Simplest Logger class for Meta Trader 5
Info
The Simplest Logger class for Meta Trader 5 is a Library for MetaTrader 5 that every programmer has their own logger. I wrote my own for MQL5, inspired by the Python logging module.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Library works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Libraries folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use Simplest Logger class for Meta Trader 5
1. Storage: Place library files in the MQL/Libraries directory to ensure they are accessible to your projects.
2. Implementation: Include the library in your code using the #import directive, ensuring you match the exact function names and parameters.
3. Compilation: Ensure the library is present in the directory before you compile your main EA or script, as the compiler links them during this phase.
4. Management: Keep libraries organized in sub-folders if you manage many custom functions to maintain a clean project structure.
Frequently Asked Questions
Q: What is a library file used for? A: Libraries store reusable code modules, allowing you to centralize common logic used by multiple EAs or indicators.
Q: Is a library executable? A: No, libraries are non-executable files containing functions; they must be imported into an EA, indicator, or script to function.
Q: Can I update a library while the platform is running? A: You should compile your EA or script after updating a library to ensure the latest code changes are integrated.
What this tool does
Every programmer has their own logger.
Typical Use Case
This Library excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Library works on MetaTrader 5. Place the file in the MQL5/Libraries folder and restart the terminal.
Description & Settings
Related: CTs Logger - Simple and Flexible Logger - another powerful library for MetaTrader 5 traders.
Every programmer has their own logger. I wrote my own for MQL5, inspired by the Python logging module.
Also recommended: CTs Logger is a simple and flexible logging system - similar library with strong performance on MetaTrader 5.
This class is simplest. No hierarchy, rotators or formatters. It's simple and convenient for any project.Installation
Copy CDKLogger.mqh to MQL\Include\DKStdLib\Logger folder.
Import CDKLogger class. Usage
The following messages will be output to the log as a result of execution:
Open issues
I often use class this way:
But here we have an issue. StringFormat function parse string every time, even if the logging level does not require the message to be output.
If you need to output debug messages a lot, you'll have to wrap the output in a condition:
The best way to do this would be to use StringFormat lazily,
but unfortunately MQL5 doesn't support passing a dynamic number of function parameters
to the Debug, Info, Error, and so on functions.
If you have any ideas on how this could be done, I'd love to hear them.
You may also like: Database Wrapper - excellent alternative for library users on MetaTrader 5.
⚠ Limitations & Risk Warning
- This tool is provided for educational and testing purposes only.
- Past performance does not guarantee future results.
- Trading involves substantial risk of loss. Use on a demo account first.
- Results may vary depending on market conditions, broker, and settings.
- We recommend thorough backtesting and forward testing before using with real funds.