Discussing the article: "Crypto Exchange Integration with MQL5 (Part 1): Connecting to MEXC Futures"

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This article introduces the foundations of connecting MetaTrader 5 to a cryptocurrency exchange using MQL5 and the MEXC Futures API. It covers terminal configuration, JSON response processing, WebRequest() execution and validation, and conversion of API data into native MQL5 types. Practical examples demonstrate retrieving and processing exchange data. These components establish the basis for a reusable MEXC Futures client, developed progressively throughout the series. The series focuses exclusively on exchange integration; how readers use the retrieved data remains outside its scope.

In this series, we will explore how to build an exchange integration with MQL5, using MEXC Futures as an example and communicating with the exchange through its REST API and WebSocket connections. In this first article, we will focus on the common components required to communicate with the MEXC Futures REST API: how to configure the MetaTrader 5 terminal to perform requests using WebRequest(), how to use and adapt a JSON library to process API responses, and how to convert the received data into native MQL5 types. These components will then be used in some practical examples covering two public MEXC Futures endpoints: server time and transferable currencies.

Rather than creating a separate implementation for each endpoint, we will build on the components described in the sections below and extend them with the additional parsing functions required by the new endpoints.

This article is provided for educational purposes only. The code examples are intended to demonstrate how to interact with the MEXC Futures API using MQL5 and should be tested thoroughly before being used in a live trading environment. The author is not responsible for any losses or damages resulting from the use of the code provided.

Author: Ruben Blanco