-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy path2018-05-02-connecting-ditto-hono.html
1053 lines (859 loc) · 90.1 KB
/
2018-05-02-connecting-ditto-hono.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
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
<!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="blogconnectivity, ">
<title> Connecting Eclipse Ditto to Eclipse Hono • 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="Connecting Eclipse Ditto to Eclipse Hono">{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/1993375e06bf8a2b236b5862792a0532?s=135" alt="A photo of Thomas Jäckle" />-->
<!--<!– Personal Info. –>-->
<!--Written by <a href="https://github.com/thjaeckle" target="_blank">Thomas Jäckle</a>-->
<!--</span>-->
<!---->
<article class="post" itemscope itemtype="http://schema.org/BlogPosting">
<header class="post-header">
<h1 class="post-title" itemprop="name headline">Connecting Eclipse Ditto to Eclipse Hono</h1>
<p class="post-meta">Published by <img src="https://www.gravatar.com/avatar/1993375e06bf8a2b236b5862792a0532?s=135" alt="A photo of Thomas Jäckle" 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/thjaeckle" target="_blank">Thomas Jäckle</a> </span></span> on <time datetime="2018-05-02T00:00:00+00:00" itemprop="datePublished">May 2, 2018</time> - Tags:
<a href="tag_blog.html">blog</a>,
<a href="tag_connectivity.html">connectivity</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>
<div class="alert alert-danger" role="alert"><i class="fa fa-exclamation-circle"></i> <b>Warning:</b> This guide does no longer work with the latest (1.x) versions of Ditto + Hono. Please take a look and make use of the <a href="https://www.eclipse.org/packages/packages/cloud2edge/">Eclipse IoT Packages “cloud2edge” package</a> in order to setup and automatically connect Ditto + Hono.</div>
<p>With the recently released Ditto milestone <a href="2018-04-26-milestone-announcement-030-M1.html">0.3.0-M1</a> the <code class="language-plaintext highlighter-rouge">connectivity</code>
to AMQP 1.0 endpoints can now be established in a durable and stable way (including failovers, etc.).</p>
<p>That means Ditto now is ready to be connected to <a href="https://www.eclipse.org/hono/">Eclipse Hono’s</a> “northbound” API which
is provided via AMQP 1.0.<br />
By doing so it is for example possible to receive Hono telemetry
messages (see heading “Northbound Operations”) which a device <code class="language-plaintext highlighter-rouge">demo-device</code> connected to the “southbound” of Hono sends
via HTTP or MQTT (the currently available protocol adapters of Hono) in Ditto.<br />
When received, the payload can be translated into a format Ditto understands in order to update the
<a href="intro-digitaltwins.html">digital twin</a> of the <code class="language-plaintext highlighter-rouge">demo-device</code> device and provide API access to the twin, e.g. via <code class="language-plaintext highlighter-rouge">HTTP</code>
or <code class="language-plaintext highlighter-rouge">WebSocket</code>.</p>
<p>This blog post walks through the steps required to connect Ditto and Hono by adding a connection between the Hono and
Ditto sandboxes at</p>
<ul>
<li><a href="https://hono.eclipseprojects.io">hono.eclipse.org</a></li>
<li><a href="https://ditto.eclipseprojects.io">ditto.eclipseprojects.io</a></li>
</ul>
<h2 id="scenario">Scenario</h2>
<p>The following graphic illustrates the scenario:</p>
<figure><img class="docimage" src="images/blog/2018-05-02-ditto-hono-digital-twin.png" alt="Ditto-Hono digital twin" style="max-width: 469px" /><figcaption>Scenario for providing a digital twin in Ditto of a device connected via Hono</figcaption></figure>
<p>Let’s assume for this tutorial that we have a device (e.g. containing a sensor) <code class="language-plaintext highlighter-rouge">demo-device</code> which is capable of
measuring temperature and humidity.</p>
<p>This device sends the sensor telemetry data every 5 minutes via MQTT into the cloud in either of the following formats:</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">"temp"</span><span class="p">:</span><span class="w"> </span><span class="mf">23.42</span><span class="p">,</span><span class="w">
</span><span class="nl">"hum"</span><span class="p">:</span><span class="w"> </span><span class="mf">44.42</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w">
</span><span class="nl">"temp"</span><span class="p">:</span><span class="w"> </span><span class="mf">23.42</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w">
</span><span class="nl">"hum"</span><span class="p">:</span><span class="w"> </span><span class="mf">44.42</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<p>We want to create a digital twin for this device in order to access the device’s sensor data as API via Eclipse Ditto.</p>
<h2 id="steps-in-hono">Steps in Hono</h2>
<p>The steps in order to get started with Eclipse Hono are documented in the
<a href="https://www.eclipse.org/hono/getting-started/">Hono getting started</a> and in a new
<a href="https://blog.bosch-si.com/developer/using-multi-tenancy-in-eclipse-hono/">Blog post about using multi-tenancy in Eclipse Hono</a>.
