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How to Read JSON Values in ASP.NET Core Web API

Discover the best methods to extract values from `JSON` data in ASP.NET Core Web API, ensuring efficient data handling. --- This video is based on the question https://stackoverflow.com/q/69234247/ asked by the user 'congying pan' ( https://stackoverflow.com/u/9109659/ ) and on the answer https://stackoverflow.com/a/69234380/ provided by the user 'Serge' ( https://stackoverflow.com/u/11392290/ ) 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: read JSON value in ASP.NET Core web api 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 Read JSON Values in ASP.NET Core Web API Managing JSON data is an integral part of modern web APIs, especially when developing with ASP.NET Core. If you find yourself needing to extract values from JSON structures, like the one below, you’re in the right place! [[See Video to Reveal this Text or Code Snippet]] In this guide, we will explore two effective ways to read JSON values using ASP.NET Core. We’ll leverage both the built-in System.Text.Json library and the popular Newtonsoft.Json package. Let's break this down step by step. Using System.Text.Json The first method utilizes the System.Text.Json namespace, which is included with .NET Core and is designed for high-performance JSON processing. Step 1: Define Your JSON Data To begin, you’ll want to store your JSON string correctly in your code: [[See Video to Reveal this Text or Code Snippet]] Step 2: Deserialize the JSON Next, you will need to convert the JSON string into a C# object. The process is called deserialization, and here’s how you can do it: Import the System.Text.Json namespace. Use JsonSerializer to deserialize your JSON into a defined class structure: [[See Video to Reveal this Text or Code Snippet]] Summary for System.Text.Json Use System.Text.Json for built-in high-performance JSON handling. Deserialize to custom classes that represent the JSON structure. Easy data extraction through class properties. Using Newtonsoft.Json If you prefer more features or are already familiar with Newtonsoft.Json, you can install this package via NuGet and follow a similar approach. Step 1: Install the Package To get started with Newtonsoft.Json, you'll need to install it: [[See Video to Reveal this Text or Code Snippet]] Step 2: Define Your Classes You can reuse the same class definitions shown previously: [[See Video to Reveal this Text or Code Snippet]] Step 3: Deserialize with Newtonsoft.Json Now, you can deserialize the JSON string as follows: [[See Video to Reveal this Text or Code Snippet]] Summary for Newtonsoft.Json Use Newtonsoft.Json for advanced features and flexibility. Similar process of creating classes and deserializing data. Conclusion In this guide, we explored two powerful methods to read JSON values in ASP.NET Core Web API: using System.Text.Json and Newtonsoft.Json. Both approaches effectively allow you to extract data from JSON structures with ease. Feel free to choose the method that best suits your project needs or preferences. Happy coding!