Environment Variables

The following basic examples show how to work with environment variables. Deno provides support for environment variables natively. The Deno.env object provides methods to get, set, delete, and list environment variables.

Add an environment variable

To add an environment variable, go to Project Settings > Environment Variables and fill in the key/value fields. A new production deployment will be created with the updated environment variables.

Preset Environment Variables

Netzo will inject a set of default environment variables to the project at runtime.

{  "DENO_REGION": "europe-west9",  "DENO_DEPLOYMENT_ID": "63be692a877dce879a4604bd-63bf3ad110ea82bec8916dd1"}

Runtime Environments

Netzo supports three runtime environments for projects. production and preview environments will share the same environment variables which can be set directly in the project settings in Netzo. For development netzo will auto-inject environment variables set for the project's development environment (provided you have a valid netzo.config file). You also have the option of loading them from a .env file or passing them as command line arguments, however, this is more work and managing all 3 environments from within netzo is recommended.

• Production: https://{uid}.deno.dev
• Preview: https://{uid}-{deploymentId}.deno.dev
• Development: https://localhost:PORT

Deno.env.get()

Get the value of an environment variable. Returns undefined if the variable is not defined.

const name = Deno.env.get('NAME')

Deno.env.set()

Set the value of an environment variable.

Deno.env.set('NAME', 'John')

Deno.env.toObject()

Get a copy of the environment variables as an object.

const env = Deno.env.toObject()

Deno.env.delete()

Unset the value of an environment variable.

Deno.env.delete('NAME')