The synchronous /api/compile endpoint forced one long-lived HTTP request
to span the entire build. Cloudflare's 100s edge timeout cuts that off
mid-flight for any cold ESP-IDF compile (BMP280 takes 5-7 min on first
run). The user-visible symptom was HTTP 524 well before the backend
even noticed.
Backend (compile.py)
- New `POST /api/compile/start` returns `{job_id}` immediately and
spawns the actual compile as an asyncio.create_task background.
- New `GET /api/compile/status/{job_id}` returns the current job state
(`pending` | `running` | `done` | `error`). Each poll completes in
milliseconds, far under any edge timeout.
- Existing `POST /api/compile/` kept verbatim for backward compatibility
(AVR/RP2040 builds finish in seconds and don't trip 524).
- Build logic extracted into `_run_compile()` so both paths share one
implementation; no duplicated ESP-IDF / arduino-cli branching.
- Async path opens its own short-lived DB session via AsyncSessionLocal
for metric recording — the request-scoped session is dead by the time
the background task finishes.
- COMPILE_JOBS dict purges entries 30 minutes after completion so a
busy server doesn't grow unboundedly.
Frontend (compilation.ts)
- compileCode() now: POST /compile/start → poll /compile/status every 2s
until state ∈ {done, error}, with a 15-minute client-side cap.
- 30s axios timeout per individual call (not per build) so transient
network blips during a long compile auto-retry instead of failing.
- 404 on /status throws (job expired / server restarted); other poll
errors warn and retry. Surfaces structured error responses verbatim
so the editor's compile-error panel keeps working unchanged.
Limitation: COMPILE_JOBS lives in-process; if velxio ever scales to
multiple FastAPI workers this needs to move to Redis or sqlite. Single-
instance is fine today.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Cold ESP-IDF builds (esp32, esp32-c3, esp32-cam) routinely take 5-10
minutes the first time a project is compiled. The 180s axios timeout
on POST /api/compile/ was cutting the connection long before the
backend finished, surfacing as the misleading 'No response from
server. Is the backend running on port 8001?' error.
Bumping the client timeout to 600s aligns with the nginx
proxy_read_timeout (also 600s) so the chain end-to-end is consistent.
Arduino sketches still compile in seconds — the timeout is an upper
bound, not a delay.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Track per-user, per-project, and per-board usage to inform pricing tier
decisions. Adds an admin dashboard with KPIs (DAU/WAU/MAU, totals,
success rate), time-series charts for compiles/runs, board family +
FQBN breakdowns, "board diversity" pie chart (key freemium signal),
top users/projects, and per-country breakdown via Cloudflare's
CF-IPCountry header. Admin can now also view private projects.
Backend:
- New UsageEvent table (append-only event log with user_id, project_id,
event_type, board_fqbn/family, country, error_kind, duration_ms)
- Aggregate counters on User (total_compiles/runs/errors, last_active,
signup_country, last_country) and Project (compile/run/update counts,
last_compiled/run timestamps) kept in sync by MetricsService for O(1)
dashboard reads
- 10 admin endpoints under /api/admin/metrics/{overview, timeseries,
boards, board-diversity, top-users, top-projects, countries,
users/{id}, projects/{id}}
- POST /api/metrics/run for client-side run telemetry
- Country detection via cf-ipcountry header (no DB / no API calls)
- Auto-migrations in lifespan for legacy DBs
Frontend:
- recharts-powered Dashboard tab with KPI cards and 4 charts
- New Boards tab with per-family + per-FQBN breakdown
- Country column with flag emoji on Users tab
- Top countries card on Dashboard
- compileCode now forwards project_id; Run button reports via WS
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
- Modified the index file to reflect the new naming convention for Velxio components.
- Changed JSX declarations to use 'velxio-' prefix for various components.
- Updated component overrides to replace 'wokwi-' with 'velxio-' for logic gates and other components.
- Adjusted SVG generation script to use 'velxio-' prefix for BMP280 and Raspberry Pi components.
- Marked submodules as dirty in QEMU and RP2040 libraries.
- Added .prettierignore and .prettierrc.json for consistent code formatting.
- Introduced InstrumentComponent with support for Voltmeter and Ammeter, including pin information handling.
fix: increase timeout for compilation requests to 180 seconds
refactor: call recalculateAllWirePositions after loading examples
chore: update subproject commit for rp2040js to dirty state
chore: update subproject commit for wokwi-elements to dirty state
Frontend WiFi detection via file-content scanning was unreliable because
fileGroups[board.activeFileGroupId] could be an empty array (not null),
bypassing the ?? fallback to editorState.files.
Fix: the ESP-IDF compiler now returns has_wifi:bool in its compile response.
The frontend stores this on the BoardInstance and uses it in startBoard()
instead of scanning file contents. The file-content scan is kept as a
fallback for boards that haven't been compiled in this session.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add LoginPage and RegisterPage for user authentication.
- Create UserProfilePage to display user projects.
- Implement ProjectPage for viewing and editing individual projects.
- Introduce authService for handling user login, registration, and session management.
- Add projectService for managing project data retrieval and manipulation.
- Enhance EditorPage with file management capabilities and save prompts.
- Introduce Zustand stores for managing authentication, editor state, and project state.
- Add reserved usernames utility to prevent certain usernames during registration.
- Update compilation service to handle multiple files for Arduino sketches.
- Simplified serial data handling in `useSimulatorStore` for both AVR and RP2040 simulators.
- Introduced `boardPinMapping.ts` to map wokwi-element pin names to simulator GPIO/pin numbers for Arduino Uno and Nano RP2040.
- Added `compilationLogger.ts` to parse compile results into structured log entries for better console output.
- Added SimulatorCanvas component for rendering the simulator interface.
- Integrated Wokwi components (Arduino, LED, Resistor, Pushbutton, Potentiometer) into the simulator.
- Created PinManager to handle pin state changes and notifications.
- Developed AVRSimulator class for emulating Arduino Uno functionality.
- Implemented hex file loading and compilation service.
- Added CSS styles for the simulator interface.
- Established Zustand stores for managing editor and simulator states.
- Created utility functions for parsing Intel HEX format.
- Set up Vite configuration for the frontend project.
- Added batch scripts for starting backend and frontend servers, and updating Wokwi libraries.
davidmonterocrespo24
root