Microsoft.Extensions.Options 9.0.0
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.
Showing the top 20 packages that depend on Microsoft.Extensions.Options.
Packages | Downloads |
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Microsoft.AspNetCore.Authentication.Abstractions
ASP.NET Core common types used by the various authentication components.
|
42 |
Microsoft.AspNetCore.Authorization
ASP.NET Core authorization classes.
Commonly used types:
Microsoft.AspNetCore.Authorization.AllowAnonymousAttribute
Microsoft.AspNetCore.Authorization.AuthorizeAttribute
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35 |
Microsoft.AspNetCore.Diagnostics
ASP.NET Core middleware for exception handling, exception display pages, and diagnostics information. Includes developer exception page middleware, exception handler middleware, runtime info middleware, status code page middleware, and welcome page middleware
This package was built from the source code at https://github.com/aspnet/Diagnostics/tree/c802d5ef5fba1ba8dfbcb8c3741af2ba15e9d1aa
|
19 |
Microsoft.AspNetCore.Http
ASP.NET Core default HTTP feature implementations.
|
45 |
Microsoft.AspNetCore.Http
ASP.NET Core default HTTP feature implementations.
This package was built from the source code at https://github.com/aspnet/AspNetCore/tree/522705f9a27b99ca4ad261f2e89fe51a77b2338e
|
24 |
Microsoft.AspNetCore.Http
ASP.NET Core default HTTP feature implementations.
This package was built from the source code at https://github.com/aspnet/HttpAbstractions/tree/91db78cf926939821bc96e8e60616cf5dde0b489
|
31 |
Microsoft.AspNetCore.Routing
ASP.NET Core middleware for routing requests to application logic and for generating links.
Commonly used types:
Microsoft.AspNetCore.Routing.Route
Microsoft.AspNetCore.Routing.RouteCollection
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27 |
Microsoft.AspNetCore.Routing
ASP.NET Core middleware for routing requests to application logic and for generating links.
Commonly used types:
Microsoft.AspNetCore.Routing.Route
Microsoft.AspNetCore.Routing.RouteCollection
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33 |
Microsoft.AspNetCore.Routing
ASP.NET Core middleware for routing requests to application logic and for generating links.
Commonly used types:
Microsoft.AspNetCore.Routing.Route
Microsoft.AspNetCore.Routing.RouteCollection
|
45 |
Microsoft.Extensions.Caching.Memory
In-memory cache implementation of Microsoft.Extensions.Caching.Memory.IMemoryCache.
This package was built from the source code at https://github.com/aspnet/Extensions/tree/9bc79b2f25a3724376d7af19617c33749a30ea3a
|
24 |
Microsoft.Extensions.Localization
Application localization services and default implementation based on ResourceManager to load localized assembly resources.
This package was built from the source code at https://github.com/aspnet/Localization/tree/de1579bdda645ba8631403af8720929b76939853
|
21 |
Microsoft.Extensions.Logging
Logging infrastructure default implementation for Microsoft.Extensions.Logging.
|
17 |
Microsoft.Extensions.Logging
Logging infrastructure default implementation for Microsoft.Extensions.Logging.
|
29 |
Microsoft.Extensions.Logging
Logging infrastructure default implementation for Microsoft.Extensions.Logging.
|
34 |
Microsoft.Extensions.Logging
Logging infrastructure default implementation for Microsoft.Extensions.Logging.
This package was built from the source code at https://github.com/aspnet/Extensions/tree/9bc79b2f25a3724376d7af19617c33749a30ea3a
|
65 |
Microsoft.Extensions.Logging.EventLog
Windows Event Log logger provider implementation for Microsoft.Extensions.Logging.
|
19 |
Microsoft.Extensions.Options.ConfigurationExtensions
Provides additional configuration specific functionality related to Options.
|
28 |
Microsoft.Extensions.Options.ConfigurationExtensions
Provides additional configuration specific functionality related to Options.
|
36 |
Microsoft.Extensions.Options.ConfigurationExtensions
Provides additional configuration specific functionality related to Options.
This package was built from the source code at https://github.com/aspnet/Extensions/tree/9bc79b2f25a3724376d7af19617c33749a30ea3a
|
22 |
Microsoft.Extensions.WebEncoders
Contains registration and configuration APIs to add the core framework encoders to a dependency injection container.
