Скачать с ютуб How to Dynamically Update JSON Values in PowerShell with Set-ByPath Functionality в хорошем качестве

How to Dynamically Update JSON Values in PowerShell with Set-ByPath Functionality

Learn how to effectively update JSON values in PowerShell using a dynamic approach with the `Set-ByPath` function. This guide will help you understand the process step-by-step. --- This video is based on the question https://stackoverflow.com/q/70156784/ asked by the user 'AdamCodes716' ( https://stackoverflow.com/u/13382745/ ) and on the answer https://stackoverflow.com/a/70156951/ provided by the user 'Mathias R. Jessen' ( https://stackoverflow.com/u/712649/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Powershell: Trying to set value in json Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- How to Dynamically Update JSON Values in PowerShell with Set-ByPath Functionality PowerShell is a powerful scripting language that provides users with easy ways to manage JSON files. However, one common challenge developers face is updating specific values in a JSON object dynamically. This guide will guide you through solving the problem of setting a value in a nested JSON structure when only a path string to that value is known. The Problem Imagine you have a JSON file that looks something like this: [[See Video to Reveal this Text or Code Snippet]] You have the path to the value you want to change stored as a string in a variable called $name. For example: [[See Video to Reveal this Text or Code Snippet]] You want to update the loginName under primaryContact to a new value, but you're unsure how to dynamically reference that nested structure. Attempting to execute the following command: [[See Video to Reveal this Text or Code Snippet]] will lead to an error: [[See Video to Reveal this Text or Code Snippet]] Understanding the Issue The error arises because PowerShell tries to resolve $name as a single property, leading it to search for a property named primaryContact.loginName. Instead, you need to navigate down through each level of the object individually to set the desired value. The Solution: Using the Set-ByPath Function To successfully update a nested JSON property with a dynamic path, you'll need to create a custom function—let's call it Set-ByPath. This function will take three parameters: $RootObject: The root JSON object you're working with. $Path: The path string to the specific value you want to change. $NewValue: The new value you want to set. Step-by-Step Breakdown Here’s how to implement the Set-ByPath function: [[See Video to Reveal this Text or Code Snippet]] Using the Function With the Set-ByPath function defined, you can easily update your JSON data. Here’s how you can use it: [[See Video to Reveal this Text or Code Snippet]] This code performs the following: Defines a Path: The string variable $name contains the path to the value you want to update. Loads JSON Data: Converts a JSON string into a PowerShell object. Calls the Function: Uses the Set-ByPath function to update the loginName field. Conclusion With the Set-ByPath function, you can dynamically update values in nested JSON structures by referencing paths in a simple string format. This not only simplifies your scripting tasks but also enhances the overall flexibility of your scripts. Next time you need to update a JSON file in PowerShell, use this method, and make your coding life much easier!