Populates an firebase database with the swapi data

index.js

'use strict';

let firebase = require('firebase-admin');
let axios = require('axios');
let serviceAccount = require('./auth.json');

firebase.initializeApp({
  credential: firebase.credential.cert(serviceAccount),
  databaseURL: 'https://react-quick-start.firebaseio.com'
});

let dbRef = firebase.database().ref()

function hasUrl (str) {
  return str.includes('http://')
}

function getAPIData(url, accumulator) {
  accumulator = typeof accumulator === 'undefined' 
    ? { data: [], url: url }
    : accumulator

  return new Promise((resolve, reject) => {
    axios
      .get(url)
      .then(res => res.data)
      .then(data => {
        accumulator.data = [].concat(
          accumulator.data,
          data.results
        )
        if(data.next != null) {
          resolve(getAPIData(data.next, accumulator))
        }
        else {
          resolve(accumulator)
        }
      })
      .catch(err => reject(err))
  })
}

return axios.get('http://swapi.co/api/')
.then(res => res.data)
.then(data => {
  return Object.keys(data)
    .map(key => data[key])
})
.then(urls => {
  let promises = urls.map(
    url => {
      let promise = getAPIData(url)
      promise.url = url
      return promise
    }
  )
  return Promise.all(promises)
})
.then(resData => {
  resData.forEach(urlData => {
    const stripedUrl = urlData.url
      .replace('http://swapi.co/api/', '')
      .replace('/', '')
    
    dbRef
      .child(stripedUrl)
      .set(urlData.data)
  })
})