The document outlines a presentation on prototyping online components and APIs in the context of the Internet of Things, delivered by Dr. Vikram Neerugatti at Chadalawada Ramanamma Engineering College. It includes topics such as getting started with APIs, writing new APIs, real-time reactions, and various protocols like MQTT and XMPP. The content emphasizes the implementation and communication between clients and servers, as well as legal considerations in the creation of APIs.

1. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
UNIT-3
Prototyping Online Components
Dr. Vikram Neerugatti
Professor
Department of CSE
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 1

2. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
• Getting Started with an API
• Writing a New API
• Real Time Reactions
• Other Protocols protocol
Content
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 2

3. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
✓ Application Programming Interface, or API –
web service
✓ Service – Example - Look photo-face book-
human vs machine
✓ Mashing API- Multiple API’s – google map
✓ Scraping – has data- convert to API – website
service
✓ Legalities
Getting Started with an API
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 3

4. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
✓ For new source of information
✓ Our own connected device – New API
✓ What data – how you want to work with that
✓ Front end
✓ Back end
✓ Clear – start writing new API
✓ Security
Writing a New API
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 4

5. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
✓ Implementing the API
✓ An API defines the messages that are sent from
client to server and from server to client.
✓ Most common standards-
✓ REST –access a set of web URL
✓ JSON-RPC- Single web URL
✓ XML-RPC- use XML instead of JSON
✓ Simple Object Access Protocol (SOAP)- XML –
additional Layers
Writing a New API
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 5

6. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
✓ Traditional – HTTP- Request – Response
✓ polling and the so-called “Comet” technologies.
✓ And then, in the section on non-HTTP protocols,
MQTT, XMPP, and CoAP offer alternative
solutions.
✓ Long polling – unidirectional
✓ HTML5 Web Sockets (Bidirectional)
✓ Scaling
Real Time Reactions
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 6

7. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
✓ MQTT- Message Queue TELEMETRY TRANSPORT
✓ MQTT – Messaging Protocol
✓ HTTP- Client/Server Model
✓ MQTT – Publish/Subscribe – Broker
✓ MQTT-S-Zigbee
✓ XMPP-EXTENSIBLE MESSAGING AND PRESENCE
PROTOCOL
✓ XMPP – Messaging Protocol – Instant message service
✓ Constrained Application Protocol (CoAP) – UDP
Other Protocols Protocol
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 7

8. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
Blooms Taxonomy
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 8

9. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
Any Questions/Clarifications/Doubts
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 9

10. Chadalawada
Ramanamma
Engineering
College
(A),
Tirupati.
Department of CSE
Thank you all
11/18/2022 Internet of Things by Dr. Vikram Neerugatti 10