We show them very briefly here as well but in order to comprehend what and why we are doing what we do please consult
the Hono documentation.</p>
<h3 id="create-a-tenant">Create a tenant</h3>
<p>First of all, create a new Hono tenant (we chose the tenant name <code class="language-plaintext highlighter-rouge">org.eclipse.ditto</code>):</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{"tenant-id": "org.eclipse.ditto"}'</span> https://hono.eclipseprojects.io:28080/tenant
</code></pre></div></div>
<h3 id="register-a-device">Register a device</h3>
<p>Register a new device in Hono (we chose the device-id <code class="language-plaintext highlighter-rouge">demo-device</code>):</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{"device-id": "demo-device"}'</span> https://hono.eclipseprojects.io:28080/registration/org.eclipse.ditto
</code></pre></div></div>
<h3 id="add-a-device-credential">Add a device credential</h3>
<p>In order for the device being able to send telemetry it needs to authenticate. For that we will need to add a credential
for that device in Hono.</p>
<p>We choose the <code class="language-plaintext highlighter-rouge">hashed-password</code> type:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ PWD_HASH</span><span class="o">=</span><span class="si">$(</span><span class="nb">echo</span> <span class="nt">-n</span> <span class="s1">'demo-device-password'</span> | openssl dgst <span class="nt">-binary</span> <span class="nt">-sha512</span> | <span class="nb">base64</span> <span class="nt">-w</span> 0<span class="si">)</span>
<span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{
"device-id": "demo-device",
"type": "hashed-password",
"auth-id": "demo-device-auth",
"secrets": [{
"hash-function" : "sha-512",
"pwd-hash": "'</span><span class="nv">$PWD_HASH</span><span class="s1">'"
}]
}'</span> https://hono.eclipseprojects.io:28080/credentials/org.eclipse.ditto
</code></pre></div></div>
<h3 id="publish-data">Publish data</h3>
<p>You are now able to publish <code class="language-plaintext highlighter-rouge">telemetry</code> (or also <code class="language-plaintext highlighter-rouge">event</code>) data via the Hono HTTP adapter:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-u</span> [email protected]:demo-device-password <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{"temp": 23.07}'</span> https://hono.eclipseprojects.io:8080/telemetry
<span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-u</span> [email protected]:demo-device-password <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{"hum": 45.85}'</span> https://hono.eclipseprojects.io:8080/telemetry
</code></pre></div></div>
<p>However as there is not yet a <code class="language-plaintext highlighter-rouge">consumer</code> listening for the messages, the Hono HTTP adapter will for example return an
error code <code class="language-plaintext highlighter-rouge">503 - Service unavailable</code> when publishing a <code class="language-plaintext highlighter-rouge">telemetry</code> message.</p>
<p>Alternatively you can also publish telemetry data via MQTT:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>mosquitto_pub <span class="nt">-u</span> <span class="s1">'[email protected]'</span> <span class="nt">-P</span> demo-device-password <span class="nt">-t</span> telemetry <span class="nt">-m</span> <span class="s1">'{"temp": 23.07}'</span>
<span class="nv">$ </span>mosquitto_pub <span class="nt">-u</span> <span class="s1">'[email protected]'</span> <span class="nt">-P</span> demo-device-password <span class="nt">-t</span> telemetry <span class="nt">-m</span> <span class="s1">'{"hum": 45.85}'</span>
</code></pre></div></div>
<p>In the following steps we will register the missing <code class="language-plaintext highlighter-rouge">consumer</code> in Ditto by creating a connection to the Hono tenant
in Ditto’s connectivity.</p>
<h2 id="steps-in-ditto">Steps in Ditto</h2>
<p>We want to create a digital twin of the device connected to Eclipse Hono in order to access its latest reported state
via the Ditto <a href="httpapi-overview.html">HTTP API</a>, in order to be able to find it in a population of digital twins or
in order to be notified about changed via an API optimized for the web.</p>
<h3 id="create-a-digital-twin">Create a digital twin</h3>
<p>The first step is to create a skeleton for the digital twin by creating a Ditto <code class="language-plaintext highlighter-rouge">Thing</code>.<br />
Notice that we authenticate with the sandbox user <code class="language-plaintext highlighter-rouge">demo5</code> - a default <a href="basic-policy.html">Policy</a> is implicitly
created so that only that user may read+write the created <code class="language-plaintext highlighter-rouge">Thing</code>.</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-X</span> PUT <span class="nt">-i</span> <span class="nt">-u</span> demo5:demo <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{
