Export a Fitbit dump (exercise-*.json files) to Strava

main.js

// yarn add strava-v3 glob-promise glob lodash
const strava = require('strava-v3');
const glob = require("glob-promise")
const _ = require("lodash")

strava.config({
  client_id: "",
  client_secret: "",
  redirect_uri: "http://localhost/callback",
})

const activityNames = {
  'Natation': 'Swim',
  'Aérobic': 'Workout',
  'Exercice d\'aérobie': 'Workout',
  'Faire du surf, du bodysurf': ' Surfing',
  'Jogging': 'Run',
  'Musculation': 'Workout',
  'Vélo d\'appartement': 'Ride',
  'Vélo': 'Ride',
  'Yoga, Ashtanga': 'Yoga',
}

function toStravaActivity (activity) {
  return {
    name: activityNames[activity.activityName],
    type: activityNames[activity.activityName],
    start_date_local: new Date(activity.startTime).toISOString(),
    elapsed_time: activity.duration / 1000, // In seconds
    description: 'Imported from Fitbit',
    distance: activity.distance * 1000, // To meters
    access_token: "",
  }
}

async function createActivityOnStrava (activity, thottle = 1e4) {
  try {
    const { name, id, start_date } = await strava.activities.create(activity)
    console.log(`↳ ${name} on ${start_date}: https://www.strava.com/activities/${id}`)
  } catch(error) {
    if (error.statusCode === 429) {
      throw new Error('Creation stop: reached rate limit.')
    }
    console.error(error.statusCode, error.error.message)
  } finally {
    await new Promise(resolve => setTimeout(resolve, thottle))
  }
}

async function main () {
  const minDate = new Date('2018-03-11T11:53:34Z')
  const files = await glob('exercise-*.json')
  const activities = _.chain(files)
    // Read all JSON
    .reduce((all, file) => {
      const set = require(`./${file}`)
      return all.concat(set)
    }, [])
    // Filter only valid types
    .filter(({ activityName }) => {
      return activityName in activityNames
    })
    // Filter only activity avec a certain data
    .filter(({ startTime }) => {
      return new Date(startTime).getTime() > minDate.getTime()
    })
    // Convert to strata activity format
    .map(toStravaActivity)
    .value()

  for (const index in activities) {
    console.log(`Importing activity ${1 + Number(index)}/${activities.length}:`)
    await createActivityOnStrava(activities[index])
  }
}

main()