Evlog 0.0.1-beta

This is a prerelease version of Evlog.

dotnet add package Evlog --version 0.0.1-beta

NuGet\Install-Package Evlog -Version 0.0.1-beta

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="Evlog" Version="0.0.1-beta" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Evlog" Version="0.0.1-beta" />
                    

                            Directory.Packages.props

<PackageReference Include="Evlog" />
                    

                            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 Evlog --version 0.0.1-beta

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Evlog, 0.0.1-beta"

#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 Evlog@0.0.1-beta

#: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=Evlog&version=0.0.1-beta&prerelease
                    

                            Install as a Cake Addin

#tool nuget:?package=Evlog&version=0.0.1-beta&prerelease
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Evlog

Wide events structured logging for ASP.NET Core. One comprehensive log event per request instead of scattered log lines.

Quick Start

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddEvlog(options =>
{
    options.Service = "my-api";
    options.Environment = builder.Environment.EnvironmentName;
    options.Pretty = builder.Environment.IsDevelopment();
});

var app = builder.Build();
app.UseEvlog();

Usage

app.MapPost("/api/orders", async (HttpContext context, OrderService orders) =>
{
    var log = context.GetEvlogLogger();

    log.Set(new { User = new { Id = userId, Plan = "premium" } });

    var order = await orders.CreateAsync(userId);
    log.Set(new { Order = new { Id = order.Id, Total = order.Total } });
    log.Info("Order created successfully");

    return Results.Ok(order);
    // Middleware auto-emits the wide event after response
});

Features

Wide events: accumulate context throughout a request, emit once
Zero-alloc hot path: typed Set() overloads and SetJson() for performance-critical code
Ergonomic API: Set(new { ... }) for familiar anonymous object syntax
Head + tail sampling: control log volume with per-level rates and keep rules
ILogger integration: capture third-party library logs into the wide event
Structured errors: EvlogError with Why/Fix fields, auto-mapped to ProblemDetails
Pretty dev output: colored, tree-formatted output for local development

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.

net10.0
- No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
0.0.1-beta	49	3/3/2026