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Docs | Val Town

Environment variables

The proper place to store secrets, keys, and API tokens is in Environment Variables. When you add a key and value to the list of environment variables on that page, it becomes available via the Deno.env and process.env variables.

Environment variables can be accessed via Deno.env or process.env.

  • The “key” and “value” of each environment variable can be any string
  • Vals can’t set environment variables: Environment variables are set via the settings page. Trying to update an environment variable, for example by using Deno.env.set, is a no-op.

Deno.env

This uses the Deno-default Deno.env variable, which is available globally.

const secret = Deno.env.get("someSdkSecret");
export let sdk = new SomeSDK(secret);

process.env

This is the conventional way to access environment variables when you’re in a Node.js environment. In Node.js, process is an always-available global variable, but since Val Town targets Deno, you’ll need to import process from node:process:

import process from "node:process";


const secret = process.env.someSdkSecret;
export let sdk = new SomeSDK(secret);