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Use app environment variables for values that change between environments or should not be committed to code.

Goal

Store production configuration safely outside your source code.

When to use

Use this for database URLs, API keys, session secrets, and third-party credentials.

Common secrets

Update app environment variables

PUT /api/apps/:appId/env merges the submitted variables into the existing environment.

How it works

Hyze Cloud stores the variables with the app and injects them when the app starts. Restart the app after changing values used during startup.

Rotate an API key

1

Create a replacement key

2

Update your systems

Replace the old key in CI/CD, internal services, or any integration that calls Hyze Cloud.
3

Revoke the old key

A new API key value is shown only once. Store it immediately in your secret manager.

API keys

Create, update, disable, and revoke API keys.

Apps

Read and update app environment variables.
Last modified on July 17, 2026