Microsoft.Extensions.Configuration 9.0.0-preview.3.24172.9

About

Microsoft.Extensions.Configuration is combined with a core configuration abstraction under Microsoft.Extensions.Configuration.Abstractions that allows for building different kinds of configuration providers to retrieve key/value pair configuration values from in the form of IConfiguration. There are a number of built-in configuration provider implementations to read from environment variables, in-memory collections, JSON, INI or XML files. Aside from the built-in variations, there are more shipped libraries shipped by community for integration with various configuration service and other data sources.

Key Features

  • In-memory configuration provider
  • Chained configuration provider for chaining multiple confiugration providers together.
  • Base types that implement configuration abstraction interfaces that can be used when implementing other configuration providers.

How to Use

using Microsoft.Extensions.Configuration;

var configurationBuilder = new ConfigurationBuilder();

configurationBuilder.AddInMemoryCollection(
    new Dictionary<string, string?>
    {
        ["Setting1"] = "value",
        ["MyOptions:Enabled"] = bool.TrueString,
    });

configurationBuilder.AddInMemoryCollection(
    new Dictionary<string, string?>
    {
        ["Setting2"] = "value2",
        ["MyOptions:Enabled"] = bool.FalseString,
    });

var config = configurationBuilder.Build();

// note case-insensitive
Console.WriteLine(config["setting1"]);
Console.WriteLine(config["setting2"]);

// note last in wins
Console.WriteLine(config["MyOptions:Enabled"]);

Main Types

The main types provided by this library are:

  • Microsoft.Extensions.Configuration.ConfigurationBuilder
  • Microsoft.Extensions.Configuration.ConfigurationManager
  • Microsoft.Extensions.Configuration.ConfigurationRoot
  • Microsoft.Extensions.Configuration.ConfigurationSection

Additional Documentation

Feedback & Contributing

Microsoft.Extensions.Configuration is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Showing the top 20 packages that depend on Microsoft.Extensions.Configuration.

Packages Downloads
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications. This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/be0a4a7f4cf06cbd6ec714bd1d9afee6bdb040a8
 50
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
 44
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
 36
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
 35
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
 34
Microsoft.Extensions.Configuration.Binder
Functionality to bind an object to data in configuration providers for Microsoft.Extensions.Configuration.
 32
Microsoft.Extensions.Configuration.FileExtensions
Extension methods for configuring file-based configuration providers for Microsoft.Extensions.Configuration.
 32
Microsoft.Extensions.Configuration.Json
JSON configuration provider implementation for Microsoft.Extensions.Configuration.
 31
Microsoft.Extensions.Configuration.CommandLine
Command line configuration provider implementation for Microsoft.Extensions.Configuration.
 31
Microsoft.Extensions.Configuration.Binder
Functionality to bind an object to data in configuration providers for Microsoft.Extensions.Configuration.
 30
Microsoft.Extensions.Configuration.FileExtensions
Extension methods for configuring file-based configuration providers for Microsoft.Extensions.Configuration.
 30
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
 30

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.NET Framework 4.6.2

.NET 8.0

.NET 9.0

.NET Standard 2.0

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