plaid / envvar Goto Github PK

See https://github.com/plaid/style/pull/37 for a background.

I believe there are two things we should do to make environment variables more pleasant to work with.

1. We should add a --help flag to all service executables which prints out the required environment variables, and optionally some other information about the service.
2. When you forget a required env var, all required env vars should be printed out, not just the one you forgot. This will reduce time to get up and running and eliminate the cycle of add the env var, run the service, add another env var, run it again, etc. It might make sense to just print the help text in this case.

In every node.js version I tested (6, 8, 10) the UnsetVariableError thrown by this module does not have a stack property because the Error prototype is a weird one to extend from. You need to either use ES6 classes or something like https://github.com/JsCommunity/make-error.