Microsoft.Extensions.Configuration.EnvironmentVariables 9.0.0-preview.2.24128.5

About

Environment variables configuration provider implementation for Microsoft.Extensions.Configuration. This package enables you to read configuration parameters from environment variables. You can use EnvironmentVariablesExtensions.AddEnvironmentVariables extension method on IConfigurationBuilder to add the environment variables configuration provider to the configuration builder.

How to Use

The following example shows how to read application configuration from environment variables.

using System;
using Microsoft.Extensions.Configuration;

class Program
{
    static void Main()
    {
        // Build a configuration object from environment variables
        IConfiguration config = new ConfigurationBuilder()
            .AddEnvironmentVariables()
            .Build();
        
        // Read configuration values
        Console.WriteLine($"Server: {config["Server"]}");
        Console.WriteLine($"Database: {config["Database"]}");
    }
}

Additional Documentation

Feedback & Contributing

Microsoft.Extensions.Configuration.EnvironmentVariables 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.EnvironmentVariables.

Packages Downloads
Microsoft.AspNetCore
Microsoft.AspNetCore
39
Microsoft.AspNetCore
Microsoft.AspNetCore
40
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
39
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
40
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
41
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
45
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
47
Microsoft.AspNetCore.Hosting
ASP.NET Core hosting infrastructure and startup logic for web applications.
50
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
72
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/Hosting/tree/0724e6cde1149ee1a19bfec9c13a2c9327b71213
47
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
42
Microsoft.Extensions.Hosting
Hosting and startup infrastructures for applications.
221
Microsoft.Extensions.Hosting
.NET Core hosting and startup infrastructures for applications.
41
Microsoft.Extensions.Hosting
.NET Core hosting and startup infrastructures for applications.
5,357
Microsoft.Extensions.Hosting
.NET Core hosting and startup infrastructures for applications.
9,041
Microsoft.Extensions.Logging.AzureAppServices
Logger implementation to support Azure App Services 'Diagnostics logs' and 'Log stream' features. This package was built from the source code at https://github.com/dotnet/aspnetcore/tree/50b7e9c661453874aa7a54a3985d5120564bb2e5
39
SkyAPM.Utilities.Configuration
SkyAPM configuration extensions.
41
SkyAPM.Utilities.Configuration
SkyAPM configuration extensions.
128

