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Creating an Array from JSON Object in Delphi

A guide on how to create an array from a JSON object and search through it effectively in Delphi applications. --- This video is based on the question https://stackoverflow.com/q/69944812/ asked by the user 'Antonis' ( https://stackoverflow.com/u/15879830/ ) and on the answer https://stackoverflow.com/a/69949468/ provided by the user 'Remy Lebeau' ( https://stackoverflow.com/u/65863/ ) 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: Create an Array from Json Object 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. --- Efficiently Creating an Array from a JSON Object in Delphi In today's blogging session, we tackle a common problem faced by many Delphi developers – creating an array from a JSON object and efficiently searching through it for specific values. JSON (JavaScript Object Notation) is widely used for data interchange, and learning how to manipulate it in Delphi will streamline your application development. Understanding the Problem Imagine you have a JSON data structure that resembles the following: [[See Video to Reveal this Text or Code Snippet]] You want to enable your user to enter a code into a text editor and check whether that code exists within the JSON structure. The goal is to create an array that contains all values from the Code field, like so: [[See Video to Reveal this Text or Code Snippet]] Creating the Array from JSON Let's break down the solution step-by-step to create that array and search for a specific value. Step 1: Fetching JSON Data First, you need to fetch your JSON data from the web. Make sure your code can handle connectivity issues gracefully. Step 2: Parsing the JSON Once you have the data, you will parse the JSON and extract the Code values. This is where many fall short – comparing the entire object instead of its specific field: [[See Video to Reveal this Text or Code Snippet]] Step 3: Iterating Over JSON Array You need to iterate through each object within the JSON array. Here’s how you can achieve this correctly without any unnecessary checks: [[See Video to Reveal this Text or Code Snippet]] Full Code Example Bringing it all together, here’s the complete procedure that you can use in your Delphi application: [[See Video to Reveal this Text or Code Snippet]] Conclusion By following these steps, you can effectively create an array from a JSON object in Delphi and search through it with ease. This not only enhances the functionality of your application but also improves your coding skills in handling JSON. Feel free to leave your thoughts or any questions you may have regarding working with JSON in Delphi!