Microsoft.Extensions.Options 9.0.0-preview.6.24327.7
About
Microsoft.Extensions.Options
provides a strongly typed way of specifying and accessing settings using dependency injection and acts as a bridge between configuration, DI, and higher level libraries. This library is the glue for how an app developer uses DI to configure the behavior of a library like HttpClient Factory. This also enables user to get a strongly-typed view of their configuration.
Within this package, you'll find an options validation source generator that generates exceptionally efficient and optimized code for validating options.
Key Features
- Offer the IValidateOptions interface for the validation of options, along with several generic ValidateOptions classes that implement this interface.
- OptionsBuilder to configure options.
- Provide extension methods for service collections and options builder to register options and validate options.
- Supply a set of generic ConfigureNamedOptions classes that implement the IConfigureNamedOptions interface for configuring named options.
- Provide a source generator that generates validation code for options.
- Options caching, managing and monitoring.
How to Use
Options validation example
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddControllersWithViews();
// Load the configuration and validate it
builder.Services.AddOptions<MyConfigOptions>()
.Bind(builder.Configuration.GetSection(MyConfigOptions.MyConfig))
.ValidateDataAnnotations();
var app = builder.Build();
// Declare the option class to validate
public class MyConfigOptions
{
public const string MyConfig = "MyConfig";
[RegularExpression(@"^[a-zA-Z''-'\s]{1,40}$")]
public string Key1 { get; set; }
[Range(0, 1000,
ErrorMessage = "Value for {0} must be between {1} and {2}.")]
public int Key2 { get; set; }
public int Key3 { get; set; }
}
Using IValidateOptions to validate options
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Options;
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddControllersWithViews();
// Configuration to validate
builder.Services.Configure<MyConfigOptions>(builder.Configuration.GetSection(
MyConfigOptions.MyConfig));
// OPtions validation through the DI container
builder.Services.AddSingleton<IValidateOptions
<MyConfigOptions>, MyConfigValidation>();
var app = builder.Build();
public class MyConfigValidation : IValidateOptions<MyConfigOptions>
{
public MyConfigOptions _config { get; private set; }
public MyConfigValidation(IConfiguration config)
{
_config = config.GetSection(MyConfigOptions.MyConfig)
.Get<MyConfigOptions>();
}
public ValidateOptionsResult Validate(string name, MyConfigOptions options)
{
string? vor = null;
var rx = new Regex(@"^[a-zA-Z''-'\s]{1,40}$");
var match = rx.Match(options.Key1!);
if (string.IsNullOrEmpty(match.Value))
{
vor = $"{options.Key1} doesn't match RegEx \n";
}
if ( options.Key2 < 0 || options.Key2 > 1000)
{
vor = $"{options.Key2} doesn't match Range 0 - 1000 \n";
}
if (_config.Key2 != default)
{
if(_config.Key3 <= _config.Key2)
{
vor += "Key3 must be > than Key2.";
}
}
if (vor != null)
{
return ValidateOptionsResult.Fail(vor);
}
return ValidateOptionsResult.Success;
}
}
Options Validation Source Generator Example
using System;
using System.ComponentModel.DataAnnotations;
using Microsoft.Extensions.Options;
public class MyConfigOptions
{
[RegularExpression(@"^[a-zA-Z''-'\s]{1,40}$")]
public string Key1 { get; set; }
[Range(0, 1000,
ErrorMessage = "Value for {0} must be between {1} and {2}.")]
public int Key2 { get; set; }
public int Key3 { get; set; }
}
[OptionsValidator]
public partial class MyConfigValidation : IValidateOptions<MyConfigOptions>
{
// Source generator will automatically provide the implementation of IValidateOptions
// Then you can add the validation to the DI Container using the following code:
//
// builder.Services.AddSingleton<IValidateOptions
// <MyConfigOptions>, MyConfigValidation>();
// builder.Services.AddOptions<MyConfigOptions>()
// .Bind(builder.Configuration.GetSection(MyConfigOptions.MyConfig))
// .ValidateDataAnnotations();
}
Main Types
The main types provided by this library are:
IOptions
,IOptionsFactory
, andIOptionsMonitor
IValidateOptions
andValidateOptions
OptionsBuilder
,OptionsFactory
,OptionsMonitor
, andOptionsManager
OptionsServiceCollectionExtensions
OptionsValidatorAttribute
Additional Documentation
Related Packages
Microsoft.Extensions.Logging Microsoft.Extensions.Configuration
Feedback & Contributing
Microsoft.Extensions.Options is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.
