Environment Variables

Deno.env

-> Deno runtime offers built-in support for environment variables with deno.json

-> Deno.env has getter and setter methods

Deno.env.set("FIREBASE_API_KEY", "API_KEY");
Deno.env.set("DOMAIN", "DOMAIN_URL");

console.log(Deno.env.get("FIREBASE_API_KEY"));
console.log(Deno.env.has("DOMAIN"));

---

.env

You can also put environment variables in .env file and retrieve them using dotenv in the standard library

.env

PASS=howdy

app.ts

import {load} from "https://deno.land/std/dotenv/mod.ts";

const env = await load();
const password = env['PASS'];

console.log(password);

---

std/flags

Deno standard library has a std/flags module for parsing command line arguments

---

[[DENO LAND/Basics/Testing|Testing]]