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Relate

Environment Variables

To keep secrets confidential, we're using environment variables set in Heroku. You'll see stuff like this in the codebase:

config.secret_key = ENV['DEVISE_SECRET_KEY']

That means if you just run rails or rspec you'll get something like this:

$ rails s
...
Devise.secret_key was not set. Please add the following to your Devise initializer: (RuntimeError)

  config.secret_key = '...'

...

So, we're using Foreman to take care of the heavy lifting for us. First, you'll have to put the following in a file called .env:

SECRET_KEY_BASE=fake_secret_key_base
DEVISE_SECRET_KEY=fake_devise_secret_key

Make sure that fake_secret_key_base and the like are in quotes. (You can use the key generated in the error message above for the fake keys if you'd like, or rake secret.) .env is ignored in .gitignore, so don't expect it to be under source control.

When you want to run something like rails or rspec, prepend it with foreman run bundle exec. To make my life easier, I have the following aliases in my .bashrc file:

alias fr="foreman run bundle exec rails"
alias fs="foreman run bundle exec rspec"

Because these are also needed for precompiling assets, I've enabled Heroku's user-env-compile.

For more information on using environment variables on Heroku, check out Heroku's article on Configuration and Config Vars.

Mail

For testing mailers, I'm using MailCatcher. I recommend you do too. In production, we're sending mail through Heroku's SendGrid app.

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