cdn.blueat.net Worker (AT Protocol Image CDN)#

Cloudflare Worker that acts as a drop-in style replacement for Bluesky image CDN endpoints by proxying image blobs directly from a user's Personal Data Server (PDS). It resolves the PDS endpoint from the DID (supports did:web: and did:plc:) and then fetches the requested blob.

Quick deploy (to your own Cloudflare account)#

Install Node.js (LTS).
From this folder, run:
- npm install
- npm run deploy
If prompted, run wrangler login (Wrangler stores your auth token locally).

The included wrangler.toml deploys with workers_dev = true (so it will be reachable under your Worker subdomain). To serve the real domain (cdn.blueat.net), update wrangler.toml with your route and zone_id.

Configuration#

In wrangler.toml, you can change:

PLC_DIRECTORY: base URL used to resolve did:plc: to a PLC document.
CACHE_MAX_AGE_SECONDS: value used for the Cache-Control: s-maxage=... header.

Local development#

npm run dev

Request format#

This worker expects paths like:

/img/{type}/plain/{did}/{cid}

Where {type} is typically avatar or banner. Example:

/img/avatar/plain/did:plc:exampleCid/ExampleImageCid

Notes#

Results are cached via caches.default and also include Cache-Control for downstream caching.
If the requested avatar/banner CID is missing, the worker tries to find the current CID from the profile record and retries once.

Configure Feed