server + getting sensor id + json in esp32

server/seed.py

@@ -0,0 +1,63 @@
+"""Seed the database with sample sensor data."""
+
+import random
+from datetime import datetime, timedelta, timezone
+
+from app import create_app
+from models import Sensor, SensorReadout, db
+
+
+def seed():
+    app = create_app()
+    with app.app_context():
+        sensors = [
+            Sensor(name="outdoor-station"),
+            Sensor(name="indoor-unit"),
+            Sensor(name="greenhouse-probe"),
+        ]
+        db.session.add_all(sensors)
+        db.session.flush()
+
+        types = ["temperature", "pressure", "humidity"]
+        base_time = datetime.now(timezone.utc) - timedelta(seconds=30 * 300)
+
+        readouts = []
+        for sensor in sensors:
+            t = base_time
+            for i in range(300):
+                readouts.append(
+                    SensorReadout(
+                        sensor_id=sensor.id,
+                        type="temperature",
+                        value=round(random.uniform(18.0, 28.0), 2),
+                        timestamp=t,
+                    )
+                )
+                readouts.append(
+                    SensorReadout(
+                        sensor_id=sensor.id,
+                        type="pressure",
+                        value=round(random.uniform(1008.0, 1018.0), 2),
+                        timestamp=t,
+                    )
+                )
+                readouts.append(
+                    SensorReadout(
+                        sensor_id=sensor.id,
+                        type="humidity",
+                        value=round(random.uniform(35.0, 65.0), 2),
+                        timestamp=t,
+                    )
+                )
+                t += timedelta(seconds=30)
+
+        db.session.add_all(readouts)
+        db.session.commit()
+
+        sensor_count = Sensor.query.count()
+        readout_count = SensorReadout.query.count()
+        print(f"Seeded {sensor_count} sensors and {readout_count} readouts.")
+
+
+if __name__ == "__main__":
+    seed()