-
Notifications
You must be signed in to change notification settings - Fork 0
/
js4j-p2.yaml
2083 lines (1874 loc) · 66.4 KB
/
js4j-p2.yaml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
---
title: JavaScript For Java Developers (part 2)
trainersSecret: 123asd2
slides:
- id: opening
name: Hello World
title: JavaScript 4 Java Devs - part 2
left:
text: |
<h3>
Hello <span class="user-name"></span>!
</h3>
<h2>
<a href="http://devmeetings.pl"><img src="http://devmeetings.pl/assets/logo-18db74aab9d40e85fddffe7608edd756.jpg"></a>
rocks!
</h2>
code:
small: true
hideOutput: true
content: |
var username = localStorage.getItem('name');
while (!username) {
username = prompt("Please provide your name");
}
localStorage.setItem('name', username);
document.querySelector('.user-name').innerText = username;
right:
text:
>
<div class="text-center">
<a href="http://pl.tinypic.com?ref=oa2mbk" target="_blank">
<img src="http://i39.tinypic.com/oa2mbk.png" alt="Image and video hosting by TinyPic" width="400">
</a>
</div>
notes: |
What will we learn today:
- Advanced JS
- Introduction to Express.js
- Teasers for other features:
- JS Frameworks
- Even more advanced JS
script: &trainingStats |
var $checkbox = $('.training-checkbox');
var username = localStorage.getItem('name');
var training = $checkbox.data('training');
$checkbox.bind('change', function(){
var training = $(this).data('training');
var state = this.checked;
localStorage.setItem('training-'+training, state);
$.ajax({
method: 'POST',
url: 'http://todr.me:3002/trainings',
data: {
user: username,
currentTraining: 'js4j-p2',
training: training,
isGoing: state
}
});
});
$checkbox.attr('checked', !!localStorage.getItem('training-'+training));
- id: ready
name: Ready
title: Ready?
microtasks:
- description: Say that you are ready!
hint: Change value of <code>ready</code> to <code>true</code>
js_assert:
ready === true
code:
small: true
hideOutput: true
content: |
var ready = false;
# TODO: small reminder about JS
- id: js-reminder
name: JS Reminder
title: JavaScript - Quick reminder
microtasks:
- description: Change selector of <code>$todosContainer</code> to it's <code>id</code> attribute
hint: Change <code>.todos</code> selector to id selector <code>#todos</code>
js: |
querySelector\(['"]#todos-id['"]\);
- description: Add <code>h1</code> header with <code>text-success</code> class
hint: Add <code><h1 class="text-success"></code> somewhere in HTML
html: |
h1\s+class="text-success"
fiddle:
big: true
js: |
var todos= [
{ title: "Completed first part of JS4J", completed: true },
{ title: "Completed second part of JS4J", completed: false }
];
var $todos = todos.map(function(todo) {
var $todo = document.createElement('label');
$todo.className = 'list-group-item';
var $checkbox = document.createElement('input');
$checkbox.type = 'checkbox';
$checkbox.checked = todo.completed;
$checkbox.addEventListener('change', function() {
todo.completed = $checkbox.checked;
console.table(todos);
});
$todo.appendChild($checkbox);
$todo.appendChild(document.createTextNode(todo.title));
return $todo;
});
var $todosContainer = document.querySelector('.todos');
$todos.map($todosContainer.appendChild.bind($todosContainer));
html: &htmlTodos |
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Todos</title>
<link rel="stylesheet" href="css/bootstrap.css">
</head>
<body>
<!-- page content -->
<div class="todos list-group" id="todos-id"></div>
<script src="//code.jquery.com/jquery.js"></script>
<script src="js/bootstrap.js"></script>
</body>
</html>
- id: task-js
name: Task 1
title: Task - Facebook stream
task:
