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alexmcroberts

cratewalk-loggedin

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main.http.ts
README.md

loggedin.fyi Val Town demos

Two AT Proto client demos that share one login workflow and both talk to the loggedin.fyi Cloudflare Worker.

They must be two origins. Logging into Lightbox heartbeats a DID; Cratewalk can then offer that account as a normal OAuth hint.

Rendering mermaid diagram...
DemoHTTP filePlanned subdomainAfter login
A · Lightboxlightbox.tslightbox-loggedin.val.runImages from the current feed, plus a feed picker
B · Cratewalkcratewalk.tscratewalk-loggedin.val.runPosts arrive in Habbo-style boxes on a half-width conveyor

Deploy as two vals

Copy this folder into two Val Town vals (or remix twice). Mark lightbox.ts as the HTTP trigger in one and cratewalk.ts in the other.

Claim kebab-case subdomains:

  • lightbox-loggedin
  • cratewalk-loggedin

If a name is taken, add a random 1–100 suffix and update allowlist.json.

Environment variables

Each val needs a cookie secret of at least 32 characters:

👉 Add COOKIE_SECRET here: https://www.val.town/x/HANDLE/VAL_NAME/environment-variables?key=COOKIE_SECRET

Optional:

👉 Add PUBLIC_BASE_URL here: https://www.val.town/x/HANDLE/VAL_NAME/environment-variables?key=PUBLIC_BASE_URL

👉 Add LOGGEDIN_ORIGIN here: https://www.val.town/x/HANDLE/VAL_NAME/environment-variables?key=LOGGEDIN_ORIGIN

👉 Add SISTER_APP_URL here: https://www.val.town/x/HANDLE/VAL_NAME/environment-variables?key=SISTER_APP_URL

KeyDefaultNotes
COOKIE_SECRET—Required. 32+ random characters.
PUBLIC_BASE_URLrequest originSet to https://lightbox-loggedin.val.run (or Cratewalk) after the subdomain is claimed. This is the OAuth client_id origin.
LOGGEDIN_ORIGINhttps://loggedin.fyiUse http://localhost:8787 against a local Worker.
SISTER_APP_URLunsetThe other demo’s URL, for the header link.

Replace HANDLE/VAL_NAME with each val after it exists.

Allowlist

Add both production origins to the Worker allowlist before the embed can heartbeat or list accounts. The repo already has:

  • https://lightbox-loggedin.val.run
  • https://cratewalk-loggedin.val.run

If you use generated *.web.val.run URLs, put those origins in allowlist.json and redeploy the Worker.

Local UI preview

node val-town/preview/serve.mjs

Then open http://localhost:4173/?authed=1 (Lightbox) and http://localhost:4174/?authed=0 (Cratewalk login). Preview talks to https://loggedin-fyi.polished-bird-a3ae.workers.dev unless LOGGEDIN_ORIGIN is set.

After login

Both apps:

  1. Show a handle field and Sign in with Bluesky (GET /login?handle=… → PDS OAuth).
  2. Embed LOGGEDIN_ORIGIN/embed and render hinted DIDs from the Worker.
  3. Heartbeat the signed-in DID (Chrome silent path). On Safari / iOS, heartbeat() opens a first-party /save window; /enroll remains as a fallback.
  4. Fetch the home timeline or a picked generator through the user’s PDS (atproto-proxy to the Bluesky AppView).