"attributes": {
"location": "Germany"
},
"features": {
"temperature": {
"properties": {
"value": null
}
},
"humidity": {
"properties": {
"value": null
}
}
}
}'</span> https://ditto.eclipseprojects.io/api/2/things/org.eclipse.ditto:demo-device
</code></pre></div></div>
<p>Make sure the digital twin was created:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-i</span> <span class="nt">-u</span> demo5:demo https://ditto.eclipseprojects.io/api/2/things/org.eclipse.ditto:demo-device
</code></pre></div></div>
<h3 id="create-a-connection-to-hono">Create a connection to Hono</h3>
<p>Ditto recently added support for <a href="connectivity-manage-connections.html">managing connections</a> to foreign endpoints
(currently to AMQP 1.0 or to AMQP 0.9.1). As Hono provides an AMQP 1.0 endpoint, a connection can be added in Ditto
which connects to Hono and acts as a “northbound” <code class="language-plaintext highlighter-rouge">consumer</code>.</p>
<p>The following configuration for the connection has to be applied:</p>
<ul>
<li>AMQP 1.0 hostname: <code class="language-plaintext highlighter-rouge">hono.eclipse.org</code></li>
<li>AMQP 1.0 port: <code class="language-plaintext highlighter-rouge">15672</code></li>
<li>username: <code class="language-plaintext highlighter-rouge">consumer@HONO</code></li>
<li>password: <code class="language-plaintext highlighter-rouge">verysecret</code></li>
<li>sources:
<ul>
<li><code class="language-plaintext highlighter-rouge">telemetry/org.eclipse.ditto</code></li>
<li><code class="language-plaintext highlighter-rouge">event/org.eclipse.ditto</code></li>
</ul>
</li>
</ul>
<h4 id="test-the-connection">Test the connection</h4>
<p>Send the following “test connection” command via HTTP in order to test if the Ditto sandbox can connect to the Hono one.</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-u</span> devops:devopsPw1! <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{
"targetActorSelection": "/system/sharding/connection",
"headers": {
"aggregate": false
},
"piggybackCommand": {
"type": "connectivity.commands:testConnection",
"connection": {
"id": "hono-sandbox-connection-1",
"connectionType": "amqp-10",
"connectionStatus": "open",
"uri": "amqp://consumer%40HONO:[email protected]:15672",
"failoverEnabled": true,
"sources": [{
"addresses": [
"telemetry/org.eclipse.ditto",
"event/org.eclipse.ditto"
],
"authorizationContext": ["nginx:demo5"]
}]
}
}
}'</span> https://ditto.eclipseprojects.io/devops/piggyback/connectivity?timeout<span class="o">=</span>8s
</code></pre></div></div>
<p>The result should be:</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">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.responses:testConnection"</span><span class="p">,</span><span class="w">
</span><span class="nl">"status"</span><span class="p">:</span><span class="w"> </span><span class="mi">200</span><span class="p">,</span><span class="w">
</span><span class="nl">"connectionId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"hono-sandbox-connection-1"</span><span class="p">,</span><span class="w">
</span><span class="nl">"testResult"</span><span class="p">:</span><span class="w"> </span><span class="s2">"ditto-cluster=Success(successfully connected + initialized mapper)"</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<p>Great, it looks like with the provided credentials we can connect to the Hono sandbox.</p>
<h4 id="define-a-payload-mapping">Define a payload mapping</h4>
<p>In the <a href="#scenario">scenario</a> we described the payloads our device sends via MQTT. As those JSON payloads are missing
some information required for Ditto to map it to a <a href="protocol-overview.html">Ditto Protocol</a> message Ditto uses for
updating the digital twin, we have to configure a <a href="connectivity-mapping.html">payload mapping</a> in order to add the
missing information.</p>
<p>Whenever one of the 3 following messages arrives at Ditto’s <code class="language-plaintext highlighter-rouge">consumer</code>, a payload mapping should be performed:</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">"temp"</span><span class="p">:</span><span class="w"> </span><span class="mf">23.42</span><span class="p">,</span><span class="w">
</span><span class="nl">"hum"</span><span class="p">:</span><span class="w"> </span><span class="mf">44.42</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w">
</span><span class="nl">"temp"</span><span class="p">:</span><span class="w"> </span><span class="mf">23.42</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w">
</span><span class="nl">"hum"</span><span class="p">:</span><span class="w"> </span><span class="mf">44.42</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<p>A JavaScript based mapping which exactly does this could look like this:</p>
