# Step 1: Direct user to consent screen
open "https://api.ketogluc.com/oauth/authorize?response_type=code&client_id=YOUR_CLIENT_ID&redirect_uri=https%3A%2F%2Fmyapp.com%2Fcallback&scope=read:glucose read:ketone"

# Step 2: Exchange the code for an access token
curl -X POST https://api.ketogluc.com/oauth/token \
  -d grant_type=authorization_code \
  -d code=AUTHORIZATION_CODE_FROM_STEP1 \
  -d redirect_uri=https://myapp.com/callback \
  -u YOUR_CLIENT_ID:YOUR_CLIENT_SECRET

curl -H "Authorization: Bearer ACCESS_TOKEN" \
     https://api.ketogluc.com/v1/users/me/measurements?limit=50

{
  "measurements": [
    {
      "timestamp": "2026-08-24T14:32:10Z",
      "glucose_mgdl": 112,
      "ketone_mmol": 0.68,
      "signal_quality": "good"
    },
    …
  ]
}

const ws = new WebSocket('wss://stream.ketogluc.com/v1/stream?access_token=ACCESS_TOKEN');

ws.onmessage = (event) => {
  const data = JSON.parse(event.data);
  // Example: trigger an alert when glucose > 180 mg/dL AND ketone < 0.4 mmol/L
  if (data.glucose_mgdl > 180 && data.ketone_mmol < 0.4) {
    notifyUser('High glucose, low ketone – consider insulin dose.');
  }
};

ws.onerror = (err) => console.error('WebSocket error', err);

import sqlite3
from cryptography.fernet import Fernet

# Generate a key once and store it in the OS keychain
key = Fernet.generate_key()
cipher = Fernet(key)

conn = sqlite3.connect('ketogluc_local.db')
c = conn.cursor()
c.execute('''CREATE TABLE IF NOT EXISTS measurements
             (ts TEXT PRIMARY KEY, glucose INTEGER, ketone REAL, payload BLOB)''')

def save_measurement(ts, glucose, ketone, raw_json):
    encrypted = cipher.encrypt(raw_json.encode())
    c.execute('INSERT OR REPLACE INTO measurements VALUES (?,?,?,?)',
              (ts, glucose, ketone, encrypted))
    conn.commit()

import React, { useEffect, useState } from 'react';
import { Line } from 'react-chartjs-2';
import axios from 'axios';

export default function GlucoseKetoneChart({ token }) {
  const [data, setData] = useState({ glucose: [], ketone: [], labels: [] });

  useEffect(() => {
    async function fetchData() {
      const res = await axios.get(
        'https://api.ketogluc.com/v1/users/me/measurements?hours=24',
        { headers: { Authorization: `Bearer ${token}` } }
      );
      const glucose = [], ketone = [], labels = [];
      res.data.measurements.forEach(m => {
        labels.push(new Date(m.timestamp).toLocaleTimeString());
        glucose.push(m.glucose_mgdl);
        ketone.push(m.ketone_mmol);
      });
      setData({ glucose, ketone, labels });
    }
    fetchData();
  }, [token]);

  const chartData = {
    labels: data.labels,
    datasets: [
      {
        label: 'Glucose (mg/dL)',
        data: data.glucose,
        borderColor: 'rgba(255,99,132,1)',
        yAxisID: 'y1',
      },
      {
        label: 'Ketone (mmol/L)',
        data: data.ketone,
        borderColor: 'rgba(54,162,235,1)',
        yAxisID: 'y2',
      },
    ],
  };

  const options = {
    scales: {
      y1: { type: 'linear', position: 'left', title: { display: true, text: 'Glucose' } },
      y2: { type: 'linear', position: 'right', title: { display: true, text: 'Ketone' } },
    },
  };

  return <Line data={chartData} options={options} />;
}