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Backend: - canvases table + owner-scoped CRUD under /admin/api/canvas (list/create/get/save/delete, 50 docs/user, 4MiB cap, JSON validation) Frontend: - /canvas full-screen workspace: DOM+CSS-transform infinite pan/zoom (GPU-composited world layer, viewport culling, rAF-batched pointer moves) - nodes: image (thumb display, natural-size correction), note (uncontrolled contenteditable), generation placeholder with edges - generate on canvas: prompt from panel or selected notes, selected image nodes as references, results auto-placed + bezier edges to sources - multi-canvas management, debounced autosave + keepalive flush, snapshot undo/redo (60 steps), marquee/keyboard interactions
Vivid AI Backend
Go backend for vivid-ai, using:
- Gin
- GORM
- PostgreSQL
- Redis
Current scope
This is an in-progress rewrite. The current skeleton already includes:
- app bootstrap
- PostgreSQL and Redis initialization
- GORM auto-migrations
- session storage in Redis
- image access control for
/images/:user/:name - public site endpoint:
/admin/api/site - public showcase endpoint:
/admin/api/showcase - session-based auth endpoint:
/admin/api/auth/me
Environment
Set these before running:
$env:POSTGRES_DSN="host=127.0.0.1 user=postgres password=postgres dbname=vivid_ai port=5432 sslmode=disable TimeZone=Asia/Shanghai"
$env:REDIS_ADDR="127.0.0.1:6379"
$env:HTTP_ADDR=":6061"
Optional:
$env:APP_ENV="development"
$env:APP_TITLE="Vivid AI"
$env:SESSION_COOKIE_NAME="vivid_session"
$env:CORS_ORIGINS="http://localhost:5173,http://127.0.0.1:5173"
Run
go run ./cmd/api
Notes
- Generated media defaults to
../../ai-gateway/data/generatedrelative to the backend working directory. - Private images require either:
- session cookie
- bearer session token
- bearer API key
- Showcase images are public.