<div class="language-javascript highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">function</span> <span class="nf">mapToDittoProtocolMsg</span><span class="p">(</span>
<span class="nx">headers</span><span class="p">,</span>
<span class="nx">textPayload</span><span class="p">,</span>
<span class="nx">bytePayload</span><span class="p">,</span>
<span class="nx">contentType</span>
<span class="p">)</span> <span class="p">{</span>
<span class="k">if </span><span class="p">(</span><span class="nx">contentType</span> <span class="o">!==</span> <span class="dl">"</span><span class="s2">application/json</span><span class="dl">"</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="kc">null</span><span class="p">;</span> <span class="c1">// only handle messages with content-type application/json</span>
<span class="p">}</span>
<span class="kd">var</span> <span class="nx">jsonData</span> <span class="o">=</span> <span class="nx">JSON</span><span class="p">.</span><span class="nf">parse</span><span class="p">(</span><span class="nx">textPayload</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">temperature</span> <span class="o">=</span> <span class="nx">jsonData</span><span class="p">.</span><span class="nx">temp</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">humidity</span> <span class="o">=</span> <span class="nx">jsonData</span><span class="p">.</span><span class="nx">hum</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">path</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">value</span><span class="p">;</span>
<span class="k">if </span><span class="p">(</span><span class="nx">temperature</span> <span class="o">!=</span> <span class="kc">null</span> <span class="o">&&</span> <span class="nx">humidity</span> <span class="o">!=</span> <span class="kc">null</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">path</span> <span class="o">=</span> <span class="dl">"</span><span class="s2">/features</span><span class="dl">"</span><span class="p">;</span>
<span class="nx">value</span> <span class="o">=</span> <span class="p">{</span>
<span class="na">temperature</span><span class="p">:</span> <span class="p">{</span>
<span class="na">properties</span><span class="p">:</span> <span class="p">{</span>
<span class="na">value</span><span class="p">:</span> <span class="nx">temperature</span>
<span class="p">}</span>
<span class="p">},</span>
<span class="na">humidity</span><span class="p">:</span> <span class="p">{</span>
<span class="na">properties</span><span class="p">:</span> <span class="p">{</span>
<span class="na">value</span><span class="p">:</span> <span class="nx">humidity</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">};</span>
<span class="p">}</span> <span class="k">else</span> <span class="k">if </span><span class="p">(</span><span class="nx">temperature</span> <span class="o">!=</span> <span class="kc">null</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">path</span> <span class="o">=</span> <span class="dl">"</span><span class="s2">/features/temperature/properties/value</span><span class="dl">"</span><span class="p">;</span>
<span class="nx">value</span> <span class="o">=</span> <span class="nx">temperature</span><span class="p">;</span>
<span class="p">}</span> <span class="k">else</span> <span class="k">if </span><span class="p">(</span><span class="nx">humidity</span> <span class="o">!=</span> <span class="kc">null</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">path</span> <span class="o">=</span> <span class="dl">"</span><span class="s2">/features/humidity/properties/value</span><span class="dl">"</span><span class="p">;</span>
<span class="nx">value</span> <span class="o">=</span> <span class="nx">humidity</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">if </span><span class="p">(</span><span class="o">!</span><span class="nx">path</span> <span class="o">||</span> <span class="o">!</span><span class="nx">value</span><span class="p">)</span> <span class="p">{</span>
<span class="k">return</span> <span class="kc">null</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">Ditto</span><span class="p">.</span><span class="nf">buildDittoProtocolMsg</span><span class="p">(</span>
<span class="dl">"</span><span class="s2">org.eclipse.ditto</span><span class="dl">"</span><span class="p">,</span> <span class="c1">// the namespace we use</span>
<span class="nx">headers</span><span class="p">[</span><span class="dl">"</span><span class="s2">device_id</span><span class="dl">"</span><span class="p">],</span> <span class="c1">// Hono sets the authenticated device-id in this header</span>
<span class="dl">"</span><span class="s2">things</span><span class="dl">"</span><span class="p">,</span> <span class="c1">// it is a Thing entity we want to update</span>
<span class="dl">"</span><span class="s2">twin</span><span class="dl">"</span><span class="p">,</span> <span class="c1">// we want to update the twin</span>
