HTTP triggered Azure Function for getting Strava activities

HTTP-triggered-Azure-Function.js

const fetch = require("node-fetch");

module.exports = function (context, req) {
    const accessToken = context.bindings.inputTable.Value;
    const headers = {
        'Authorization': `Bearer ${accessToken}`
    };

    return getLatestActivity()
        .then(response => Promise.all([
            getActivityById(response.id),
            getAthleteStats()
        ]))
        .then(([activity, stats]) => {
            const returnObject = {
                id: activity.id,
                name: activity.name,
                distance: activity.distance,
                start_date: activity.start_date,
                moving_time: activity.moving_time,
                year_to_date_run_total_distance: stats.ytd_run_totals.distance,
                photoUrl: undefined
            };

            if (activity.photos.count > 0) {
                const photoUrls = Object.values(activity.photos.primary.urls);

                returnObject.photoUrl = photoUrls.pop();
            }

            return context.res.json(returnObject);
        });

    function getActivityById(activityId) {
        const url = `https://www.strava.com/api/v3/activities/${activityId}`;

        return fetch(url, { headers })
            .then(response => response.json());
    }

    function getLatestActivity() {
        const url = "https://www.strava.com/api/v3/athlete/activities?per_page=1";

        return fetch(url, { headers })
            .then(response => response.json())
            .then(response => response[0]);
    }

    function getAthleteStats(athleteId = 8353180) {
        const url = `https://www.strava.com/api/v3/athletes/${athleteId}/stats`;

        return fetch(url, { headers })
            .then(response => response.json());
    }
};