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APIs : The Bridge to IoT

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APIs : The Bridge to IoT Asanka Abeysinghe Vice President, Solutions Architecture - WSO2,Inc


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Trip to Sri Lanka 3


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Connect everything to anything. 4


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Connecting the new/old world 6 Picture Credit : Flicker – Sam Valadi


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Smart basketball 7 Picture Credit : http://www.94fifty.eu/


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Nike running app 8 Picture Credit : https://secure-nikeplus.nike.com/plus/running/home


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Aggregated view 9


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Anatomy of a device : isolated Piece of hardware Built for a purpose Capable for a limited functionality Control interface Input/output Consumes power 10


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{API}s to avoid isolation. 11


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Anatomy of a device : functional Functional capabilities (actuators) Administration capabilities (management) Monitoring capabilities (sensor data) 12


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{API}s to enable the device functionality. 13


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{API}s at the edge 14 Inside device itself Closer to the device


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{API}s and devices 15 TO FROM FUNCTIONAL SYSTEM


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Modeling device as an {API} HTTP API Temperature sensor http://{ip}/{locationid}/sensors/temperature -GET Motor http://{ip}/{locationid}/actuators/motor1/rotate/{turns}/{direction} -POST http://{ip}/{locationid}/actuators/motor1/status -GET 16


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* App Device has full API Management capabilities. Pattern #1 {API}


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* Authorization Manager App Device uses an authorization server to authorize access. Pattern #2 {API} {API}


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* Device Gateway App Authorization Manager Having a Device gateway in front of the device. Pattern #3 {API} {API} {API}


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* Device Gateway App Authorization Manager Analytics Device gateway publishes events to an external (scalable) event processing engine. Pattern #4 {API} {API} {API} {API}


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Analytics 21


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* Mediation/ Routing Device Gateway App Authorization Manager Analytics Having mediation & routing capabilities help to transform the messages going back and forth from the device. Routing helps to select the correct device. Pattern #5 {API} {API} {API} {API} {API}


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{API}s and Mediation as the protocol to connect with the ecosystem. E.g. Systems of record/engagement/automation 23


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* Event Queue Mediation/ Routing Device Gateway App Authorization Manager Analytics Devices could be busy/ unavailable. Having a Queue helps to guarantee message delivery to/from device. (pub/sub api) Pattern #6 {API} {API} {API} {API} {API} {API}


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* Event Queue Mediation/ Routing Device Gateway App Authorization Manager Analytics Some devices are not built with sufficient processing capabilities. They could be low powered ones. A Device hub will help such devices connect to the rest of the world. Device Hub Pattern #7 {API} {API} {API} {API} {API} {API} {API} {API}


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* Event Queue Mediation/ Routing Device Gateway App Authorization Manager Statistics Processing Device Management helps a large number of devices (common policies,etc) to be managed centrally. Device Hub Device Management Pattern #8 {API} {API} {API} {API} {API} {API} {API}


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Reference architecture 27


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SenseBot 28 A robotic car, built around the Arduino Uno and WSO2 Platform.


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How SenseBot works 29


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SenseBot APIs /controller/{direction} - POST /sensordata/ldrstats – POST /sensordata/motionStats – POST /sensordata/sonarStats – POST /sensordata/tempreatureStats – POST /sensordata/humidityStats - POST 30


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Device cloud 31


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Hackathon in London 32


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IoT reference architecture 33


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Enterprise middleware and cloud platform from systems of record to systems of engagement ( data to consumer )


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Summary 35 Integrate the IoT and the IT world Developer productivity & go to market Events management QoS Security Scalability Reliability Device management & governance Be prepared to adapt to the future {API}s


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36 b : http://asanka.abeysinghe.org t : @asankama e : asankaa AT wso2.com w : http://wso2.com


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