duration: 40
objectives:
- Display stream of posts using DOM elements
- Add <span class="glyphicon glyphicon-thumbs-up"></span> Like support
extras:
- Adding new posts
- Comments support
solution:
fiddle:
big: true
active: js
html: *htmlTodos
js: |
var element = function(tag) {
var data = tag.split('.');
var e = document.createElement(data[0]);
e.className = data.slice(1).join(' ');
return e;
};
var text = function(t) {
return document.createTextNode(t);
};
var appendTo = function($to) {
return function(/* args */) {
[].slice.call(arguments).filter(function(el){
return el instanceof Node;
}).map($to.appendChild.bind($to));
return $to;
};
};
var todos= [
{ title: "Completed first part of JS4J", likes: 0, comments: [{
title: "First comment",
likes: 10
}]},
{ title: "Completed second part of JS4J", likes: 20, comments: [] }
];
var $todos = todos.map(function createPost(post) {
var $todo = element('div.well');
var $like = element('a.pull-right');
$like.href = "#";
$like.addEventListener('click', function() {
post.likes++;
$value.innerHTML = post.likes;
});
var $value = element('span.badge');
$value.innerHTML = post.likes;
var $icon = element('span.glyphicon.glyphicon-thumbs-up');
appendTo($like)($icon, text(' '), $value);
appendTo($todo)($like, text(post.title));
if (post.comments && post.comments.length) {
var $subcomments = element('div');
appendTo($todo)(element('hr'), $subcomments);
post.comments.map(createPost).map(appendTo($subcomments));
}
return $todo;
});
var $todosContainer = document.querySelector('.todos');
$todos.map(appendTo($todosContainer));
- id: contexts1
name: Contexts
title: Reusability of methods
monitor: TodosModel._todos
code: |
var TodosModel = {
_todos: [],
addTodo: function(title) {
TodosModel._todos.push({
title: title,
completed: false
});
}
};
TodosModel.addTodo("New todo");
microtasks:
- description: Change access to <code>_todos</code> using <code>this</code>
hint: Substitute <code>TodosModel._todos</code> with <code>this</code>
js: |
this\._todos.push
notes: |
Remind about reusability matter that we have been talking about earlier.
Change TodosModel to "this" in this snippet and explain similarity to Java
- id: contexts2
name: Contexts
title: Contexts - caveats
microtasks:
- description: <code>adder1</code> should add <code>3</code> instead of <code>5</code>
hint: Change <code>b:3</code> in <code>adder1</code>
js_assert: |
adder1.b === 3
- description: Borrow <code>add</code> function from <code>adder1</code> to <code>adder2</code>
hint: Assign <code>adder1.add</code> to <code>adder2.add</code>
js_assert: |
adder1.add === adder2.add
monitor: results
code:
big: true
content: |
var results = [];
var adder1 = {
b: 5,
add: function(a) {
return a + this.b;
}
};
results.push(
adder1.add(10)
);
var adder2 = {
b: 7
};
notes: |
// Remind that value is resolved during execution - same is with `this` keyword.
// Try to ask how JS knows what should `this` be resolved to?
// Add this code
//Borrow function
adder2.add = adder1.add;
results.push(
adder2.add(10)
);
- id: contexts3
name: Contexts
title: Contexts - more caveats
microtasks:
- description: Assign <code>7</code> to global variable <code>b</code>
hint: <code>window.b = 7</code>
js_assert: |
window.b === 7
monitor: result
code: |
var adder1 = {
b: 5,
add: function(a) {
return a + this.b;
}
};
var justAdd = adder1.add;
var result = "Result is " + justAdd(10);
notes: |
// Now ask if someone understands what happened:)
// Introduce more confusement by writing
window.b = 7
// Explain what global scope is and that `this` is set to global scope if none can be found.