This package was built from the source code at https://github.com/aspnet/HtmlAbstractions/tree/6c5ca90d81f9013a8652da4c1752bd0b4d18e908
|
22 |
.NET Framework 4.6.2
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0)
- System.ValueTuple (>= 4.5.0)
- Microsoft.Extensions.Primitives (>= 9.0.0)
.NET Standard 2.1
- System.ComponentModel.Annotations (>= 5.0.0)
- Microsoft.Extensions.Primitives (>= 9.0.0)
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0)
.NET Standard 2.0
- Microsoft.Extensions.Primitives (>= 9.0.0)
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0)
- System.ComponentModel.Annotations (>= 5.0.0)
.NET 9.0
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0)
- Microsoft.Extensions.Primitives (>= 9.0.0)
.NET 8.0
- Microsoft.Extensions.Primitives (>= 9.0.0)
- Microsoft.Extensions.DependencyInjection.Abstractions (>= 9.0.0)
Version | Downloads | Last updated |
---|---|---|
9.0.0 | 3 | 03.12.2024 |
9.0.0-rc.2.24473.5 | 6 | 28.10.2024 |
9.0.0-rc.1.24431.7 | 10 | 22.09.2024 |
9.0.0-preview.7.24405.7 | 7 | 22.09.2024 |
9.0.0-preview.6.24327.7 | 8 | 22.09.2024 |
9.0.0-preview.5.24306.7 | 12 | 04.07.2024 |
9.0.0-preview.4.24266.19 | 0 | 21.05.2024 |
9.0.0-preview.3.24172.9 | 7 | 23.10.2024 |
9.0.0-preview.2.24128.5 | 0 | 12.03.2024 |
9.0.0-preview.1.24080.9 | 7 | 22.09.2024 |
8.0.2 | 8 | 22.04.2024 |
8.0.1 | 28 | 21.02.2024 |
8.0.0 | 18 | 31.01.2024 |
8.0.0-rc.2.23479.6 | 7 | 23.10.2024 |
8.0.0-rc.1.23419.4 | 9 | 22.09.2024 |
8.0.0-preview.7.23375.6 | 7 | 23.10.2024 |
8.0.0-preview.6.23329.7 | 0 | 11.07.2023 |
8.0.0-preview.5.23280.8 | 1 | 16.12.2024 |
8.0.0-preview.4.23259.5 | 0 | 16.05.2023 |
8.0.0-preview.3.23174.8 | 0 | 11.04.2023 |
8.0.0-preview.2.23128.3 | 8 | 22.09.2024 |
8.0.0-preview.1.23110.8 | 8 | 22.09.2024 |
7.0.1 | 20 | 04.03.2024 |
7.0.0 | 14 | 28.02.2024 |
7.0.0-rc.2.22472.3 | 7 | 22.09.2024 |
7.0.0-rc.1.22426.10 | 7 | 23.10.2024 |
7.0.0-preview.7.22375.6 | 8 | 23.10.2024 |
7.0.0-preview.6.22324.4 | 6 | 22.09.2024 |
7.0.0-preview.5.22301.12 | 8 | 22.09.2024 |
7.0.0-preview.4.22229.4 | 6 | 22.09.2024 |
7.0.0-preview.3.22175.4 | 0 | 13.04.2022 |
7.0.0-preview.2.22152.2 | 8 | 04.07.2024 |
7.0.0-preview.1.22076.8 | 0 | 17.02.2022 |
6.0.1 | 0 | 12.11.2024 |
6.0.0 | 14 | 17.03.2024 |
6.0.0-rc.2.21480.5 | 0 | 12.10.2021 |
6.0.0-rc.1.21451.13 | 0 | 14.09.2021 |
6.0.0-preview.7.21377.19 | 8 | 23.10.2024 |
6.0.0-preview.6.21352.12 | 7 | 23.10.2024 |
6.0.0-preview.5.21301.5 | 8 | 23.10.2024 |
6.0.0-preview.4.21253.7 | 0 | 24.05.2021 |
6.0.0-preview.3.21201.4 | 8 | 23.10.2024 |
6.0.0-preview.2.21154.6 | 8 | 22.09.2024 |
6.0.0-preview.1.21102.12 | 6 | 22.09.2024 |
