app-store-scraper/lib/app.js

scrape data from the itunes app store

'use strict';

const common = require('./common');
const ratings = require('./ratings');

function app (opts) {
  return new Promise(function (resolve) {
    if (!opts.id && !opts.appId) {
      throw Error('Either id or appId is required');
    }
    const idField = opts.id ? 'id' : 'bundleId';
    const idValue = opts.id || opts.appId;
    resolve(common.lookup([idValue], idField, opts.country, opts.lang, opts.requestOptions, opts.throttle));
  })
    .then((results) => {
      if (results.length === 0) {
        throw Error('App not found (404)');
      }

      const result = results[0];

      if (opts.ratings) {
        if (!opts.id) { opts.id = result.id; }
        return ratings(opts).then((ratingsResult) => Object.assign({}, result, ratingsResult));
      }

      return result;
    });
}

module.exports = app;