Fluens.Observability 0.7.9

.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Fluens.Observability --version 0.7.9
                    


                    

                
NuGet\Install-Package Fluens.Observability -Version 0.7.9
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Fluens.Observability" Version="0.7.9" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Fluens.Observability" Version="0.7.9" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Fluens.Observability" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Fluens.Observability --version 0.7.9
                    


                    

                
#r "nuget: Fluens.Observability, 0.7.9"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Fluens.Observability@0.7.9
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Fluens.Observability&version=0.7.9
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Fluens.Observability&version=0.7.9
                    


                            Install as a Cake Tool

Fluens.Observability

OpenTelemetry tracing, metrics, logging, and Serilog structured logging integration with optional Seq sink.

Installation

dotnet add package Fluens.Observability

Usage

fluensBuilder
    .AddObservability(opts =>
    {
        opts.OtlpEndpoint = "http://localhost:4317";
        opts.SamplingRatio = 1.0;
    })
    .AddSerilog();

ObservabilityOptions properties: Enabled, EnableTracing, EnableMetrics, EnableLogging, OtlpEndpoint, SamplingRatio, AdditionalSources, AdditionalMeters, SeqEndpoint, SeqApiKey.

Configuration section: Fluens:Observability.

Both AddObservability and AddSerilog accept optional configuration callbacks for inline customization. A callback-only AddObservability(o => ...) call — with no matching Fluens:Observability configuration section present — is still honoured and validated: the callback's values reach the composed ObservabilityOptions instance.

AddSerilog() and AddObservability() can be called in either order: AddSerilog() reads ObservabilityOptions (for the optional Seq sink) lazily, when the logger is actually built rather than when AddSerilog() itself is called, so the Seq sink is activated correctly whether AddObservability(o => o.SeqEndpoint = "...") runs before or after AddSerilog().

When Enabled is true, AddObservability() also registers the composed ObservabilityOptions as a marker singleton in DI. Fluens.Web.Observability's UseRequestLogging() and UsePrometheusEndpoint() probe that singleton to tell "enabled" from "disabled via callback/config" or "AddObservability() never called" - so a host that calls them unconditionally always starts cleanly.

LogSanitizer

Static helpers for redacting PII from log messages. Uses [GeneratedRegex] for AOT-compatible pattern matching.

LogSanitizer.Redact(value);          // Replaces entire value with ***REDACTED***
LogSanitizer.MaskEmail(value);       // Preserves first two chars of local part and full domain
LogSanitizer.MaskCardNumber(value);  // Preserves last four digits
LogSanitizer.MaskPhone(value);       // Preserves last four digits

License

This project is licensed under the MIT License.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1)

Showing the top 1 NuGet packages that depend on Fluens.Observability:

Package Downloads
Fluens.Web.Observability

ASP.NET Core observability features: Prometheus metrics endpoint and request logging middleware.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
0.7.9 41 9/11/2026
0.7.8 64 9/10/2026
0.7.7 63 9/10/2026
0.7.6 148 7/1/2026
0.7.5 125 6/22/2026
0.7.4 136 6/18/2026
0.7.2 120 6/18/2026
0.7.1 137 6/18/2026
0.6.6 278 3/11/2026
0.6.5 115 3/4/2026
0.6.4 113 3/4/2026
0.6.3 122 3/3/2026
0.6.2 123 3/2/2026
0.6.1 127 3/2/2026
0.6.0 127 3/1/2026
0.5.7 125 3/1/2026
0.5.6 125 3/1/2026
0.5.5 126 2/28/2026
0.5.4 116 2/28/2026
0.5.3 124 2/27/2026
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