strava-geojson/index.js

pull strava runs and convert them to geojson

var geojsonStream = require('geojson-stream'),
    filter = require('through2-filter').obj,
    through2 = require('through2').obj;

var xhr = require('./lib/xhr.js'),
    convert = require('./lib/convert.js'),
    Source = require('./lib/source');

function loadRuns(STRAVA_TOKEN) {
    return (new Source({ STRAVA_TOKEN: STRAVA_TOKEN }))
        .pipe(through2(function(chunk, enc, callback) {
            this.emit('debug', 'pushing ' + chunk.length + ' runs into stream');
            chunk.forEach(function(c) {
                this.push(c.id);
            }.bind(this));
            callback();
        }))
        .pipe(through2(function(id, enc, callback) {
            xhr.getActivity(STRAVA_TOKEN, id, function(err, res) {
               if (err) console.error(err);
               // purposely avoid throwing on errors
               callback(null, res);
           });
        }))
        .pipe(filter(Array.isArray))
        .pipe(through2(function(chunk, enc, callback) {
            var converted = convert(chunk);
            callback(null, converted);
        }))
        .pipe(geojsonStream.stringify());
}

module.exports = loadRuns;