000 from your browser.

To serve the app at a different port, include the PORT environment variable when starting the server:

$ PORT=4444 mix phx.server

Authentication

Authentication is managed by Ueberauth and Google. See the ueberauth_google README and Google Oauth 2 docs for setup instructions. To allow users from a domain and/or comma separated whitelist, set those configurations in your environment:

# .env

export GOOGLE_CLIENT_ID="your-key.apps.googleusercontent.com"
export GOOGLE_CLIENT_SECRET="yoursecret"
export HOSTED_DOMAIN="your-domain.com"
export GUEST_AUTHOR_WHITELIST="joedeveloper@otherdomain.com, suziedeveloper@freelancer.com"

Once set, visit localhost:4000/admin and log in with an email address from your permitted domain.

Tilex creates a new user on the first authentication, and then finds that same user on subsequent authentications.

Testing

Wallaby relies on ChromeDriver; install it via your method of choice.

Run the tests with:

$ make test

or:

$ mix test

Deployment

Hashrocket's Tilex is deployed to Heroku. These are Hashrocket's deployed instances:

• Staging: https://tilex-staging.herokuapp.com
• Production: https://til.hashrocket.com

This project contains Mix tasks to deploy our instances; use as follows:

$ mix deploy <environment>

Contributing

Please see CONTRIBUTING for more information.

Code of Conduct

This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct. Please see CODE OF CONDUCT for more information.

Usage

We love seeing forks of Today I Learned in production! Please consult USAGE for guidelines on appropriate styling and attribution.

License

Tilex is released under the MIT License. Please see LICENSE for more information.

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About

Tilex is supported by the team at Hashrocket, a multidisciplinary design and development consultancy. If you'd like to work with us or join our team, don't hesitate to get in touch.