opencollective/src/lib/fetchData.js

import chalk from 'chalk';
const utils = require('../lib/utils');
const debug = utils.debug;
const fetch = require('node-fetch');

const fetchStats = function(collectiveUrl) {
  const url = `${collectiveUrl}.json`;
  return fetch(url, { timeout: 1500 })
  .then(function(res) {
    return res.json();
  })
  .then(function(json) {
    return {
      currency: json.currency,
      balance: json.balance,
      yearlyIncome: json.yearlyIncome,
      backersCount: json.backersCount,
      contributorsCount: json.contributorsCount
    };
  })
  .catch(function(e) {
    const collectiveSlug = collectiveUrl.substr(collectiveUrl.lastIndexOf('/')+1);
    console.error(`${chalk.red(`[server error]`)} Cannot load the stats for ${collectiveSlug} – please try again later`);
    debug("Error while fetching ", url);
  });
}

const fetchBanner = function(slug) {
  const url = `https://opencollective.com/${slug}/banner.md`;
  return fetch(url)
    .then(function(res) {
      return res.text();
    })
    .catch(function(e) {
      debug("Error while fetching ", url);
    });
}

const fetchLogo = function(logoUrl) {
  if (!logoUrl.match(/^https?:\/\//)) {
    return "";
  }
  return fetch(logoUrl, { timeout: 1500 })
    .then(function(res) {
      if (res.status === 200 && res.headers.get('content-type').match(/^text\/plain/)) return res.text();
      else return "";
    })
    .catch(function(e) {
      debug("Error while fetching ", logoUrl);
    });
}

module.exports = {
  fetchLogo, fetchStats, fetchBanner
};