-
Notifications
You must be signed in to change notification settings - Fork 0
/
2022-11-04-live-message-conditions.html
502 lines (350 loc) · 26.9 KB
/
2022-11-04-live-message-conditions.html
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
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="keywords" content="bloghttpprotocolrql, ">
<title> Support conditional requests for live messages • Eclipse Ditto™</title>
<link rel="stylesheet" href="css/syntax.css">
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" crossorigin="anonymous">
<link rel="stylesheet" href="css/modern-business.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css" crossorigin="anonymous">
<link rel="stylesheet" href="css/customstyles.css">
<link rel="stylesheet" href="css/boxshadowproperties.css">
<link rel="stylesheet" href="css/theme-ditto.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:400,700|Source+Code+Pro:300,600|Titillium+Web:400,600,700">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.4.1/js/bootstrap.min.js" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/anchor-js/2.1.0/anchor.min.js" crossorigin="anonymous"></script>
<script src="js/toc.js"></script>
<script src="js/customscripts.js"></script>
<script type="application/ld+json">
{
"@context": "http://schema.org",
"@type": "Organization",
"url": "https://www.eclipse.dev/ditto/",
"logo": "https://www.eclipse.dev/ditto/images/ditto.svg"
}
</script>
<link rel="icon" type="image/png" href="images/favicon-16x16.png" sizes="16x16">
<link rel="icon" type="image/png" href="images/favicon-32x32.png" sizes="32x32">
<link rel="icon" type="image/png" href="images/favicon-96x96.png" sizes="96x96">
<link rel="alternate" type="application/rss+xml" title="Eclipse Ditto Blog" href="https://www.eclipse.dev/ditto/feed.xml">
<!-- Eclipse Foundation cookie consent: -->
<link rel="stylesheet" type="text/css" href="https://www.eclipse.org/eclipse.org-common/themes/solstice/public/stylesheets/vendor/cookieconsent/cookieconsent.min.css" />
<script src="https://www.eclipse.org/eclipse.org-common/themes/solstice/public/javascript/vendor/cookieconsent/default.min.js"></script>
<script>
$(document).ready(function() {
$("#tg-sb-link").click(function() {
$("#tg-sb-sidebar").toggle();
$("#tg-sb-content").toggleClass('col-md-9');
$("#tg-sb-content").toggleClass('col-md-12');
$("#tg-sb-icon").toggleClass('fa-toggle-on');
$("#tg-sb-icon").toggleClass('fa-toggle-off');
});
});
</script>
</head>
<script>
(function(w,d,s,l,i){
w[l]=w[l]||[];
w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});
var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),
dl=l!='dataLayer'?'&l='+l:'';
j.async=true;
j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;
f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-5WLCZXC');
</script>
<body>
<!-- Navigation -->
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container topnavlinks">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-ditto-home" href="index.html"> <img src="images/ditto_allwhite_symbolonly.svg" class="ditto-navbar-symbol" alt="Home"> <img src="images/ditto_allwhite_textonly.svg" class="ditto-navbar-symbol-text" alt="Eclipse Ditto™"></a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<!-- toggle sidebar button -->
<!--<li><a id="tg-sb-link" href="#"><i id="tg-sb-icon" class="fa fa-toggle-on"></i> Nav</a></li>-->
<!-- entries without drop-downs appear here -->
<li><a href="blog.html">Blog</a></li>
<li><a href="intro-overview.html">Documentation</a></li>
<li><a href="http-api-doc.html">HTTP API</a></li>
<li><a href="sandbox.html">Sandbox</a></li>
<li><a href="https://github.com/eclipse-ditto/ditto" target="_blank">
<img src="images/GitHub-Mark-Light-32px.png" alt="Sources at GitHub">