<span class="dl">"</span><span class="s2">commands</span><span class="dl">"</span><span class="p">,</span>
<span class="dl">"</span><span class="s2">modify</span><span class="dl">"</span><span class="p">,</span> <span class="c1">// command = modify</span>
<span class="nx">path</span><span class="p">,</span>
<span class="nx">headers</span><span class="p">,</span> <span class="c1">// copy all headers as Ditto headers</span>
<span class="nx">value</span>
<span class="p">);</span>
<span class="p">}</span>
</code></pre></div></div>
<p>In order to add this script to the connection we want to create, the newlines have to be replaced by <code class="language-plaintext highlighter-rouge">\n</code> so that
the script fits in a single line JSON string and the <code class="language-plaintext highlighter-rouge">"</code> characters have to be replaced with <code class="language-plaintext highlighter-rouge">\"</code>:</p>
<div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="s2">"function mapToDittoProtocolMsg(</span><span class="se">\n</span><span class="s2"> headers,</span><span class="se">\n</span><span class="s2"> textPayload,</span><span class="se">\n</span><span class="s2"> bytePayload,</span><span class="se">\n</span><span class="s2"> contentType</span><span class="se">\n</span><span class="s2">) {</span><span class="se">\n\n</span><span class="s2"> if (contentType !== </span><span class="se">\"</span><span class="s2">application/json</span><span class="se">\"</span><span class="s2">) {</span><span class="se">\n</span><span class="s2"> return null;</span><span class="se">\n</span><span class="s2"> }</span><span class="se">\n\n</span><span class="s2"> var jsonData = JSON.parse(textPayload);</span><span class="se">\n</span><span class="s2"> var temperature = jsonData.temp;</span><span class="se">\n</span><span class="s2"> var humidity = jsonData.hum;</span><span class="se">\n</span><span class="s2"> </span><span class="se">\n</span><span class="s2"> var path;</span><span class="se">\n</span><span class="s2"> var value;</span><span class="se">\n</span><span class="s2"> if (temperature != null && humidity != null) {</span><span class="se">\n</span><span class="s2"> path = </span><span class="se">\"</span><span class="s2">/features</span><span class="se">\"</span><span class="s2">;</span><span class="se">\n</span><span class="s2"> value = {</span><span class="se">\n</span><span class="s2"> temperature: {</span><span class="se">\n</span><span class="s2"> properties: {</span><span class="se">\n</span><span class="s2"> value: temperature</span><span class="se">\n</span><span class="s2"> }</span><span class="se">\n</span><span class="s2"> },</span><span class="se">\n</span><span class="s2"> humidity: {</span><span class="se">\n</span><span class="s2"> properties: {</span><span class="se">\n</span><span class="s2"> value: humidity</span><span class="se">\n</span><span class="s2"> }</span><span class="se">\n</span><span class="s2"> }</span><span class="se">\n</span><span class="s2"> };</span><span class="se">\n</span><span class="s2"> } else if (temperature != null) {</span><span class="se">\n</span><span class="s2"> path = </span><span class="se">\"</span><span class="s2">/features/temperature/properties/value</span><span class="se">\"</span><span class="s2">;</span><span class="se">\n</span><span class="s2"> value = temperature;</span><span class="se">\n</span><span class="s2"> } else if (humidity != null) {</span><span class="se">\n</span><span class="s2"> path = </span><span class="se">\"</span><span class="s2">/features/humidity/properties/value</span><span class="se">\"</span><span class="s2">;</span><span class="se">\n</span><span class="s2"> value = humidity;</span><span class="se">\n</span><span class="s2"> }</span><span class="se">\n</span><span class="s2"> </span><span class="se">\n</span><span class="s2"> if (!path || !value) {</span><span class="se">\n</span><span class="s2"> return null;</span><span class="se">\n</span><span class="s2"> }</span><span class="se">\n\n</span><span class="s2"> return Ditto.buildDittoProtocolMsg(</span><span class="se">\n</span><span class="s2"> </span><span class="se">\"</span><span class="s2">org.eclipse.ditto</span><span class="se">\"</span><span class="s2">,</span><span class="se">\n</span><span class="s2"> headers[</span><span class="se">\"</span><span class="s2">device_id</span><span class="se">\"</span><span class="s2">],</span><span class="se">\n</span><span class="s2"> </span><span class="se">\"</span><span class="s2">things</span><span class="se">\"</span><span class="s2">,</span><span class="se">\n</span><span class="s2"> </span><span class="se">\"</span><span class="s2">twin</span><span class="se">\"</span><span class="s2">,</span><span class="se">\n</span><span class="s2"> </span><span class="se">\"</span><span class="s2">commands</span><span class="se">\"</span><span class="s2">,</span><span class="se">\n</span><span class="s2"> </span><span class="se">\"</span><span class="s2">modify</span><span class="se">\"</span><span class="s2">,</span><span class="se">\n</span><span class="s2"> path,</span><span class="se">\n</span><span class="s2"> headers,</span><span class="se">\n</span><span class="s2"> value</span><span class="se">\n</span><span class="s2"> );</span><span class="se">\n</span><span class="s2">}"</span><span class="w">
