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A simple function that returns the value of an environment variable, butthrows if it's not a non-empty string.Logs the entire environment toconsole.error to aid debugging.Flow type defs included.

npm install --save @jcoreio/require-env

varrequireEnv=require('require-env')varFOO=requireEnv('FOO')// now you can be sure that FOO is a non-empty string, and Flow will trust that it is too.

By default it looks inprocess.env, but you can override this by passing the environmenthash as the second argument:

varenvironment={ ...process.env, ...require('./defaultEnv.js')}varFOO=requireEnv('FOO',environment)

• defaultenv - fantastic CLI/Node API for loading default environment variable values

In the pastErrors thrown had all environment variables in theirmessages.I've since realized this was a huge security risk when error messages are sentfrom server to client. Now the message and environment variables are printed toconsole.error. You can customize this by monkeypatching therequire('@jcoreio/require-env').logError function.