![]() ✅ Accessing a missing property of an array item we get null: variables('varArray')? = null empty(variables('varArray')? ) = true ✅ Accessing the properties of each item in the JSON array: variables('varArray')? = "Apple" JSON Objects are surrounded by curly braces “ I will create and use the following simple JSON object in examples below: Example 1: JSON object, properties, keys and values I mostly use the bracket notation but read the examples below and decide for yourself. As neither notations are complicated we never needed to concern ourselves with the different notations.īut as you start to read posts on Power Automate and complete online courses or tutorials, one thing you notice is that you can use different JSON notations syntax for querying JSON data and sometimes these notations do make a difference to how your flows run.Įventually the question is asked “ which one should I use with Power Automate?“. We are generally taught these notations are more or less the same it’s just a matter of personal preference. New developers and flow builders (including myself) tended to stick with the method that was taught to us on courses or tutorials. There are two common ways to access properties in JSON objects: If not, see “Learn everything you need to know about JSON in 10 minutes” JSON Crash Course. I’ll introduce the basics of JSON, but I’m assuming that you some familiarity with JSON. You will learn how to read JSON values and stop your flows from throwing an error! The purpose of this post is to illustrate through examples, JSON notation that often confuses beginners. Whenever there’s an output from any Power Automate action behind the scenes it will be JSON. JSON data is a very important part of web programming because it allows an easy mechanism for transporting data between programs and programming languages.Īlthough Power Automate is a low-code application, having a good working knowledge of JSON and knowing how to create and use JSON data is very important when working with flows. JSON stores information in an organised and easy-to-access way. JSON is a text-based format for encoding data in a human readable form. JSON stands for JavaScript Object Notation. ⛔ A Final Note: Sometimes you NEED your flow to stop with an Error!.Example 6: Handling NULL or Empty values.Example 5: What happens when you try accessing a missing property using the notation with a QUESTION mark?.Example 4: What happens when you try to access a missing property?.Example 2: Initialize a variable of type Object.Example 1: JSON object, properties, keys and values.This post illustrates through examples JSON notation that often confuses beginners.
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