Transform Images with Wasm in a Cloudflare Worker

Prototype demonstrating running image resizing and other transforms completely inside a Cloudflare Worker.

Sample input images come from Unsplash Open external link .

Source is available in the Denoflare repo Open external link .

​ Deploy it to your own account

Since it is a standard module-based Cloudflare Worker, you can deploy it like any other worker with denoflare push:

First, register a new app with Unsplash (free), you'll need your app name and ixid as worker environment vars, to comply their TOS.

denoflare push --name image-demo \
    https://raw.githubusercontent.com/skymethod/denoflare/v0.6.0/examples/image-demo-worker/worker.ts \
    --text-binding unsplashAppName:your_app_name \
    --text-binding unsplashIxid:your_ixid

​ Host it locally

Since it is a standard module-based Cloudflare Worker, you can run it locally like any other worker with denoflare serve:

First, register a new app with Unsplash (free), you'll need your app name and ixid as worker environment vars, to comply their TOS.

denoflare serve \
    https://raw.githubusercontent.com/skymethod/denoflare/v0.6.0/examples/image-demo-worker/worker.ts
    --text-binding unsplashAppName:your_app_name \
    --text-binding unsplashIxid:your_ixid