async env variables

[SaadBazaz]

Hey,
I was wondering if it was possible to update env variables async at boottime? I have an env variable based on a server-side call, so would love to have something like:

runtimeEnvs: {
    MY_ENV: async () => { return await fetch("myurl.com") }
}

[chungweileong94]

It's possible right now, but not the way you expected.

import { createEnv as createT3Env } from "@t3-oss/env-core";
import { z } from "zod";

async function loadEnv() {
  const value = await fetch("myurl.com").then(async (r) => await r.json());

  return createEnv({
    server: {
      MY_ENV: z.string(),
    },
    runtimeEnv: {
      MY_ENV: value,
    },
  });
}

// Usage
const env = await loadEnv()

[kevinszuchet]

Did it work for you @SaadBazaz ?