---
title: Read environment variables
summary: Read values from Fastly-defined env vars in Compute programs.
url: https://www.fastly.com/documentation/solutions/examples/read-environment-variables
---

Read values from Fastly-defined env vars in Compute programs.

## Compute

### Rust

[Try it in Fastly Fiddle](https://fiddle.fastly.dev/39739ff4)

### Javascript

[Try it in Fastly Fiddle](https://fiddle.fastly.dev/e6f45e8b)

### Go

[Try it in Fastly Fiddle](https://fiddle.fastly.dev/19b95f86)