</a></li>
<li><a href="https://github.com/eclipse-ditto/ditto-clients" target="_blank">
<img src="images/GitHub-Mark-Light-32px.png" alt="SDK sources at GitHub">SDKs
</a></li>
<li><a href="https://github.com/eclipse-ditto/ditto-examples" target="_blank">
<img src="images/GitHub-Mark-Light-32px.png" alt="Example sources at GitHub">examples
</a></li>
<!-- entries with drop-downs appear here -->
<!-- conditional logic to control which topnav appears for the audience defined in the configuration file.-->
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Links<b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="https://projects.eclipse.org/projects/iot.ditto" target="_blank">Eclipse Ditto Project</a></li>
<li><a href="https://www.eclipse.org/forums/index.php/f/364/" target="_blank">Forum</a></li>
<li><a href="https://ci.eclipse.org/ditto/" target="_blank">Jenkins</a></li>
<li><a href="https://dev.eclipse.org/mhonarc/lists/ditto-dev/" target="_blank">Mailing list archives</a></li>
<li><a href="https://gitter.im/eclipse/ditto" target="_blank">Gitter.im chat</a></li>
</ul>
</li>
<!--comment out this block if you want to hide search-->
<li>
<!--start search-->
<div id="search-demo-container">
<input type="text" id="search-input" placeholder="search...">
<ul id="results-container"></ul>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/simple-jekyll-search/0.0.9/jekyll-search.js" type="text/javascript"></script>
<script type="text/javascript">
SimpleJekyllSearch.init({
searchInput: document.getElementById('search-input'),
resultsContainer: document.getElementById('results-container'),
dataSource: 'search.json',
searchResultTemplate: '<li><a href="{url}" title="Support conditional requests for live messages">{title}</a></li>',
noResultsText: 'No results found.',
limit: 10,
fuzzy: true,
})
</script>
<!--end search-->
</li>
</ul>
</div>
</div>
<!-- /.container -->
</nav>
<!-- Page Content -->
<div class="container">
<div id="main">
<!-- Content Row -->
<div class="row">
<!-- Content Column -->
<div class="col-md-12" id="tg-sb-content">
<!-- Look the author details up from the site config. -->
<!-- Output author details if some exist. -->
<!-- Output author details if some exist. -->
<!---->
<!--<span>-->
<!--<!– Mugshot. –>-->
<!--<img src="https://www.gravatar.com/avatar/39b4424d08b8fe92e9f0a52daf2cbc00?s=135" alt="A photo of Aleksandar Stanchev" />-->
<!--<!– Personal Info. –>-->
<!--Written by <a href="https://github.com/alstanchev" target="_blank">Aleksandar Stanchev</a>-->
<!--</span>-->
<!---->
<article class="post" itemscope itemtype="http://schema.org/BlogPosting">
<header class="post-header">
<h1 class="post-title" itemprop="name headline">Support conditional requests for live messages</h1>
<p class="post-meta">Published by <img src="https://www.gravatar.com/avatar/39b4424d08b8fe92e9f0a52daf2cbc00?s=135" alt="A photo of Aleksandar Stanchev" style="width:50px;border-radius:50%;display:inline-block;margin-right:5px;" /><span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name"><a href="https://github.com/alstanchev" target="_blank">Aleksandar Stanchev</a> </span></span> on <time datetime="2022-11-04T00:00:00+00:00" itemprop="datePublished">Nov 4, 2022</time> - Tags:
<a href="tag_blog.html">blog</a>,
<a href="tag_http.html">http</a>,
<a href="tag_protocol.html">protocol</a>,
<a href="tag_rql.html">rql</a>
</p>
</header>
<div class="post-content" itemprop="articleBody">
<!-- this handles the automatic toc. use ## for subheads to auto-generate the on-page minitoc. if you use html tags, you must supply an ID for the heading element in order for it to appear in the minitoc. -->
<script>
$( document ).ready(function() {
// Handler for .ready() called.
