Code to write the log files - Cardinal Solutions ALF blog post

write-to-log.js

var writeToLog = function(project, service, data){

    var date = new Date();
    var directory = properties.baseDir + '/logs';

    fs.exists(directory, function (exists) {
        if (!exists){
            fs.mkdirSync(directory);
        }
        for (var key in data) {
            var file = project + '_'+ service + '_' + key + '.log';
            var logPathFile = directory + '/' + file;
           
            if (data[key]){
                var consoleMsg = key + '\t[' + service.toUpperCase() + ']\n' + data[key] + '\n\n';
                
                if (properties.logToConsole){
                    console.log(consoleMsg);
                }
                
                var msg = date + '\t[' + service.toUpperCase() + ']\n' + data[key] + '\n\n';
               
                fs.appendFile(logPathFile, msg, function(err) {
                    if(err) {
                        console.log('Unable to write to log file: ' + logPathFile);
                        console.log(err);
                        return false;
                    }

                }); 
            }
        }    
    });
    return true;
}