- id: contexts4
name: Contexts
title: Contexts - even more caveats
microtasks:
- description: Bind context of increment using <code>bind</code> method
hint: <code>State.increment.bind(State)</code>
js: |
State\.increment\.bind\(State\)
fiddle:
hideOutput: true
big: true
js: |
var $btn = document.querySelector('.increment-btn');
var $output = document.querySelector('.increment-output');
var State = {
i: 0,
increment: function() {
this.i++;
console.log(this.i, State.i);
$output.innerHTML = "this.i=" + this.i + " | State.i=" + State.i;
}
};
State.increment();
$btn.addEventListener('click', State.increment);
document.body.appendChild($btn);
html: |
<html>
<head></head>
<body>
<h1 class="increment-output"></h1>
<button class="btn btn-default increment-btn">
Increment
</button>
</body>
</html>
notes: |
// Now ask if someone understands what happened:)
// Propose to
console.log(this)
// to check in which context are we
// refactor this to sth like
var incr = State.increment;
$btn.addEventListener('click', incr);
// to make it clear that we have lost context of execution
// Ask for possible fixes:
// 1. Wrapping in anonymous function
// 2. Use `bind` function
- id: contexts5
name: Contexts
title: Invoking function in specific context
microtasks:
- description: Invoke <code>increment</code> function in context of <code>result</code> with argument <code>"test"</code>
hint: <code>increment.call(ctx, arg)</code> where <code>ctx === result</code> and <code>arg === "test"</code>
js: |
increment\.call\(result\s*,\s*['"]test['"]\)
- description: Fix context of <code>increment</code> to itself.
hint: <code>increment.bind(increment)</code>
js: |
increment\.bind\(increment\)
monitor: result
code:
big: true
content: |
var result = [];
var State1 = {
name: 'State 1'
};
var State2 = {
name: 'State 2'
};
var increment = function(arg1) {
result.push("Invoking in context of " + this.name + " with argument " + arg1);
};
increment.call(State1, "arg1");
increment.apply(State2, ["arg2"]);
var fixedContext = increment.bind(State1);
fixedContext("arg1");
fixedContext.call(State2, "arg2");
notes: |
1. Describe differences between `call` and `apply`
2. Make sure that everyone notices that after binding context .call (and .apply) doesn't matter
- id: contexts6
name: Contexts
title: Other applications of <code>bind</code>
microtasks:
- description: Create adder of 6 and name it <code>add6</code>
hint: use <code>add.bind("add6", 6)</code>
js_assert: |
add6(5) === 11
- description: Create function that always returns result of <code>3+2</code> and call it <code>five</code>
hint: You can bind both arguments like <code>add.bind("five", 3, 3)</code>
js_assert: |
five() === 5
monitor: result
code:
big: true
content: |
var result = [];
var add = function(a, b) {
var sum = a + b;
result.push(
a + " + " + b + " = " + sum + " in context of: " + this
);
return sum;
};
add(3, 4);
var add3 = add.bind("add3", 3);
add3(4);
notes: |
Point out that everything can be used as context (even other function)
Explain that using `bind` we can create partially applied functions.
- id: context7
name: Contexts
title: Contexts and functional-style
microtasks:
- description: Refactor the code to use <code>forEach</code>
hint: Invoke <code>todos.forEach</code>
js: |
todos\.forEach\(
monitor: TodosView._results
code:
big: true
content: |
var TodosView = {
_results: [],
renderAllTodos: function(todos) {
for (var k in todos) {
this.renderTodo(todos[k]);
}
},
renderTodo: function(todo) {
this._results.push("Rendering todo " + todo);
}
};
TodosView.renderAllTodos(["Todo 1", "Todo 2"]);
notes: |
// 1. Propose to jointly refactor for-in loop to functional style.
// 2. Show how easy it is to break context.
// Try two solutions:
renderAllTodos: function(todos) {
todos.forEach(function(todo) {
this.renderTodo(todo);
}, this);
},
// 2
renderAllTodos: function(todos) {
todos.map(this.renderTodo.bind(this));
}
// And show that we break two different contexts.
