To use the Exceptionless sink, first install the NuGet package:

Install-Package Serilog.Sinks.Exceptionless

Next, we need to ensure that Exceptionless is configured with an API Key. If you are already using Exceptionless you can skip this step.

The Exceptionless sink will use the default ExceptionlessClient client instance. This ensures that all of your Exceptionless configuration is shared with the sink and also enables logging of unhandled exceptions to Exceptionless.

For advanced users who wish to configure the sink to use custom ExceptionlessClient instance you can provide an API Key or ExceptionlessClient instance to WriteTo.Exceptionless().

using Exceptionless;
ExceptionlessClient.Default.Startup("API_KEY");

Next, enable the sink using WriteTo.Exceptionless()

Log.Logger = new LoggerConfiguration()
    .WriteTo.Exceptionless(b => b.AddTags("Serilog Example"))
    .CreateLogger();

To get tags to populate on the exceptionless UI, add a Tags string enumerable to any log.

using var _ = _logger.BeginScope(new Dictionary<string, object> { ["Tags"] = new string[] { "Tag1", "Tag2" }});
_logger.Log(logLevel, eventId, state, exception, formatter);

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