Environment Variables

Add .env to your .gitignore file

Make sure to prevent your credentials and api keys being uploaded to github

Create your .env file with the following information:

DISCORD_TOKEN="YOUR_DISCORD_BOT_TOKEN"
OWNER_ID="YOUR_DISCORD_USER_ID"
CLIENT_ID="YOUR_BOT_CLIENT_ID"
DEVELOPMENT_GUILD_ID="YOUR_SERVER_ID"

You can find your bot Client Id: (Discord Developer Portal > "General Information" > application id)

In hosting server, such as heroku, there is a section to place your variables and do not need the .env unless you are hosting the bot on your local computer

To access the DISCORD_TOKEN or other environment variables you can just type process.env.DISCORD_TOKEN