Compute@Edge language SDKs

Compute@Edge runs any application compiled to WebAssembly, but we provide official support for several popular languages.

Choose the version number link below to view the full SDK reference for the language of your choice, or choose "more about {language}" to read about the core concepts and principles of using that language with Compute@Edge.

Rust logo
JavaScript logo
Go logo
Current SDK version0.
Core features
Dynamic compression ℹ️
Auto decompression ℹ️-
Environment variables ℹ️
Cache override ℹ️
Real time logging ℹ️
Edge dictionaries ℹ️see note 1
KV stores
Config stores
Secret stores
Fanout ℹ️
WebSockets passthrough ℹ️--
Dynamic backends-
Mutual TLS for origin fetch--
Pre-release features
Purging see note 2--
Backend health--
More about Rust »More about JavaScript »More about Go »
  1. Edge dictionaries are exposed in the Rust SDK using the ConfigStore interface
  2. Purging from edge code allows purge operations to be triggered when processing edge requests. Purging via our API is available regardless of which SDK is used.

Other language SDKs for Compute@Edge exist but are not supported by Fastly, and if you want to run a language we don't support, you are welcome to write your own SDK. For more information see Unofficial SDKs for Compute@Edge.