Same log file in multiple projects using serilog

Question

I have a Logger.cs class:

public Logger(string logtype=null)
        {
            _logtype = logtype;
            LogEventLevel level = LogEventLevel.Warning;
            if (File.Exists(configPath))
            {
                XDocument xdoc = XDocument.Load(configPath);
                string val = xdoc.Descendants("logEnabled").First().Value;
                // if(clientConfig.LogEnabled == true)
                if (val == "true")
                {
                    level = LogEventLevel.Debug;

                }
                else if (val == "false")
                {
                    level = LogEventLevel.Warning;
                }
            }
            else
            {
                level = LogEventLevel.Warning;
            }
           _logger = new LoggerConfiguration()
                        .MinimumLevel.Debug()
                         .WriteTo.File(_filepath, level)
                         .CreateLogger();

        }

this logger class is used in multiple projects in a solution. Like shown below:

    Class A {
     Logger _logger = new Logger("A");
    }

Class A1 {
     Logger _logger = new Logger("A");
    }

Class B {
     Logger _logger = new Logger("B");
    }

Class B1 {
     Logger _logger = new Logger("A");
    }

With my above code. Now i can see only the first logging is written to the log file. Class A and Class A1 are using the same log file "A", when my program executes i can see only Class A logging is present in the log but not class A1 logging messages. Same for Class B and Class B1, only class B messages are visible.

How can i use the same log file across multiple project in a solution?

ElasticCode · Accepted Answer · 2019-03-19 09:19:42Z

14

You will need to enable multi-process shared log files, set shared to true

_logger = new LoggerConfiguration()
                .MinimumLevel.Debug()
                .WriteTo.File(_filepath, level, shared: true)
                .CreateLogger();

For more check Shared log files

answered Mar 19, 2019 at 9:19

ElasticCode

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2 Comments

user1066231 Over a year ago

How can this property set via appsetting.json?

ElasticCode Over a year ago

@user1066231 Try "WriteTo": [{ "Name": "File", "Args": { "path": "log.txt", "shared": "true" } }]

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