Intro to JSON for Node-RED

Learn the basics of JSON for the IoT. This video shows the structure and real-world use of JavaScript Object Notation or "JSON". Everything you need to know is covered: the different types of values that can be used, the required syntax, and how to reference specific properties. To bring it into the real world, Node-RED is used to show how easy it is to use JSON with live data from an API.

00:00 Introduction
01:21 Generic example
02:15 String value
02:52 Additional number properties
03:26 Boolean properties
03:59 The "no value" null keyword
04:46 Storing multiple values in ordered lists
05:35 Objects as values
06:19 Referring to sub-properties
06:51 Real-world weather data
07:38 Viewing JSON in "PrettyPrint"
08:15 Viewing JSON in the Node-RED debug pane
09:37 Grabbing a specific value
10:33 Getting the path to a sub-property
11:16 Getting data from arrays
12:14 Conclusion

Learn More:
https://www.opto22.com/
https://nodered.org/docs/user-guide/m...
https://www.json.org/json-en.html
https://discourse.nodered.org/
https://forums.opto22.com/

More FREE online training
https://training.opto22.com/

OpenWeatherMap tutorials:
Quickly Get OpenWeatherMap API Data w...
How to use APIs with Node-RED: OpenWe...

All Opto 22 products are designed, manufactured, and supported in the U.S.A. from our Temecula, California headquarters and factory.
#api #nodered #node #groov #JSON #IoT #Tutorial #learnprogramming #programming #IIoT #automation #javascript

• #education
• #automation
• #opto_22
• #opto
• #opto22
• #automatizacion_y_control_industrial
• #groov
• #groov_epic
• #groov_rio
• #opto_22_groov
• #iot
• #iiot
• #opto_programming
• #node_red
• #json
• #tutorial
• #learn_json
• #intro_to_json
• #javascript_object_notation
• #learn_programming
• #opto_programming
• #programming
• #json_tutorial