Custom Filters

Implement ILogFilter to create your own filter:

using Logix.Abstractions;

public class KeywordFilter : ILogFilter
{
    private readonly string[] _keywords;

    public KeywordFilter(params string[] keywords) => _keywords = keywords;

    public bool ShouldLog(LogMessage msg)
    {
        if (msg.Message == null) return true;
        foreach (var kw in _keywords)
            if (msg.Message.ToString().Contains(kw, StringComparison.OrdinalIgnoreCase))
                return true;
        return false;
    }
}

ShouldLog receives the full LogMessage:

Field	Type	Description
Created	DateTime	Timestamp (local)
Level	LogLevel	Severity
Message	object?	The log message
File	string?	Caller source path
Line	int	Caller line number
StackTrace	StackTrace?	Call stack

Registration

Log.Container.AddFilter(new KeywordFilter("urgent", "critical"));

For per-sink filters on a CloudLogSink:

mySink.AddFilter(new KeywordFilter("urgent"));
mySink.RemoveFilter(filter);
mySink.ClearFilters();