Read environment variables

Access the current environment variables with process.env.

index.ts

process.env.API_TOKEN; // => "secret"

Bun also exposes these variables as Bun.env, an alias of process.env.

index.ts

Bun.env.API_TOKEN; // => "secret"

To print all currently-set environment variables, run bun --print process.env.

terminal

bun --print process.env

ProcessEnv {
  BAZ: "stuff",
  FOOBAR: "aaaaaa",
  <lots more lines>
}