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.NET Framework 4.6.2
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0-preview.6.24327.7)
- System.ValueTuple (>= 4.5.0)
- Microsoft.Extensions.Primitives (>= 9.0.0-preview.6.24327.7)
.NET Standard 2.1
- System.ComponentModel.Annotations (>= 5.0.0)
- Microsoft.Extensions.Primitives (>= 9.0.0-preview.6.24327.7)
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0-preview.6.24327.7)
.NET Standard 2.0
- Microsoft.Extensions.Primitives (>= 9.0.0-preview.6.24327.7)
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0-preview.6.24327.7)
- System.ComponentModel.Annotations (>= 5.0.0)
.NET 9.0
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0-preview.6.24327.7)
- Microsoft.Extensions.Primitives (>= 9.0.0-preview.6.24327.7)
.NET 8.0
- Microsoft.Extensions.Primitives (>= 9.0.0-preview.6.24327.7)
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0-preview.6.24327.7)
Version | Downloads | Last updated |
---|---|---|
9.0.0-preview.7.24405.7 | 7 | 08/15/2024 |
9.0.0-preview.6.24327.7 | 4 | 07/10/2024 |
9.0.0-preview.5.24306.7 | 4 | 06/21/2024 |
9.0.0-preview.4.24266.19 | 4 | 05/22/2024 |
9.0.0-preview.3.24172.9 | 8 | 04/20/2024 |
9.0.0-preview.2.24128.5 | 10 | 03/14/2024 |
9.0.0-preview.1.24080.9 | 8 | 02/20/2024 |
8.0.2 | 5 | 02/18/2024 |
8.0.1 | 8 | 01/29/2024 |
8.0.0 | 9 | 11/20/2023 |
8.0.0-rc.2.23479.6 | 16 | 10/10/2023 |
8.0.0-rc.1.23419.4 | 18 | 09/14/2023 |
8.0.0-preview.7.23375.6 | 22 | 08/17/2023 |
8.0.0-preview.6.23329.7 | 11 | 07/15/2023 |
8.0.0-preview.5.23280.8 | 16 | 06/14/2023 |
8.0.0-preview.4.23259.5 | 14 | 05/17/2023 |
8.0.0-preview.3.23174.8 | 14 | 06/22/2023 |
8.0.0-preview.2.23128.3 | 21 | 04/04/2023 |
8.0.0-preview.1.23110.8 | 12 | 04/04/2023 |
7.0.1 | 20 | 04/04/2023 |
7.0.0 | 4,243 | 11/15/2022 |
7.0.0-rc.2.22472.3 | 23 | 10/12/2022 |
7.0.0-rc.1.22426.10 | 14 | 09/25/2022 |
7.0.0-preview.7.22375.6 | 12 | 09/21/2022 |
7.0.0-preview.6.22324.4 | 62 | 09/23/2022 |
7.0.0-preview.5.22301.12 | 20 | 09/26/2022 |
7.0.0-preview.4.22229.4 | 18 | 09/23/2022 |
7.0.0-preview.3.22175.4 | 21 | 07/01/2022 |
7.0.0-preview.2.22152.2 | 12 | 09/25/2022 |
7.0.0-preview.1.22076.8 | 30 | 06/29/2022 |
6.0.2-mauipre.1.22102.15 | 11 | 09/24/2022 |
6.0.2-mauipre.1.22054.8 | 10 | 09/24/2022 |
6.0.0 | 25,651 | 06/27/2022 |
6.0.0-rc.2.21480.5 | 13 | 10/24/2023 |
6.0.0-rc.1.21451.13 | 32 | 10/20/2022 |
6.0.0-preview.7.21377.19 | 24 | 09/22/2022 |
6.0.0-preview.6.21352.12 | 24 | 09/22/2022 |
6.0.0-preview.5.21301.5 | 16 | 09/21/2022 |
6.0.0-preview.4.21253.7 | 29 | 09/26/2022 |
6.0.0-preview.3.21201.4 | 17 | 09/23/2022 |
6.0.0-preview.2.21154.6 | 35 | 09/25/2022 |
6.0.0-preview.1.21102.12 | 15 | 09/21/2022 |
5.0.0 | 25,070 | 06/27/2022 |
