Common Trading APIs for Price Data, Indicators, and Orders
Summary
This introductory guide explains APIs through everyday analogies and shows how trading code uses them to request market data, calculate indicators, place orders, and inspect account state. Its M-language examples cover open, high, low, close, volume, references to earlier bars, moving averages, crossover conditions, and commands for opening, closing, or reversing positions. JavaScript examples demonstrate selecting a trading instrument and calling functions for tickers, K-line data, orders, balances, positions, logging, and pauses.
The examples illustrate basic syntax and how API calls fit into a simple strategy workflow; the article does not evaluate a trading strategy or provide market-performance evidence. Some descriptions and examples appear inconsistent, including a mistaken explanation of the opening-price field and an imprecise description of selling. Readers should check the platform documentation and confirm order semantics before relying on the examples. The tutorial’s main value is as a beginner’s orientation to common platform interfaces.
Key ideas
- An API provides a documented way to request data or invoke platform functions without knowing their internal implementation.
- M-language examples show price and volume fields, historical references, moving averages, and crossover conditions.
- The guide lists commands for opening, closing, and reversing long or short positions.
- JavaScript examples cover market data, account and position queries, orders, logging, and pauses.
- Some example descriptions are inaccurate, so API behavior should be confirmed against current platform documentation.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.