- id: task-contexts
name: Task 2
title: "Task: Event Bus"
text: |
<h2>
<span class="text-success"><span class="glyphicon glyphicon-download"></span></span>
<a href="http://todr.me/wp-content/uploads/2014/04/eventBus.zip">EventBus tests</a>
</h2>
code:
hideOutput: true
big: true
content: |
var EventBus = {
listenTo: function(eventName, func, context) {
// throw Error("TODO");
},
trigger: function(eventName /* arguments */) {
// throw Error("TODO");
}
};
var State = {
i: 0,
increment: function() { this.i++; }
};
EventBus.listenTo(
'increment', State.increment, State);
EventBus.trigger('increment');
// This should result in "1"
console.log(State.i);
task:
duration: 30
objectives:
- In file <code>public/javascripts/eventBus.js</code> implement <code>EventBus</code> object that will trigger all listeners for specific <code>eventName</code> in proper context
extras:
- Pass additional arguments from <code>trigger</code> method to listeners.
- Use <code>EventBus</code> in your application to notify View from Model.
solution:
name: Event Bus - solution
title: Event Bus
monitor: State
code: |
var EventBus = {
_listeners : {},
listenTo: function(eventName, func, context) {
var listeners = this._listeners[eventName];
if (!listeners) {
this._listeners[eventName] = listeners = [];
}
listeners.push({
func: func,
ctx: context
});
},
trigger: function(eventName /* arguments */) {
var listeners = this._listeners[eventName] || [];
//var args = arguments.slice(1);
var args = [].slice.call(arguments, 1);
listeners.forEach(function(listener) {
listener.func.apply(listener.ctx, args);
});
}
};
var State = {
i: 0,
increment: function(amount) {
this.i += amount;
}
};
EventBus.listenTo('increment', State.increment, State);
EventBus.trigger('increment', 5);
// This should result in "5"
console.log(State.i);
- id: rest1
name: REST
title: REST - Representational State Transfer
text: |
<h2 class="text-warning">RESTful architecture constraints</h2>
<h3>
<span class="glyphicon glyphicon-ok text-success"></span>
Client-server
</h3>
<h3>
<span class="glyphicon glyphicon-ok text-success"></span>
Stateless
</h3>
<h3>
<span class="glyphicon glyphicon-ok text-success"></span>
Cacheable
</h3>
<h3>
<span class="glyphicon glyphicon-ok text-success"></span>
Layered system
</h3>
<h3>
<span class="glyphicon glyphicon-ok text-success"></span>
Uniform interface
</h3>
notes: |
1. Client-server - we have clear separation between client and server.
We can change any part of client code
Or modify internals of server, or even change database
but as long as interface is defined between them everything has to work.
2. Stateless - Server should not store any context of client.
Each request has to contain everything that is need by server.
3. Cacheable - resources should defined them as cacheable.
4. Layered system - a client cannot distinguish between end server or intermediary.
5. Uniform interface - FUNDAMENTAL!!!
- identification of resource / for instance URIs
- manipulation through representations
- self-descriptive messages - enough information to describe how to process the message
- Hypermedia as the engine of application state (HATEOAS)
no prior knowledge about how to interact with any application or server is required
Example of REST architecture implementation is Web (to support session we have to pass Cookie, SessionID or something)
But we can also build APIs on top of that.
REST is architecture vs SOAP is a protocol.
- id: rest2
name: REST
title: RESTful API Example (URLs)
text: |
<h2>
<span class="glyphicon glyphicon-link text-success"></span>
<code>http://api.example.com/fruits</code>
</h2>
<h3>URL representing a collection of fruits</h3>
<br>
<h2>
<span class="glyphicon glyphicon-link text-success"></span>
<code>http://api.example.com/fruits/apple1</code>
</h2>
<h3>URL representing a single fruit with id <code>apple1</code></h3>
- id: rest3
name: REST
title: RESTful API Example (Methods on collection)
text: |
<h2>
<span class="label label-success">GET</span>
<code>http://api.example.com/fruits</code>
</h2>
<h3><strong>Retrieve</strong> collection of fruits</h3>
<br>
<h2>
<span class="label label-warning">PUT</span>
<code>http://api.example.com/fruits</code>
</h2>
<h3><strong>Replace</strong> entire collection with new one</h3>
<br>
<h2>
<span class="label label-primary">POST</span>
<code>http://api.example.com/fruits</code>
</h2>
<h3><strong>Create</strong> a new entry in collection.</h3>
<br>
<h2>
<span class="label label-danger">DELETE</span>
<code>http://api.example.com/fruits</code>
</h2>
<h3><strong>Delete</strong> entire collection</h3>
notes: |
We use POST as Create operation due to HTTP specification:
GET - safe operation (nullipotent) - should not produce any side-effects
POST - has side-effects
PUT & DELETE - idempotent methods - invoking them multiple times should have same effect.