</span></code></pre></div></div>
<h4 id="create-the-connection">Create the connection</h4>
<p>We use the payload of the previous “test connection” command and add the JavaScript mapping script from above in order
to specify the “create connection” command, which we will use to create the connection between Eclipse Hono and Ditto:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-u</span> devops:devopsPw1! <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{
"targetActorSelection": "/system/sharding/connection",
"headers": {
"aggregate": false
},
"piggybackCommand": {
"type": "connectivity.commands:createConnection",
"connection": {
"id": "hono-sandbox-connection-1",
"connectionType": "amqp-10",
"connectionStatus": "open",
"uri": "amqp://consumer%40HONO:[email protected]:15672",
"failoverEnabled": true,
"sources": [{
"addresses": [
"telemetry/org.eclipse.ditto",
"event/org.eclipse.ditto"
],
"authorizationContext": ["nginx:demo5"]
}],
"mappingContext": {
"mappingEngine": "JavaScript",
"options": {
"incomingScript": "function mapToDittoProtocolMsg(\n headers,\n textPayload,\n bytePayload,\n contentType\n) {\n\n if (contentType !== \"application/json\") {\n return null;\n }\n\n var jsonData = JSON.parse(textPayload);\n var temperature = jsonData.temp;\n var humidity = jsonData.hum;\n \n var path;\n var value;\n if (temperature != null && humidity != null) {\n path = \"/features\";\n value = {\n temperature: {\n properties: {\n value: temperature\n }\n },\n humidity: {\n properties: {\n value: humidity\n }\n }\n };\n } else if (temperature != null) {\n path = \"/features/temperature/properties/value\";\n value = temperature;\n } else if (humidity != null) {\n path = \"/features/humidity/properties/value\";\n value = humidity;\n }\n \n if (!path || !value) {\n return null;\n }\n\n return Ditto.buildDittoProtocolMsg(\n \"org.eclipse.ditto\",\n headers[\"device_id\"],\n \"things\",\n \"twin\",\n \"commands\",\n \"modify\",\n path,\n headers,\n value\n );\n}"
}
}
}
}
}'</span> https://ditto.eclipseprojects.io/devops/piggyback/connectivity?timeout<span class="o">=</span>8s
</code></pre></div></div>
<p>When establishing the connection + parsing the JavaScript worked, we get a success result as HTTP response again,
otherwise an error message would be returned.</p>
<h4 id="retrieve-connection-metrics">Retrieve connection metrics</h4>
<p>After the connection was created, we can use the following command in order to retrieve the current connection status
and some metrics about how many messages were consumed:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-u</span> devops:devopsPw1! <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{
"targetActorSelection": "/system/sharding/connection",
"headers": {
"aggregate": false
},
"piggybackCommand": {
"type": "connectivity.commands:retrieveConnectionMetrics",
"connectionId": "hono-sandbox-connection-1"
}
}'</span> https://ditto.eclipseprojects.io/devops/piggyback/connectivity?timeout<span class="o">=</span>8s
</code></pre></div></div>
<p>The result looks like this:</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">"type"</span><span class="p">:</span><span class="w"> </span><span class="s2">"connectivity.responses:retrieveConnectionMetrics"</span><span class="p">,</span><span class="w">
</span><span class="nl">"status"</span><span class="p">:</span><span class="w"> </span><span class="mi">200</span><span class="p">,</span><span class="w">
</span><span class="nl">"connectionId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"hono-sandbox-connection-1"</span><span class="p">,</span><span class="w">
</span><span class="nl">"containsFailures"</span><span class="p">:</span><span class="w"> </span><span class="kc">false</span><span class="p">,</span><span class="w">
