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Building Realtime Mobile Solutions with MQTT and IBM Messagesight

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Building Realtime Mobile Solutions with MQTT and IBM Messagesight IBM® WebSphere® Front cover Building Real-time Mobile Solutions with MQTT and IBM MessageSight Provides practical guidance to getting started quickly with MQTT and IBM MessageSight Builds a mobile application (PickMeUp) by using MQTT and IBM MessageSight Shows typical usage patterns and guidance to expand the solution Bryan Boyd Joel Gauci Michael P Robertson Nguyen Van Duy Rahul Gupta Vasfi Gucer Vladimir Kislicins ibm.com/redbooks International Technical Support Organization Building Real-time Mobile Solutions with MQTT and IBM MessageSight October 2014 SG24-8228-00 Note: Before using this information and the product it supports, read the information in “Notices” on page vii. First Edition (October 2014) This edition applies to IBM MessageSight Version 1.1 and MQTT Version 3.1. © Copyright International Business Machines Corporation 2014. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Notices . vii Trademarks . viii Preface . ix Authors. ix Now you can become a published author, too! . xi Comments welcome. xi Stay connected to IBM Redbooks . xii Chapter 1. Overview of MQTT . 1 1.1 Building a Smarter Planet world . 2 1.1.1 The Internet of Things (IoT) . 2 1.1.2 Smarter Planet concept . 4 1.1.3 Telemetry and the Internet . 5 1.2 MQTT . 6 1.2.1 Benefits of the MQTT protocol . 6 1.2.2 Basic concepts of the MQTT protocol. 7 1.2.3 The OASIS MQTT Technical Committee . 8 1.2.4 The Eclipse Paho project . 9 1.2.5 Comparison of MQTT and HTTP . 10 1.3 MessageSight . 12 1.4 Benefits of using MQTT . 15 1.5 Where to use MQTT . 17 1.5.1 Connected car. 17 1.5.2 Connected city . 17 1.5.3 Connected home. 18 1.5.4 Connected consumers . 19 Chapter 2. Getting started with MQTT. 21 2.1 MQTT concepts. 22 2.1.1 MQTT messaging . 22 2.1.2 MQTT client programming . 24 2.2 MQTT server . 25 2.2.1 IBM MessageSight . 25 2.2.2 IBM WebSphere MQ. 25 2.2.3 Really Small Message Broker and MQ Telemetry daemon for devices . 25 2.2.4 Mosquitto . 25 2.3 MQTT clients. 26 2.3.1 Eclipse Paho clients . 26 2.3.2 IBM Mobile Messaging and M2M Client Pack MA9B . 26 2.3.3 Preparation . 27 2.3.4 Building the sample MQTT application . 29 2.3.5 MQTT publisher and subscriber in Java . 30 2.3.6 MQTT publisher and subscriber in JavaScript . 38 Chapter 3. Overview of IBM MessageSight. 47 3.1 Features of MessageSight . 48 3.1.1 MessageSight is a developer-friendly solution . 49 3.1.2 Connections to MessageSight . 50 © Copyright IBM Corp. 2014. All rights reserved. iii 3.2 Messaging patterns of MessageSight . 50 3.2.1 Fan out broadcast . 50 3.2.2 Fan in per device notification . 51 3.2.3 Fan out per device notification . 52 3.2.4 Fan out per device request-reply . 53 3.2.5 Fan in per device request-reply. 53 3.3 Install the MessageSight virtual appliance (for developers) . 54 3.4 Overview of the MessageSight web UI . 57 3.4.1 Connect to the MessageSight appliance . 57 3.4.2 The MessageSight Home page . 60 3.4.3 Administrator actions using the MessageSight web UI. 63 3.5 Overview of the MessageSight CLI. 70 3.5.1 Connect to the MessageSight appliance . 70 3.5.2 Administrator actions using the MessageSight CLI. 71 3.6 Message hubs, endpoints, and policies . 75 3.6.1 Endpoints . 75 3.6.2 Message hubs. 76 3.6.3 Connection policies. 77 3.6.4 Messaging policies . 77 3.6.5 Endpoints . 78 3.6.6 The DemoHub message hub . 78 3.6.7 Configuring your first message hub using the MessageSight web UI. 82 3.6.8 Configuring a message hub using the MessageSight CLI . 82 3.6.9 Use the MessageSight SSH to deploy message hub configuration . 84 Chapter 4. Typical network topology, messaging patterns, and considerations . 87 4.1 Network topology . 88 4.1.1 The architecture . 91 4.2 Messaging patterns. ..
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