These properties might be used by Proxies or clients implementations.
- id: rest4
name: REST
title: RESTful API Example (Methods on objects)
text: |
<h2>
<span class="label label-success">GET</span>
<code>http://api.example.com/fruits/apple1</code>
</h2>
<h3><strong>Retrieve</strong> details about <code>apple1</code>.</h3>
<br>
<h2>
<span class="label label-warning">PUT</span>
<code>http://api.example.com/fruits/apple1</code>
</h2>
<h3><strong>Replace / Update</strong> <code>apple1</code></h3>
<br>
<h2>
<span class="label label-danger">DELETE</span>
<code>http://api.example.com/fruits/apple1</code>
</h2>
<h3><strong>Remove</strong> <code>apple1</code> from collection</h3>
notes: |
POST (Create) operation is rarely used on specific objects.
- id: rest5
name: REST
title: RESTful JSON API Example
text:
<h2>
<span class="glyphicon glyphicon-new-window text-muted"></span>
<a href="https://apigee.com/embed/console/soundcloud">Soundcloud API Console</a>
<span class="glyphicon glyphicon-new-window text-muted"></span>
<a href="https://chrome.google.com/webstore/detail/postman-rest-client/fdmmgilgnpjigdojojpjoooidkmcomcm">Postman 4 Chrome</a>
<span class="glyphicon glyphicon-new-window text-muted"></span>
<a href="https://addons.mozilla.org/pl/firefox/addon/restclient/">REST Client 4 Firefox</a>
</h2>
monitor: result
code:
big: true
content: |
var result = {};
// GET https://api.github.com/users
result.collection = [
{
"login": "mojombo",
"id": 1,
"html_url": "https://github.com/mojombo",
"type": "User",
"site_admin": true
}
];
// GET https://api.github.com/users/tomusdrw
result.tomusdrw = {
"login": "tomusdrw",
"id": 581548,
"html_url": "https://github.com/tomusdrw",
"type": "User",
"site_admin": false,
"name": "Tomasz Drwięga",
};
notes: |
First call returns collection of users (but of course is limited)
Audience can open the link in browser - it should show the content
Second call returns a single user out of collection, with more detailed information (like "name")
footer: |
<br>
<h2 class="checkbox">
<label>
<input type="checkbox" class="training-checkbox" data-training="rest" style="width:25px;height:25px">
I would be interested in <span class="text-primary">Designing and implementing professional REST webservices</span> training
</label>
</h2>
script: *trainingStats
- id: ajax1
name: AJAX
title: Asynchronous JavaScript and XML
microtasks:
- description: Console.log only first property of <code>data</code> object
hint: Try with <code>data['Hello!']</code>
js: |
console\.log\(data\[['"]Hello!['"]\]\)
monitor: promise
code:
small: true
async: true
content: |
var promise = $.ajax({
url: '/js/example.json',
success: function(data) {
console.log(data);
}
});
notes: |
Requesting single file (asynchronously) - remind about event-driven design in JS
Mention something about one-threaded enviroment.
Tell that output is updated with delay to show asynchronous nature.
Mention that AJAX calls cannot be made across different domains.
