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Mastering Internet of Things

You're reading from   Mastering Internet of Things Design and create your own IoT applications using Raspberry Pi 3

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Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788397483
Length 410 pages
Edition 1st Edition
Concepts
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Author (1):
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Peter Waher Peter Waher
Author Profile Icon Peter Waher
Peter Waher
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Toc

Table of Contents (18) Chapters Close

Preface 1. Preparing Our First Raspberry Pi Project 2. Creating a Sensor to Measure Ambient Light FREE CHAPTER 3. Creating an Actuator for Controlling Illumination 4. Publishing Information Using MQTT 5. Publishing Data Using HTTP 6. Creating Web Pages for Your Devices 7. Communicating More Efficiently Using CoAP 8. Interoperability 9. Social Interaction with Your Devices Using XMPP 10. The Controller 11. Product Life Cycle 12. Concentrators and Bridges 13. Using an Internet of Things Service Platform 14. IoT Harmonization 15. Security for the Internet of Things 16. Privacy 17. Other Books You May Enjoy

Introducing the HTTP protocol

The Hypertext Transfer Protocol, or HTTP, is one of the best known and most used internet protocols today. It was originally designed in 1989 by Tim Berners-Leeas a means to publish hypertext documents on a distributed set of servers, today called web servers. Clients, for example web browsers, would be able to fetch these documents using the HTTP protocol. Hyper, meaning beyond in the word hypertext, literally means beyond the text, signifying the possibility to link to other hypertext documents from within the text itself. These referenced documents may in turn reside on other servers. To achieve this, each document, or resource, is assigned a Uniform Resource Locator or URL. This URL is treated as a simple string but contains all the information the client needs to find and download the contents of the resource.

Resources on the web are not necessarily...

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