$('#toc').toc({ minimumHeaders: 0, listType: 'ul', showSpeed: 0, headers: 'h2,h3,h4' });
/* this offset helps account for the space taken up by the floating toolbar. */
$('#toc').on('click', 'a', function() {
var target = $(this.getAttribute('href'))
, scroll_target = target.offset().top
$(window).scrollTop(scroll_target - 10);
return false
})
});
</script>
<div id="toc"></div>
<p>With the upcoming release of Eclipse Ditto <strong>version 3.1.0</strong> it will be possible to process live messages based on
conditions.</p>
<h2 id="conditional-live-messages">Conditional live messages</h2>
<p>Ditto now supports conditional message sending based on a specified condition in the request.
This functionality can be used via the HTTP API with an HTTP header or query parameter, as well as via the Ditto protocol,
and the Ditto Java Client.
For all three ways there is an example provided in this blog post.</p>
<p>This turns useful, if you want for example to send a message to your device, but only if its digital twin has a specific attribute set.</p>
<p>To be more concrete let’s say we have a thing with a feature that is measuring carbon monoxide levels, and we only want to
send an alarm live message to the corresponding device, if the particle level is over 10.
To achieve this the following HTTP request can be used:</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>POST /api/2/things/org.eclipse.ditto:coffeebrewer/inbox/mesages/co-alarm?condition=gt(features/carbon-monoxide-level/properties/ppm,10)
CO Level too high! Open your windows!
</code></pre></div></div>
<p>Conditions can be specified using <a href="basic-rql.html">RQL syntax</a> to check if a thing has a specific attribute
or feature property value.</p>
<p>In case the condition does not match to the actual state of the thing, the request will fail with
HTTP status code <strong>412 - Precondition Failed</strong>. And the message will not be processed.</p>
<p>If the given condition is invalid, the request will fail with HTTP status code <strong>400 - Bad Request</strong>.</p>
<p>More documentation for this feature can be found here: <a href="basic-conditional-requests.html">Conditional Requests</a></p>
<h3 id="permissions-for-conditional-requests">Permissions for conditional requests</h3>
<p>In order to execute a conditional request, the authorized subject needs to have WRITE permission at the resource
that should be changed by the request.</p>
<p>Additionally, the authorized subject needs to have READ permission at the resource used in the specified condition.
Given the condition from the introduction <code class="language-plaintext highlighter-rouge">gt(features/carbon-monoxide-level/properties/ppm,10)</code>,
read access on the single attribute would be sufficient.
However, the condition can also be more complex, or include other sub-structures of the thing.
Then of course, the authorized subject needs READ permission on all parameters of the specified condition.</p>
<h2 id="examples">Examples</h2>
<p>The following subsections will show how to use conditional requests via the HTTP API, Ditto protocol,
and Ditto Java Client.</p>
<p>To demonstrate the new conditional request, we assume that the following thing already exists:</p>
<div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w">
</span><span class="nl">"thingId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"org.eclipse.ditto:carbon-monoxide-alarm"</span><span class="p">,</span><span class="w">
</span><span class="nl">"policyId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"org.eclipse.ditto:carbon-monoxide-alarm"</span><span class="p">,</span><span class="w">
</span><span class="nl">"attributes"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"manufacturer"</span><span class="p">:</span><span class="w"> </span><span class="s2">"ACME demo corp."</span><span class="p">,</span><span class="w">
</span><span class="nl">"location"</span><span class="p">:</span><span class="w"> </span><span class="s2">"Wonderland"</span><span class="p">,</span><span class="w">
</span><span class="nl">"serialno"</span><span class="p">:</span><span class="w"> </span><span class="s2">"42"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"features"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"carbon-monoxide-level"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"properties"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"ppm,"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"alarm"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"properties"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"lastTriggered"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2021-09-23T07:01:56Z"</span><span class="p">,</span><span class="w">