- id: ajax2
name: AJAX
title: Using jQuery to make AJAX calls
microtasks:
- description: From first promise pass login instead of <code>data</code> in <code>user</code> property.
hint: "Try out with <code>user: data.login</code>"
js: |
user:\s*data\.login
- description: Fetch data about user <code>purplecode</code> instead of <code>tomusdrw</code>
hint: Change URL passed to ajax function
js: |
url:.+?users/purplecode
monitor: promise
code:
async: true
content: |
var promise = $.ajax({
url: 'https://api.github.com/users/tomusdrw'
}).then(function(data){
return {
user: data
};
}).then(function(data){
console.log(data);
return data;
});
promise.loading = "...";
notes: |
Explain that you didn't lie guys.
jQuery automagically switches to JSONp; it uses a different mechanism (explain if there are questions)
Say something about promises and how do they work.
- id: nodejs
name: Node.js
title: Node.js - <code>http</code> module
code:
hideOutput: false
language: express
run: false
big: true
content: |
var http = require('http');
var server = http.createServer(function (req, res) {
res.end("Hello world");
});
server.listen(process.env.PORT || 3000, function(){
console.log("Running on " + process.env.PORT);
});
iframe: true
- id: connectjs
name: Connect.js
title: Connect.js
text: |
<h2 class="text-muted">
<a href="http://www.senchalabs.org/connect/">Connect</a> is a middleware framework for node.
</h2>
code:
hideOutput: false
language: express
run: false
big: true
content: |
var http = require('http'),
connect = require('connect');
var app = connect()
.use(connect.logger('dev'))
.use(function(req, res) {
res.end("Hello World!");
});
http.createServer(app).listen(process.env.PORT || 3000, function(){
console.log("Listening on " + (process.env.PORT || 3000));
});
iframe: true
- id: connectjs2
name: Connect.js
title: Connect.js - Middleware?
text: |
<h2 class="text-muted">
WTF is middleware?
</h2>
code:
hideOutput: false
language: express
run: false
big: true
content: |
var http = require('http'),
connect = require('connect');
var app = connect()
.use(function(req, res, next){
if (Math.random() < 0.5) {
next();
} else {
res.end("Busted!");
}
})
.use(function(req, res) {
res.end("Hello World!");
});
http.createServer(app).listen(process.env.PORT || 3000, function(){
console.log("Listening on " + (process.env.PORT || 3000));
});
iframe: true
- id: expressjs
name: Express.js
title: Express.js
text: |
<h2 class="text-muted">
<a href="http://expressjs.com/">Express</a> - web application framework for node
</h2>
code:
hideOutput: false
language: express
run: false
big: true
content: |
var express = require('express'),
http = require('http'), path = require('path');
var app = express();
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(app.router);
app.get('/', function(req, res) {
res.send("Hello world!");
});
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
iframe: true
- id: expressjs-app
name: Express.js
title: Express.js - Full app
code:
hideOutput: false
language: express
run: false
big: true
content: |
var express = require('express'),
http = require('http'), path = require('path');
var app = express();
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.json());
app.use(express.urlencoded());
app.use(express.methodOverride());
app.use(express.cookieParser('your secret here'));
app.use(express.session());
app.use(express.bodyParser());
app.use(app.router);
app.use(express.static(path.join(__dirname, 'public')));
app.get('/', function(req, res) {
res.send("Hello world!");
});
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
iframe: true
- id: expressjs-api
name: Express.js
title: Express.js - API
code:
hideOutput: false
language: express
run: false
big: true
content: |
var express = require('express'),
http = require('http'), path = require('path');
var app = express();
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(app.router);
var model = {
a: 5
};
app.get('/', function(req, res) {
res.header('Access-Control-Allow-Origin', '*');
res.send(model);
});
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
iframe: true
- id: task-rest
name: Task 3
title: "Task: Implement REST API in Express.js and use it for persistence"
task:
duration: 60
objectives:
- Implement simplified REST API for Todos or Facebook Stream (Get list, Replace list)
- Consume API in your app
extras:
- Implement and use full REST API for Todos or Facebook Stream (Get list, Get Single, Update, Create, Delete)
solution:
name: REST API - Solution
title: REST API
code:
hideOutput: false
language: express
run: false
big: true
content: |
var express = require('express'),
http = require('http'), path = require('path');
var app = express();
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(express.json());
app.use(app.router);