5.0.0 | 12 | 17.03.2024 |
5.0.0-rc.2.20475.5 | 0 | 13.10.2020 |
5.0.0-rc.1.20451.14 | 7 | 23.10.2024 |
5.0.0-preview.8.20407.11 | 0 | 25.08.2020 |
5.0.0-preview.7.20364.11 | 0 | 21.07.2020 |
5.0.0-preview.6.20305.6 | 7 | 27.08.2024 |
5.0.0-preview.5.20278.1 | 9 | 04.07.2024 |
5.0.0-preview.4.20251.6 | 9 | 22.09.2024 |
5.0.0-preview.3.20215.2 | 9 | 22.09.2024 |
5.0.0-preview.2.20160.3 | 8 | 22.09.2024 |
5.0.0-preview.1.20120.4 | 0 | 16.03.2020 |
3.1.32 | 0 | 13.12.2022 |
3.1.31 | 8 | 22.09.2024 |
3.1.30 | 7 | 22.09.2024 |
3.1.29 | 7 | 23.10.2024 |
3.1.28 | 0 | 09.08.2022 |
3.1.27 | 8 | 22.09.2024 |
3.1.26 | 0 | 14.06.2022 |
3.1.25 | 0 | 10.05.2022 |
3.1.24 | 7 | 23.10.2024 |
3.1.23 | 6 | 23.10.2024 |
3.1.22 | 6 | 23.10.2024 |
3.1.21 | 9 | 16.09.2024 |
3.1.20 | 0 | 11.10.2021 |
3.1.19 | 11 | 13.03.2024 |
3.1.18 | 8 | 04.07.2024 |
3.1.17 | 7 | 22.09.2024 |
3.1.16 | 0 | 08.06.2021 |
3.1.15 | 8 | 04.07.2024 |
3.1.14 | 0 | 06.04.2021 |
3.1.13 | 7 | 22.09.2024 |
3.1.12 | 6 | 23.10.2024 |
3.1.11 | 12 | 04.07.2024 |
3.1.10 | 7 | 23.10.2024 |
3.1.9 | 7 | 23.10.2024 |
3.1.8 | 12 | 01.02.2024 |
3.1.7 | 8 | 22.09.2024 |
3.1.6 | 0 | 14.07.2020 |
3.1.5 | 7 | 27.08.2024 |
3.1.4 | 6 | 22.09.2024 |
3.1.3 | 7 | 22.09.2024 |
3.1.2 | 8 | 21.08.2024 |
3.1.1 | 7 | 22.09.2024 |
3.1.0 | 6 | 22.09.2024 |
3.1.0-preview3.19553.2 | 8 | 22.09.2024 |
3.1.0-preview2.19525.4 | 0 | 01.11.2019 |
3.1.0-preview1.19506.1 | 0 | 15.10.2019 |
3.0.3 | 0 | 18.02.2020 |
3.0.2 | 7 | 23.10.2024 |
3.0.1 | 9 | 09.04.2024 |
3.0.0 | 25 | 15.02.2024 |
3.0.0-rc1.19456.10 | 10 | 23.10.2024 |
3.0.0-preview9.19423.4 | 5 | 22.10.2024 |
3.0.0-preview8.19405.4 | 8 | 04.07.2024 |
3.0.0-preview7.19362.4 | 7 | 04.07.2024 |
3.0.0-preview6.19304.6 | 8 | 04.07.2024 |
3.0.0-preview5.19227.9 | 0 | 06.05.2019 |
3.0.0-preview4.19216.2 | 0 | 18.04.2019 |
3.0.0-preview3.19153.1 | 0 | 06.03.2019 |
3.0.0-preview.19074.2 | 6 | 22.10.2024 |
3.0.0-preview.18572.1 | 0 | 04.12.2018 |
2.2.0 | 46 | 31.01.2024 |
2.2.0-preview3-35497 | 7 | 23.10.2024 |
2.2.0-preview2-35157 | 0 | 12.09.2018 |
2.2.0-preview1-35029 | 0 | 22.08.2018 |
2.1.1 | 9 | 23.05.2024 |
2.1.0 | 12 | 05.09.2024 |
2.1.0-rc1-final | 7 | 18.07.2024 |
2.1.0-preview2-final | 1 | 20.12.2024 |
2.1.0-preview1-final | 9 | 22.09.2024 |
2.0.2 | 0 | 07.05.2018 |
2.0.1 | 8 | 04.07.2024 |
2.0.0 | 35 | 13.02.2024 |
2.0.0-preview2-final | 0 | 28.06.2017 |
2.0.0-preview1-final | 7 | 26.02.2024 |
1.1.2 | 0 | 09.05.2017 |
1.1.1 | 7 | 04.07.2024 |
1.1.0 | 0 | 16.11.2016 |
1.1.0-preview1-final | 8 | 23.10.2024 |
1.0.2 | 7 | 04.07.2024 |
1.0.1 | 9 | 04.07.2024 |
1.0.0 | 28 | 21.03.2024 |
1.0.0-rc2-final | 6 | 22.09.2024 |