</span><span class="nl">"confirmed"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"ConnectionStatus"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"definition"</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="w">
</span><span class="s2">"org.eclipse.ditto:ConnectionStatus:1.0.0"</span><span class="w">
</span><span class="p">],</span><span class="w">
</span><span class="nl">"properties"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"status"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"readySince"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2022-11-04T14:35:02.643Z"</span><span class="p">,</span><span class="w">
</span><span class="nl">"readyUntil"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2022-11-04T16:35:03.643Z"</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<h3 id="condition-based-on-alarmconfirmed">Condition based on alarm/confirmed</h3>
<p>In this example a live alarm message from the device should only be sent, if the alarm confirmed property is set to
false by the end user application. This is done to prevent duplicate received alarms by the customer.</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>POST /api/2/things/org.eclipse.ditto:carbon-monoxide-alarm/inbox/mesages/co-alarm?condition=and(gt(features/carbon-monoxide-level/properties/ppm,10),eq(features/alarm/properties/confirmed,false))
</code></pre></div></div>
<p>Another use case could be to i.e. only send a message to a device when the device is connected:</p>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>POST /api/2/things/org.eclipse.ditto:carbon-monoxide-alarm/inbox/messages/doSomething?condition=gt(features/ConnectionStatus/properties/status/readyUntil,time:now)
</code></pre></div></div>
<h3 id="permissions-to-execute-the-example">Permissions to execute the example</h3>
<p>For this example, the authorized subject could have READ and WRITE permissions on the complete thing resource.
However, it is only necessary on the path <em>thing:/features/alarm/properties/confirmed</em> and <em>thing:features/carbon-monoxide-level/properties/ppm</em>.</p>
<h2 id="conditional-requests-via-http-api">Conditional requests via HTTP API</h2>
<p>Using the HTTP API the condition can either be specified via HTTP Header or via HTTP query parameter.<br />
In this section, we will show how to use both options.</p>
<h3 id="conditional-request-with-http-header">Conditional request with HTTP Header</h3>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>POST /api/2/things/org.eclipse.ditto:carbon-monoxide-alarm/outbox/messages/co-alarm
Content-Type: application/json
condition: eq(features/alarm/properties/confirmed,false)
CO Level too high! Open your windows!
</code></pre></div></div>
<h3 id="conditional-request-with-http-query-parameter">Conditional request with HTTP query parameter</h3>
<div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>POST /api/2/things/org.eclipse.ditto:carbon-monoxide-alarm/outbox/messages/co-alarm?condition=eq(features/alarm/properties/confirmed,false)
Content-Type: application/json
CO Level too high! Open your windows!
</code></pre></div></div>
<h2 id="conditional-request-via-ditto-protocol">Conditional request via Ditto protocol</h2>
<p>It is also possible to use conditional requests via the Ditto protocol.
Applying the following Ditto command to the existing thing will lead to the same result as in the above HTTP example.</p>
<div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w">
</span><span class="nl">"topic"</span><span class="p">:</span><span class="w"> </span><span class="s2">"org.eclipse.ditto/carbon-monoxide-alarm/things/live/messages/co-alarm"</span><span class="p">,</span><span class="w">
</span><span class="nl">"headers"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"content-type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"application/json"</span><span class="p">,</span><span class="w">
</span><span class="nl">"condition"</span><span class="p">:</span><span class="w"> </span><span class="s2">"eq(features/alarm/properties/confirmed,false)"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"path"</span><span class="p">:</span><span class="w"> </span><span class="s2">"/outbox/messages/co-alarm"</span><span class="p">,</span><span class="w">
