Support adding default tags as discrete values in LoggerConfiguration… (#12)

Author: peef

src/Serilog.Sinks.Exceptionless/LoggerSinkConfigurationExtensions.cs

@@ -32,13 +32,14 @@ public static LoggerConfiguration Exceptionless(
             if (apiKey == null)
                 throw new ArgumentNullException(nameof(apiKey));
 
-            return loggerConfiguration.Sink(new ExceptionlessSink(apiKey, null, additionalOperation, includeProperties), restrictedToMinimumLevel);
+            return loggerConfiguration.Sink(new ExceptionlessSink(apiKey, null, null, additionalOperation, includeProperties), restrictedToMinimumLevel);
         }
-        
+
         /// <summary>Creates a new Exceptionless sink with the specified <paramref name="apiKey"/>.</summary>
         /// <param name="loggerConfiguration">The logger configuration.</param>
         /// <param name="apiKey">The API key that will be used when sending events to the server.</param>
         /// <param name="serverUrl">Optional URL of the server events will be sent to.</param>
+        /// <param name="defaultTags">Default tags to be added to every log event.</param>
         /// <param name="additionalOperation">Any additional operation to run against the build exceptions</param>
         /// <param name="includeProperties">If false it suppressed sending the Serilog properties to Exceptionless</param>
         /// <param name="restrictedToMinimumLevel">The minimum log event level required in order to write an event to the sink.</param>
@@ -48,6 +49,7 @@ public static LoggerConfiguration Exceptionless(
             this LoggerSinkConfiguration loggerConfiguration,
             string apiKey,
             string serverUrl = null,
+            string[] defaultTags = null,
             Func<EventBuilder, EventBuilder> additionalOperation = null,
             bool includeProperties = true,
             LogEventLevel restrictedToMinimumLevel = LevelAlias.Minimum
@@ -58,7 +60,7 @@ public static LoggerConfiguration Exceptionless(
             if (apiKey == null)
                 throw new ArgumentNullException(nameof(apiKey));
 
-            return loggerConfiguration.Sink(new ExceptionlessSink(apiKey, serverUrl, additionalOperation, includeProperties), restrictedToMinimumLevel);
+            return loggerConfiguration.Sink(new ExceptionlessSink(apiKey, serverUrl, defaultTags, additionalOperation, includeProperties), restrictedToMinimumLevel);
         }
 
         /// <summary>Creates a new Exceptionless sink.</summary>

src/Serilog.Sinks.Exceptionless/Sinks/Exceptionless/ExceptionlessSink.cs

@@ -13,6 +13,7 @@ namespace Serilog.Sinks.Exceptionless {
     /// Exceptionless Sink
     /// </summary>
     public class ExceptionlessSink : ILogEventSink, IDisposable {
+        private readonly string[] _defaultTags;
         private readonly Func<EventBuilder, EventBuilder> _additionalOperation;
         private readonly bool _includeProperties;
 
@@ -27,6 +28,9 @@ public class ExceptionlessSink : ILogEventSink, IDisposable {
         /// <param name="serverUrl">
         /// Optional URL of the server events will be sent to.
         /// </param>
+        /// <param name="defaultTags">
+        /// Default tags to be added to every log event.
+        /// </param>
         /// <param name="additionalOperation">
         /// Optional operation to run against the Error Builder before submitting to Exceptionless
         /// </param>
@@ -36,6 +40,7 @@ public class ExceptionlessSink : ILogEventSink, IDisposable {
         public ExceptionlessSink(
             string apiKey,
             string serverUrl = null,
+            string[] defaultTags = null,
             Func<EventBuilder, EventBuilder> additionalOperation = null,
             bool includeProperties = true
         ) {
@@ -53,6 +58,7 @@ public ExceptionlessSink(
                 config.UseLogger(new SelfLogLogger());
             });
 
+            _defaultTags = defaultTags;
             _additionalOperation = additionalOperation;
             _includeProperties = includeProperties;
         }
@@ -89,6 +95,8 @@ public void Emit(LogEvent logEvent) {
 
             var builder = _client.CreateFromLogEvent(logEvent);
 
+            builder.AddTags(_defaultTags);
+
             if (_includeProperties && logEvent.Properties != null) {
                 foreach (var prop in logEvent.Properties)
                 {