Azure Monitor Telemetry

A lightweight, high-performance library for tracking and publishing telemetry to Azure Monitor.

Developed by Stas Sultanov, this library is designed for efficiency, prioritizing speed and minimal memory usage.

If this library benefits a business, consider supporting the author.

Getting Started

To install the library, use the following command:

dotnet add package Stas.Azure.Monitor.Telemetry

For further instructions on how to use the library please read this document.

Why This Library?

Any qualified engineer will naturally ask: why use this library if Microsoft provides the official SDK(s)?

Well, there are several compelling reasons why the author chose to invest life time and effort into creating this library:

• Microsoft.ApplicationInsights has flaws in implementation.
  For instance, take a look on the way how it handles Entra based authentication.
  The implementation has an issue, which is described by the author here.
• Microsoft.ApplicationInsights does not reference NET462 directly, which support end on 12 Jan 2027.
  The Microsoft library references NET452 and NET46 which support ended on 26 Apr 2022.
• Microsoft.ApplicationInsights considered for deprecation.
  As for Dec 2024 Microsoft recommends switching to Azure Monitor OpenTelemetry Distro.
• The OpenTelemetry is not designed to be used for plugins development.
  The library heavily rely on use of static data which does not implement thread safe singleton pattern.
• Both Microsoft.ApplicationInsights and OpenTelemetry are extremely heavy in some applications like NET462.
  This increases memory consumption and time to start.
  Take a look at the comparison.

Libraries Size Comparison

A comparison of library sizes and file counts when used with Entra-based authentication:

Package(s)	NET462	NET8	NET9
Stas.Azure.Monitor.Telemetry 1.0.0	Files: 1 Size: 42KB	Files: 1 Size: 42KB	Files: 1 Size: 42KB
Microsoft.ApplicationInsights 2.23.0 Azure.Core 1.13.2	Files: 112 Size: 4639KB	Files: 5 Size: 945KB	Files: 5 Size: 945KB
OpenTelemetry 1.11.1 Azure.Monitor.OpenTelemetry.Exporter 1.13.0	Files: 126 Size: 5243KB	Files: 32 Size: 2386KB	Files: 26 Size: 2233KB

Support the Author

Donations help the author know that the time and effort spent on this library is valued.

The author resides in a country affected by heavy military conflict since February 2022, making it extremely difficult to find stable employment. Donation provides significant support during these challenging times.

If you’d like to make a donation, please use the button below.

Thank you for your support!