5.0.0-rc.2.20475.5 | 19 | 01/07/2023 |
5.0.0-rc.1.20451.14 | 43 | 09/22/2022 |
5.0.0-preview.8.20407.11 | 43 | 09/21/2022 |
5.0.0-preview.7.20364.11 | 31 | 09/24/2022 |
5.0.0-preview.6.20305.6 | 23 | 09/21/2022 |
5.0.0-preview.5.20278.1 | 14 | 09/26/2022 |
5.0.0-preview.4.20251.6 | 39 | 09/22/2022 |
5.0.0-preview.3.20215.2 | 14 | 09/05/2023 |
5.0.0-preview.2.20160.3 | 46 | 12/03/2022 |
5.0.0-preview.1.20120.4 | 17 | 09/22/2022 |
3.1.32 | 18 | 01/14/2023 |
3.1.31 | 44 | 12/02/2022 |
3.1.30 | 30 | 12/10/2022 |
3.1.29 | 28 | 09/22/2022 |
3.1.28 | 59 | 09/23/2022 |
3.1.27 | 16 | 09/21/2022 |
3.1.26 | 53 | 09/23/2022 |
3.1.25 | 19 | 12/27/2022 |
3.1.24 | 19 | 09/22/2022 |
3.1.23 | 13 | 06/27/2022 |
3.1.22 | 19 | 09/24/2022 |
3.1.21 | 8 | 12/20/2022 |
3.1.20 | 43 | 01/10/2023 |
3.1.19 | 41 | 07/19/2022 |
3.1.18 | 12 | 09/23/2022 |
3.1.17 | 22 | 09/26/2022 |
3.1.16 | 53 | 09/21/2022 |
3.1.15 | 20 | 09/26/2022 |
3.1.14 | 30 | 09/21/2022 |
3.1.13 | 32 | 08/11/2022 |
3.1.12 | 11 | 09/25/2022 |
3.1.11 | 24 | 06/27/2022 |
3.1.10 | 13 | 09/22/2022 |
3.1.9 | 41 | 09/24/2022 |
3.1.8 | 46 | 09/23/2022 |
3.1.7 | 28 | 09/26/2022 |
3.1.6 | 69 | 06/29/2022 |
3.1.5 | 9,754 | 06/27/2022 |
3.1.4 | 9,371 | 09/22/2022 |
3.1.3 | 9,775 | 06/27/2022 |
3.1.2 | 24 | 07/01/2022 |
3.1.1 | 15 | 09/24/2022 |
3.1.0 | 274 | 09/23/2022 |
3.1.0-preview3.19553.2 | 22 | 09/23/2022 |
3.1.0-preview2.19525.4 | 38 | 09/22/2022 |
3.1.0-preview1.19506.1 | 67 | 09/22/2022 |
3.0.3 | 36 | 09/27/2022 |
3.0.2 | 11 | 09/23/2022 |
3.0.1 | 10 | 09/23/2022 |
3.0.0 | 9,674 | 06/27/2022 |
3.0.0-rc1.19456.10 | 39 | 09/27/2022 |
3.0.0-preview9.19423.4 | 15 | 09/23/2022 |
3.0.0-preview8.19405.4 | 32 | 09/21/2022 |
3.0.0-preview7.19362.4 | 59 | 09/24/2022 |
3.0.0-preview6.19304.6 | 57 | 09/21/2022 |
3.0.0-preview5.19227.9 | 16 | 09/05/2023 |
3.0.0-preview4.19216.2 | 14 | 12/11/2022 |
3.0.0-preview3.19153.1 | 51 | 09/22/2022 |
3.0.0-preview.19074.2 | 21 | 07/15/2022 |
3.0.0-preview.18572.1 | 11 | 08/11/2022 |
2.2.0 | 25,874 | 06/27/2022 |
2.2.0-preview3-35497 | 11 | 08/11/2022 |
2.2.0-preview2-35157 | 14 | 09/21/2022 |
2.2.0-preview1-35029 | 14 | 09/24/2022 |
2.1.1 | 22,567 | 06/27/2022 |
2.1.0 | 46 | 06/27/2022 |
2.1.0-rc1-final | 40 | 08/11/2022 |
2.1.0-preview2-final | 23 | 12/22/2022 |
2.1.0-preview1-final | 20 | 09/23/2022 |
2.0.2 | 18 | 06/30/2022 |
2.0.1 | 15 | 12/22/2022 |
2.0.0 | 25,067 | 06/27/2022 |
2.0.0-preview2-final | 21 | 09/22/2022 |
2.0.0-preview1-final | 24 | 09/24/2022 |
1.1.2 | 26 | 09/22/2022 |
1.1.1 | 12 | 09/21/2022 |
1.1.0 | 3,716 | 06/27/2022 |
1.1.0-preview1-final | 15 | 08/11/2022 |
1.0.2 | 13 | 09/22/2022 |
1.0.1 | 16 | 09/23/2022 |
1.0.0 | 59 | 06/27/2022 |
1.0.0-rc2-final | 12 | 09/21/2022 |