/+dub.sdl:

dependency "vibe-core" version="~>1.9.2"

+/

​

import vibe.core.log;

​

void registerAppLoggers()

{

    registerLogger(cast(shared)new FileLogger("applog.txt"));

}

​

void main()

{

    logTrace("Registering loggers");

    registerAppLoggers();

    logWarn("now logging with %d loggers", getLoggers().length);

    logError("ERROR: something unexpected happened");

    dumpFileOutput();

}

​

// print out our registered applog.txt output for the run.dlang.io output

void dumpFileOutput()

{

    import std.stdio;

    writeln("\n\napplog.txt:");

    foreach (chunk; File("applog.txt").byChunk(4096))

        stdout.rawWrite(chunk);

    stdout.flush();

}