TTC

Theo's Typesafe Cult•3y ago•

1 reply

jamies1211

How to handle deployment only environment variables with @t3-oss/env-nextjs?

Hi there, hope this is in the right place for this question.

I wanna start using

@t3-oss/env-nextjs

@t3-oss/env-nextjs

to handle my environment variables however I have a few differences between the set of variables used in production and development and was wondering the recomended way to deal with this. Ideally I would like this to be a union type so I can achieve type narrowing. For now I am using

optional

optional

but I may change to setting defaults.

In the event that it may help to know why / what is different this is the list:

1- Vercel deployment environment variables - https://vercel.com/docs/concepts/projects/environment-variables/system-environment-variables
2- Google Cloud SQL I use SSL connection when in prod with SSL certificates stored in Vercel, however in development I use CloudSQLProxy instead so none of the SSL stuff is defined
3- Our mail provider does not let you have multiple API keys for different channels () so we just don't send mail in development.

Vercel Documentation

System Environment Variables Overview

Vercel Environment variables that are automatically populated by the System, such as the URL of the Deployment or the name of the Git branch deployed.