1cbc1e962b
Users couldn't see Excalidraw's built-in Save as / Export image options:
the app's custom toolbar was drawn exactly on top of the native hamburger
menu button, hiding it. Removed the overlay and integrated Back to
Library / Save now / Rename into the native menu, so the native export
formats (.excalidraw file, PNG, SVG, clipboard) are now reachable.
Viktor asked for exports to work via the native Excalidraw feature and
for drawings to be renameable by clicking their name.
Rename: new PATCH /api/drawings/{id} endpoint (server-side name
sanitization, 409 on conflict) + click-to-rename title pill in the
editor (updates URL in place) + Rename button/modal in the dashboard.
Existing GET/PUT/DELETE semantics unchanged for API compatibility
(emo's upload pipeline). Added main_test.go (httptest) covering rename
+ existing handler behavior; dashboard rows now DOM-built (XSS-safe).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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| .. | ||
| static | ||
| .gitignore | ||
| Dockerfile | ||
| go.mod | ||
| main.go | ||
| main_test.go | ||
| README.md | ||
Excalidraw Rooms
A self-hosted Excalidraw library with per-user drawing storage and management.
Features
- Dashboard to manage all your drawings (create, open, rename, delete)
- Per-user storage (via Authentik SSO headers)
- Rename drawings from the dashboard or by clicking the drawing name in the editor
- Native Excalidraw export via the editor's hamburger menu: "Save to..." (.excalidraw file) and "Export image..." (PNG / SVG / clipboard)
- Autosave (2s debounce) + manual save (Ctrl+S or menu "Save now")
- Persistent storage via NFS
Docker Image
ghcr.io/viktorbarzin/excalidraw-library:latest
Built by GitHub Actions (.github/workflows/build-excalidraw.yml in the infra
repo, ADR-0002) on every master push touching stacks/excalidraw/project/**;
tags :latest + :<git-sha>. The package is PRIVATE — cluster pulls use the
Kyverno-synced ghcr-credentials secret. Keel polls :latest and rolls the
deployment on digest change.
The legacy manually-built DockerHub image viktorbarzin/excalidraw-library:v4
is frozen as the rollback target; nothing pushes to it anymore.
Configuration
Environment Variables
| Variable | Default | Description |
|---|---|---|
DATA_DIR |
/data |
Directory where drawings are stored |
PORT |
8080 |
HTTP server port |
Storage
Mount a persistent volume to the DATA_DIR path. Drawings are stored as .excalidraw files, organized by username:
/data/
├── user1/
│ ├── drawing1.excalidraw
│ └── drawing2.excalidraw
└── user2/
└── my-diagram.excalidraw
The filename (without extension) is both the drawing ID and its display name;
renaming a drawing renames the file (os.Rename, mtime preserved).
Deployment
Deployed by the stacks/excalidraw Terraform stack (namespace excalidraw,
service draw, ingress draw.viktorbarzin.me with auth = "required").
With Authentik SSO
The application reads user identity from Authentik headers:
X-Authentik-Username- Used to create per-user storage directoriesX-Authentik-Email- Displayed in UIX-Authentik-Name- Displayed in UI
Requests without X-Authentik-Username fall back to the anonymous user.
API Endpoints
| Method | Path | Description |
|---|---|---|
| GET | / |
Dashboard UI |
| GET | /api/drawings |
List all drawings for current user |
| GET | /api/drawings/:id |
Get drawing data |
| PUT | /api/drawings/:id |
Save drawing |
| PATCH | /api/drawings/:id |
Rename drawing — body {"name": "<new-name>"}; returns {"status":"renamed","id":"<new-id>"}; 409 if the target name exists |
| DELETE | /api/drawings/:id |
Delete drawing |
| GET | /api/user |
Get current user info |
| GET | /draw/:id |
Open drawing in editor |
Rename names are sanitized server-side to [a-zA-Z0-9-_] (other characters
become -; a trailing .excalidraw is stripped). Existing IDs are accepted
as-is for backward compatibility with API clients.
Development
# Run tests
go test ./...
# Run locally
DATA_DIR=/tmp/excalidraw-data go run .
License
MIT