eriadam

// Option 1: Callback Hell
signIn(username: "Foo", password: "Bar") { user in
  self.sendWelcomeMailToUser(user) { _ in
    self.redirectToThankYouScreen() { _ in
      print("All done!")
    }
  }
}

// Option 2: Promises Chained

eriadam

#!groovy

pipeline {
  agent any

  stages {
    stage('Checkout') {
      steps {
        checkout scm
      }

eriadam

upstream jenkins {
  server 127.0.0.1:8080 fail_timeout=0;
}

server {
  listen 80;
  server_name jenkins.yourserver.com;
  return 301 https://$host$request_uri;
}

eriadam

└─┬ [email protected]
  ├─┬ [email protected]
  │ ├─┬ [email protected]
  │ │ └── [email protected]
  │ ├─┬ [email protected]
  │ │ ├─┬ [email protected]
  │ │ │ └── [email protected]
  │ │ ├── [email protected]
  │ │ ├─┬ [email protected]
  │ │ │ ├─┬ [email protected]

eriadam

/**
 * Having imported:
 *
 * bluebird.min.js
 * rx.js
 */

// Business Logic
async function doStuff() {
  // Get query from user

eriadam

async function doStuff() {
  // Load data from the client
  let data = await fetchDataFromDatabase(query);

  // Show results to user
  UI.update(data);
}

eriadam

function fetchDataFromDatabase(query) {
  
  // Calling iOS method here
  
  return new Promise((resolve, reject) => {
    
    // Timeout and reject.
    let timeoutId = setTimeout(() => reject(new Error('Timeout')), 3000);

    Rx

eriadam

function fetchDataFromDatabase(query) {
  
  // Calling iOS method here
  
  Rx
    .Observable
    .create(function subscribe(observer) {
      // This will be called by the iOS client
      didReceiveDataFromDatabase = function(data) {
        // Parse, process your data if needed.

eriadam

// Business Logic
function doStuff() {
  // Get query from user
  // Load data from DB
  // Show results to user
}

function fetchDataFromDatabase(query) {
  // Calling iOS method here
}

eriadam

import * as Express from 'express';
let app = Express();

import {Bootstrap} from './api/bootstrap';
new Bootstrap(app);