</span><span class="nl">"connectionMetrics"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"inbound"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"consumed"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.416Z"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"mapped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.422Z"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"dropped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"enforced"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.422Z"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</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">"outbound"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"dispatched"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.439Z"</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"filtered"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"mapped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.443Z"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"dropped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"published"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</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><span class="nl">"sourceMetrics"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"addressMetrics"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"event/org.eclipse.ditto"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"consumed"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"mapped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"dropped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"enforced"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</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">"telemetry/org.eclipse.ditto"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"consumed"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.416Z"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"mapped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.422Z"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"dropped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"enforced"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.422Z"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</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><span class="p">},</span><span class="w">
</span><span class="nl">"targetMetrics"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"addressMetrics"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"_responses"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"dispatched"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.439Z"</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"filtered"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"mapped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="s2">"2019-02-06T09:37:28.443Z"</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"dropped"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">}</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"published"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"success"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</span><span class="w">
</span><span class="p">},</span><span class="w">
</span><span class="nl">"failure"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w">
</span><span class="nl">"PT1M"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT1H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"PT24H"</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w">
</span><span class="nl">"lastMessageAt"</span><span class="p">:</span><span class="w"> </span><span class="kc">null</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><span class="p">}</span><span class="w">
</span><span class="p">}</span><span class="w">
</span></code></pre></div></div>
<h2 id="test-the-integration">Test the integration</h2>
<p>Whenever the device now sends telemetry in its own JSON format</p>
<ul>
<li>the message count of the <a href="#retrieve-connection-metrics">connection metrics in Ditto</a> should be increased by one</li>
<li>the digital twin with the <code class="language-plaintext highlighter-rouge">Thing</code> ID <code class="language-plaintext highlighter-rouge">org.eclipse.ditto:demo-device</code> should receive the updated value which is also
reflected at the twin’s HTTP endpoint
<a href="https://demo5:[email protected]/api/2/things/org.eclipse.ditto:demo-device">https://ditto.eclipseprojects.io/api/2/things/org.eclipse.ditto:demo-device</a></li>
</ul>
<p>Verify that by simulate sending telemetry using the Hono HTTP adapter:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-u</span> [email protected]:demo-device-password <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{"temp": 14.51}'</span> https://hono.eclipseprojects.io:8080/telemetry
<span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-u</span> [email protected]:demo-device-password <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{"hum": 52.17}'</span> https://hono.eclipseprojects.io:8080/telemetry
<span class="nv">$ </span>curl <span class="nt">-X</span> POST <span class="nt">-i</span> <span class="nt">-u</span> [email protected]:demo-device-password <span class="nt">-H</span> <span class="s1">'Content-Type: application/json'</span> <span class="nt">-d</span> <span class="s1">'{"temp": 23.07, "hum": 45.85}'</span> https://hono.eclipseprojects.io:8080/telemetry
</code></pre></div></div>
<p><br />
<br /></p>
<p>Try it out for yourself and give us (the Ditto and the Hono teams) feedback what you like or what could be improved.</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>