</span><span class="nl">"value"</span><span class="p">:</span><span class="w"> </span><span class="s2">"CO Level to high! Open your windows!"</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<h2 id="using-conditional-requests-in-the-ditto-java-client">Using conditional requests in the Ditto Java Client</h2>
<p>The conditional requests are also supported via the <a href="client-sdk-java.html">Ditto Java Client</a>
with the upcoming (<strong>Ditto Java Client version 3.1.0</strong>).</p>
<p>Example for a conditional update of a thing with the Ditto Java client:</p>
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nc">String</span> <span class="n">thingId</span> <span class="o">=</span> <span class="s">"org.eclipse.ditto:carbon-monoxide-alarm"</span><span class="o">;</span>
<span class="c1">// initialize the ditto-client</span>
<span class="nc">DittoClient</span> <span class="n">dittoClient</span> <span class="o">=</span> <span class="o">...</span> <span class="o">;</span>
<span class="n">dittoClient</span><span class="o">.</span><span class="na">live</span><span class="o">().</span><span class="na">message</span><span class="o">(</span><span class="nc">Options</span><span class="o">.</span><span class="na">condition</span><span class="o">(</span><span class="s">"eq(features/alarm/properties/confirmed,false)"</span><span class="o">))</span>
<span class="o">.</span><span class="na">from</span><span class="o">(</span><span class="n">thingId</span><span class="o">)</span>
<span class="o">.</span><span class="na">subject</span><span class="o">(</span><span class="s">"co-alarm"</span><span class="o">)</span>
<span class="o">.</span><span class="na">payload</span><span class="o">(</span><span class="s">"CO Level to high! Open your windows!"</span><span class="o">)</span>
<span class="o">.</span><span class="na">send</span><span class="o">(</span><span class="nc">String</span><span class="o">.</span><span class="na">class</span><span class="o">,</span> <span class="o">(</span><span class="n">response</span><span class="o">,</span> <span class="n">throwable</span><span class="o">)</span> <span class="o">-></span> <span class="o">{</span>
<span class="k">if</span> <span class="o">(</span><span class="n">throwable</span> <span class="o">!=</span> <span class="kc">null</span><span class="o">)</span> <span class="o">{</span>
<span class="no">LOGGER</span><span class="o">.</span><span class="na">error</span><span class="o">(</span><span class="s">"Received error while sending conditional update: '{}' "</span><span class="o">,</span> <span class="n">throwable</span><span class="o">.</span><span class="na">toString</span><span class="o">());</span>
<span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
<span class="no">LOGGER</span><span class="o">.</span><span class="na">info</span><span class="o">(</span><span class="s">"Received response for conditional update: '{}'"</span><span class="o">,</span> <span class="n">response</span><span class="o">);</span>
<span class="o">}</span>
<span class="o">});</span>
</code></pre></div></div>
<h2 id="feedback">Feedback?</h2>
<p>Please <a href="feedback.html">get in touch</a> if you have feedback or questions towards this new functionality.</p>
<p><br />
<br /></p>
<figure><img class="docimage" src="images/ditto.svg" alt="Ditto" style="max-width: 500px" /></figure>
<p>–<br />
The Eclipse Ditto team</p>
</div>
</article>
<hr class="shaded"/>
<footer>
<div class="row">
<div class="col-lg-12 footer">
<div class="logo">
<a href="https://eclipse.org"><img src="images/eclipse_foundation_logo.svg" alt="Eclipse logo"/></a>
</div>
<p class="notice">
©2024 Eclipse Ditto™.
Site last generated: Nov 15, 2024 <br />
</p>
<div class="quickLinks">
<a href="https://www.eclipse.org/legal/privacy.php" target="_blank">
> Privacy Policy
</a>
<a href="https://www.eclipse.org/legal/termsofuse.php" target="_blank">
> Terms of Use
</a>
<a href="https://www.eclipse.org/legal/copyright.php" target="_blank">
> Copyright Agent
</a>
<a href="https://www.eclipse.org/legal" target="_blank">
> Legal
</a>
<a href="https://www.eclipse.org/legal/epl-2.0/" target="_blank">
> License
</a>
<a href="https://eclipse.org/security" target="_blank">
> Report a Vulnerability
</a>
</div>
</div>
</div>
</footer>
</div>
<!-- /.row -->
</div>
<!-- /.container -->
</div>
<!-- /#main -->
</div>
</body>
</html>