Скачать или смотреть How to Add Objects to a Blank Array in a JSON File Using PowerShell

Discover a step-by-step guide on how to easily `manipulate JSON` data in PowerShell to add objects into a blank array. Suitable for beginners and seasoned users alike!
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This video is based on the question https://stackoverflow.com/q/68464414/ asked by the user 'jp nayak' ( https://stackoverflow.com/u/9140432/ ) and on the answer https://stackoverflow.com/a/68465772/ provided by the user 'Manuel Batsching' ( https://stackoverflow.com/u/565359/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Introduction

Working with JSON files is common in many programming scenarios, and the ability to manipulate JSON data is crucial for developers and IT professionals. If you’re using PowerShell and need to add objects to a blank array in a JSON file, this post is for you!

In this guide, we will tackle a specific scenario: adding values to the “triggers” array in a JSON structure. We will take you through each step, offering an easy-to-follow explanation.

Understanding Your JSON Structure

Before diving into the solution, let's look at the JSON structure you provided. Here’s a simplified version of the relevant part:

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Your goal is to modify this structure by adding an object to the triggers array. This is what you want to achieve:

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Steps to Add an Object to a Blank Array in PowerShell

Now, let’s break down the steps you need to perform in PowerShell to add the desired object to the “triggers” array.

Step 1: Read the JSON File

Start by importing the existing JSON file into a PowerShell object. This is essential as it allows you to manipulate the JSON data easily.

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Step 2: Define the Object You Want to Add

Next, you'll define the object that you want to add to the triggers array. In this example, we will create a new object using an ordered hashtable.

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Step 3: Add the Object to the Array

Once you have defined your object, the next step is to append it to the triggers array in the JSON object.

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Step 4: Export the Modified JSON Back to a File

Finally, convert the modified PowerShell object back to JSON format and save it to a new JSON file.

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Optional: Importing Trigger Definitions from Another File

As an alternative, if you have trigger definitions saved in another JSON file, you can import those directly rather than manually defining them in your script.

Conclusion

By following these steps, you can successfully add objects to a blank array in a JSON file using PowerShell. This method provides a straightforward approach to manipulating JSON data, making it easy for you to manage complex data structures in your scripting tasks.

Whether you are a beginner learning the ropes or a seasoned pro looking to refine your PowerShell skills, mastering JSON manipulation is a valuable asset. Happy scripting!