Purview Telemetry Source Generator

Generates ActivitySource, High-performance logging and Metrics based on methods on an interface, enabling fast iteration cycles, dependency injection and substitutes for testing.

The latest version is available on NuGet, and supports generating for the following frameworks:

• .NET Framework 4.7.2
• .NET Framework 4.8
• .NET 7
• .NET 8
• .NET 9

[ActivitySource]
[Logger]
[Meter]
interface IEntityStoreTelemetry
{
    /// <summary>
    /// Creates and starts an Activity and adds the parameters as Tags and Baggage.
    /// </summary>
    [Activity]
    Activity? GettingEntityFromStore(int entityId, [Baggage]string serviceUrl);

    /// <summary>
    /// Adds an ActivityEvent to the Activity with the parameters as Tags.
    /// </summary>
    [Event]
    void GetDuration(Activity? activity, int durationInMS);

    /// <summary>
    /// Adds the parameters as Baggage to the Activity.
    /// </summary>
    [Context]
    void RetrievedEntity(Activity? activity, float totalValue, int lastUpdatedByUserId);

    /// <summary>
    /// Generates a structured log message using an ILogger.
    /// </summary>
    [Log]
    void ProcessingEntity(int entityId, string updateState);

    /// <summary>
    /// Adds 1 to a Counter<T> with the entityId as a Tag.
    /// </summary>
    [AutoCounter]
    void RetrievingEntity(int entityId);
}

For more information see the wiki.