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Check out the new article: Mastering JSON: Create Your Own JSON Reader from Scratch in MQL5.
Experience a step-by-step guide on creating a custom JSON parser in MQL5, complete with object and array handling, error checking, and serialization. Gain practical insights into bridging your trading logic and structured data with this flexible solution for handling JSON in MetaTrader 5.
In this article, we aim to fill that gap by demonstrating how to create your own JSON reader in MQL5. Along the way, we’ll explore the fundamental concepts of parsing JSON, walking through the creation of a flexible class structure capable of handling different JSON element types (like objects, arrays, strings, numbers, booleans, and null values). Our end goal is to empower you to comfortably parse JSON strings and access or modify the data within them, all from the convenience of your MetaTrader 5 environment.
We will follow a structure similar to what we’ve seen in other MQL5-related articles but with a focus specifically on JSON parsing and usage. This single article will be divided into five main sections: an introduction (the one you’re reading now), a deeper dive into the fundamentals of JSON and how it fits within MQL5, a step-by-step guide to building a basic JSON parser from scratch, an exploration of advanced features for JSON handling, and finally a comprehensive code listing plus concluding thoughts.
Author: Sahil Bagdi