EventHubLogger

Implementation of .netcore ILogger for Azure Event Hub

Installation

First, install the Daenet.Common.Logging.EventHub NuGet Package into your application.

Install-Package Daenet.Common.Logging.EventHub

Usage

Following code block, shows how to add EventHubLogger provider to the loggerFactory in EventHubLoggerUnitTests class:

  private void initializeEventHubLogger(Func<string, LogLevel, bool> filter,
              Func<LogLevel, EventId, object, Exception, EventData> eventDataFormatter = null,
           Dictionary<string, object> additionalValues = null)
        {
            ConfigurationBuilder cfgBuilder = new ConfigurationBuilder();
            cfgBuilder.AddJsonFile("EventHubLoggerSettings.json");
            var configRoot = cfgBuilder.Build();

            ILoggerFactory loggerFactory = new LoggerFactory()
                .AddEventHub(configRoot.GetEventHubLoggerSettings(), filter, eventDataFormatter, additionalValues);

            m_Logger = loggerFactory.CreateLogger<EventHubLoggerUnitTests>();
        }

Following configuration needs to be added in the EventHubLogger>settings.json file.

{
 "IncludeScopes": true,
"Switches": {
 "Daenet.Common.EventHubLogger.UnitTests": 0
},
"EventHub": {
 "ConnectionString": "EventHub Connection String",
 "IncludeExceptionStackTrace": false,
 "RetryPolicy": 0
}
}

The message logged to EventHub will look like:

"body": {
     "Name": "Daenet.Common.EventHubLogger.UnitTests.EventHubLoggerUnitTests",
     "Scope": null,
     "EventId": "0",
     "Message": "Test Warning Log Message",
     "Level": 3,
     "LocalEnqueuedTime": "2017-07-04T17:32:46.3321255+02:00",
     "Exception": null,
     "{OriginalFormat}": "Test Warning Log Message"
   }