https://go.microsoft.com/fwlink/?LinkID=799421

.NET Framework 4.6.2

.NET 8.0

.NET 9.0

.NET Standard 2.0

Version Downloads Last updated
10.0.0 4 11/13/2025
10.0.0-rc.2.25502.107 6 10/21/2025
10.0.0-rc.1.25451.107 12 09/13/2025
10.0.0-preview.7.25380.108 12 08/14/2025
10.0.0-preview.6.25358.103 10 07/18/2025
10.0.0-preview.5.25277.114 12 06/07/2025
10.0.0-preview.4.25258.110 17 05/17/2025
10.0.0-preview.3.25171.5 16 04/19/2025
10.0.0-preview.2.25163.2 22 03/22/2025
10.0.0-preview.1.25080.5 20 03/02/2025
9.0.11 6 11/13/2025
9.0.10 7 10/16/2025
9.0.9 7 09/13/2025
9.0.8 10 08/08/2025
9.0.7 12 07/12/2025
9.0.6 13 06/13/2025
9.0.5 17 05/18/2025
9.0.4 20 04/19/2025
9.0.3 22 03/17/2025
9.0.2 20 02/22/2025
9.0.1 20 02/02/2025
9.0.0 28 11/14/2024
9.0.0-rc.2.24473.5 19 11/25/2024
9.0.0-rc.1.24431.7 20 11/26/2024
9.0.0-preview.7.24405.7 20 11/14/2024
9.0.0-preview.6.24327.7 19 11/26/2024
9.0.0-preview.5.24306.7 19 01/07/2025
9.0.0-preview.4.24266.19 21 11/14/2024
9.0.0-preview.3.24172.9 29 05/16/2024
9.0.0-preview.2.24128.5 26 05/05/2024
9.0.0-preview.1.24080.9 29 05/02/2024
8.0.0 253 02/04/2024
8.0.0-rc.2.23479.6 28 05/14/2024
8.0.0-rc.1.23419.4 17 11/23/2024
8.0.0-preview.7.23375.6 22 12/08/2024
8.0.0-preview.6.23329.7 38 08/08/2023
8.0.0-preview.5.23280.8 23 11/12/2024
8.0.0-preview.4.23259.5 21 11/27/2024
8.0.0-preview.3.23174.8 18 11/26/2024
8.0.0-preview.2.23128.3 28 05/06/2024
8.0.0-preview.1.23110.8 22 05/19/2024
7.0.0 88 02/02/2023
7.0.0-rc.2.22472.3 18 11/27/2024
7.0.0-rc.1.22426.10 21 11/27/2024
7.0.0-preview.7.22375.6 22 11/27/2024
7.0.0-preview.6.22324.4 22 11/28/2024
7.0.0-preview.5.22301.12 17 11/27/2024
7.0.0-preview.4.22229.4 25 11/27/2024
7.0.0-preview.3.22175.4 25 05/06/2024
7.0.0-preview.1.22076.8 25 05/02/2024
6.0.2 24 11/14/2024
6.0.1 28 09/07/2022
6.0.0 38 05/09/2022
6.0.0-rc.2.21480.5 21 11/26/2024
6.0.0-rc.1.21451.13 20 11/27/2024
6.0.0-preview.7.21377.19 23 05/08/2024
6.0.0-preview.6.21352.12 16 01/07/2025
6.0.0-preview.5.21301.5 32 05/17/2024
6.0.0-preview.2.21154.6 22 05/02/2024
6.0.0-preview.1.21102.12 26 11/29/2024
5.0.0-rc.2.20475.5 30 05/25/2024
5.0.0-rc.1.20451.14 28 05/01/2024
5.0.0-preview.7.20364.11 21 12/02/2024
5.0.0-preview.5.20278.1 26 11/26/2024
5.0.0-preview.4.20251.6 20 11/26/2024
5.0.0-preview.3.20215.2 28 05/09/2024
5.0.0-preview.2.20160.3 27 05/10/2024
5.0.0-preview.1.20120.4 28 05/03/2024
3.1.32 9,164 05/11/2023
3.1.31 31 05/24/2024
3.1.30 5,430 11/03/2022
3.1.29 26 05/07/2024
3.1.28 32 05/03/2024
3.1.27 26 05/17/2024
3.1.26 25 11/30/2024
3.1.25 25 11/12/2024
3.1.18 26 05/10/2022
3.1.15 23 11/27/2024
3.1.14 26 05/09/2022
3.1.10 29 05/02/2024
3.1.7 24 12/05/2024
3.1.4 23 11/27/2024
3.1.0-preview3.19553.2 25 05/02/2024
3.1.0-preview1.19506.1 23 11/11/2024
3.0.0-rc1.19456.10 19 11/12/2024
3.0.0-preview7.19362.4 24 12/07/2024
3.0.0-preview6.19304.6 30 05/10/2022
3.0.0-preview5.19227.9 20 12/02/2024
3.0.0-preview3.19153.1 27 12/06/2024
3.0.0-preview.18572.1 19 11/27/2024
2.2.0-preview3-35497 22 12/02/2024
2.2.0-preview2-35157 21 11/27/2024
2.2.0-preview1-35029 28 05/05/2024
2.1.1 28 05/17/2024
2.1.0-rc1-final 23 11/14/2024
2.1.0-preview2-final 33 05/22/2024
2.1.0-preview1-final 25 11/27/2024
2.0.0-preview1-final 26 05/17/2024
1.1.1 26 05/27/2024
1.1.0-preview1-final 26 05/15/2024
1.0.2 20 12/03/2024
1.0.0 30 05/26/2024
1.0.0-rc2-final 22 11/28/2024
1.0.0-rc1-final 21 11/27/2024