Levels Health (unofficial)

Unofficial JS API for Levels Health, mined using Charles proxy.

This API is not associated with Levels Health and you shouldn't bother them if this breaks due to their own API changes.

Installation

npm install --save levels-health-unofficial

yarn install levels-health-unofficial

Usage

const LevelsHealth = require('levels-health-unofficial')

// Class was used to hold `token` and constructors can't be async`
const levels = new LevelsHealth()

const email = '[email protected]'
const password = 'hunter2!'

// No need to save this, just useful if you want it. Their login method is AWS Cognito so
// this method could be handy utility when the API is expanded and this lib isn't update.
const jwtToken = await levels.login(email, password)

const beginQuery = dayjs().subtract(7, 'days').startOf()
const endQuery = dayjs.add(1, 'days').startOf()

const glucoseHistory = await levels.glucoseHistory(beginQuery, endQuery)

const {
  glucoseMetrics,
} = glucoseHistory

glucoseMetrics.values.forEach(console.log)

API

userData()

Fetch data of your account, pretty basic info

requestSensorRefresh()

Request that Levels re-fetch sensor data. Already automated so don't call this constantly.

findZones()

Fetch daily stats of glucose high-low and scores

Returns Promise of scores & glucose ranges

getSensorStatus()

Fetch status of current Libre sensor

metabolicFitnessStreaks(start, end)

Fetch metabolic fitness streaks

| name | type | description | -------|------|-------------| | start | Number | Range start, time since unix epoch in milliseconds | | end | Number | Range end, time since unix epoch in milliseconds |

Returns Promise of streaks of good glucose scores

heartRateMetrics(start, end)

Fetch heart rate metrics, presumably pulled from Apple Health

| name | type | description | -------|------|-------------| | start | Number | Range start, time since unix epoch in milliseconds | | end | Number | Range end, time since unix epoch in milliseconds |

Returns Promise of heart rate metrics

metabolicFitness(start, end)

Fetch daily metabolic fitness score

| name | type | description | -------|------|-------------| | start | Number | Range start, time since unix epoch in milliseconds | | end | Number | Range end, time since unix epoch in milliseconds |

Returns Promise of daily overall metabolic fitness score

getInsightFeed(start, end)

Fetch insight / news feed

| name | type | description | -------|------|-------------| | start | Number | Range start, time since unix epoch in milliseconds | | end | Number | Range end, time since unix epoch in milliseconds |

Returns Promise of insights / news feeds

glucoseHistory(start, end)

Fetch raw glucose scores of range

| name | type | description | -------|------|-------------| | start | Number | Range start, time since unix epoch in milliseconds | | end | Number | Range end, time since unix epoch in milliseconds |

Returns Promise of raw glucose scores along with stats