What's New in Logging 7.0.3

We moved logging extensions from BackgroundService project to new Logging project to maintain it in general.

Quick access

File logger provider

Fixed unexpected error on stopping Windows service

Sometimes you may receive an error message when trying to stop a service on Windows because it cannot be stopped properly.

Change scopes behavior

You can now use OperationState scope inside TraceId, so there is two ways to use OperationState

Original usage (yes, it still works):

string? state;
// {Logging:File:Directory}/{ServiceDescription}/{TraceId} - {Operation}.log
using (_logger.BeginScope(new List<KeyValuePair<string, object>>
{
    new KeyValuePair<string, object>("TraceId", TraceId),
    new KeyValuePair<string, object>("Operation", Operation)
})){
    // job processing
    _logger.LogInformation("Begin invoke");
    state = await InvokeAsync();
}

// {Logging:File:Directory}/{ServiceDescription}/{TraceId} - {Operation}_{OperationState}.log
// {Logging:File:Directory}/{ServiceDescription}/{TraceId} - {Operation}_{OperationState} ({increased number}).log
using (_logger.BeginScope(new List<KeyValuePair<string, object>>
{
    new KeyValuePair<string, object>("TraceId", TraceId),
    new KeyValuePair<string, object>("Operation", Operation),
    new KeyValuePair<string, object>("OperationState", state)
})){
    // job is completed with state
    _logger.LogInformation("Invoke result: {0}", state);
}

// scopes ["Task", "Success"]    
using (_logger.BeginScope("Task"))
using (_logger.BeginScope("Success"))
{
    _logger.LogInformation("Invoked");
}

Now it’s more natural:

// {Logging:File:Directory}/{ServiceDescription}/{TraceId} - {Operation}.log
using (_logger.BeginScope(new List<KeyValuePair<string, object>>
{
    new KeyValuePair<string, object>("TraceId", TraceId),
    new KeyValuePair<string, object>("Operation", Operation)
})){
    // job processing
    _logger.LogInformation("Begin invoke");
    var state = await InvokeAsync();
    // {Logging:File:Directory}/{ServiceDescription}/{TraceId} - {Operation}_{OperationState}.log
    // {Logging:File:Directory}/{ServiceDescription}/{TraceId} - {Operation}_{OperationState} ({increased number}).log
    using (_logger.BeginScope(new List<KeyValuePair<string, object>>
    {
        new KeyValuePair<string, object>("OperationState", state)
    })){
        // job is completed with state
        _logger.LogInformation("Invoke result: {0}", state);
    }
}

// scopes ["Task", "Success"]
using (_logger.BeginScope(new string[]{"Task", "Success"}))
{
    _logger.LogInformation("Invoked");
}

Write log scopes to file

Any log scopes specified by the string will be written to the log file. See Log scopes

Naming convention

Correcting directory patterns:

Unnamed service: {Logging:File:Directory}/General/
Named service: {Logging:File:Directory}/{ServiceDescription}/

Correcting file name patterns:

Default: {yyyy_MM_dd-HHmm}.log
Job: {TraceId} - {Operation}.log
Job has state: {TraceId} - {Operation}_{OperationState}.log
Job has re-run: {TraceId} - {Operation}_{OperationState} ({increased number}).log

Configurable write interval

You can now configure the BufferTime to decide how long to buffer before log entries are written to the file

SignalR logger provider

Supported logging to SignalR hub here.

Db logger provider

Supported logging to SignalR hub here.