Question: How to use with Expo

[FleetAdmiralJakob]

Question: How to use with Expo

[drazik]

I don't know if I'm doing this right, but here is what I did and is working:

• create a env.ts file with my environment variables schema:

import { createEnv } from "@t3-oss/env-core"
import { z } from "zod"

export const env = createEnv({
	clientPrefix: "EXPO_PUBLIC_",
	client: {
		EXPO_PUBLIC_GOOGLE_MAPS_API_KEY: z.string().min(1),
		EXPO_PUBLIC_API_BASE_URL: z.string().url(),
	},
	runtimeEnv: {
		EXPO_PUBLIC_GOOGLE_MAPS_API_KEY:
			process.env.EXPO_PUBLIC_GOOGLE_MAPS_API_KEY,
		EXPO_PUBLIC_API_BASE_URL: process.env.EXPO_PUBLIC_API_BASE_URL,
	},
})

• create a .env file that contains all my environment variables with fake values: this file is versioned as a reference for all the environment variables that should be filled in the project
• create a .env.local file that contains the environment variables with real values: this file in git ignored

Then use the env object

import { env } from "@/env"

env.EXPO_PUBLIC_GOOGLE_MAPS_API_KEY

I hope it helps!