Simple metrics server for g3. Provides an example of fake time series to drive the G3 example gauges, along with a stub to plug in your real simulator metrics.
Either use conda to create a local python environment via:
conda env update -f environment.yml
or manually install python3 and install dependencies:
pip install fastapi uvicorn aiofiles
Create your panel HTML file for G3 within the panels folder,
and specify a panel URL like /metrics/fake.json (or modify metricshub.py appropriately).
For instance, a minimal panel would look like ./panels/panel.html containing:
<html>
<body>
<script src="https://unpkg.com/@patricksurry/g3/dist/g3-contrib.min.js"></script>
<script>
g3.panel()
.interval(250)
.url('/metrics/fake.json') // .url('/metrics/xplane.json')
.append(
g3.put().x(128).y(192).scale(0.9).append(g3.contrib.nav.airspeed.DHC2()),
g3.put().x(384).y(192).scale(0.9).append(g3.contrib.nav.attitude.generic()),
g3.put().x(640).y(192).scale(0.9).append(g3.contrib.nav.altitude.generic()),
g3.put().x(896).y(192).scale(0.9).append(g3.contrib.radionav.VOR.generic()),
g3.put().x(128).y(448).scale(0.9).append(g3.contrib.nav.turnCoordinator.generic()),
g3.put().x(384).y(448).scale(0.9).append(g3.contrib.nav.heading.generic()),
g3.put().x(640).y(448).scale(0.9).append(g3.contrib.nav.VSI.generic()),
g3.put().x(896).y(448).scale(0.9).append(g3.contrib.radionav.ADF.generic()),
)
('body');
</script>
</body>
</html>Start the server:
uvicorn metricshub:app --host 0.0.0.0 --reload
Point your web browser at your panel:
http://localhost:8000/panels/panel.html
You should see a flight control panel with randomly varying metrics, and confirm the server is serving the metrics in the log output:
INFO: 127.0.0.1:49330 - "GET /g3/index.html HTTP/1.1" 200 OK
INFO: 127.0.0.1:49330 - "GET /metrics/fake.json HTTP/1.1" 200 OK
INFO: 127.0.0.1:49330 - "GET /metrics/fake.json HTTP/1.1" 200 OK
INFO: 127.0.0.1:49330 - "GET /metrics/fake.json HTTP/1.1" 200 OKOn Windows you may need to open the port, e.g.
netsh advfirewall firewall add rule name="TCP Port 8000" dir=in action=allow protocol=TCP localport=8000
you can remove the rule with
netsh advfirewall firewall delete rule name="TCP Port 8000" protocol=TCP localport=8000
Run tests from top level as:
python -m pytest
Clear local chromium cache headless:
sudo rm -R /home/pi/.cache/chromium
sudo rm -R /home/pi/.config/chromium