aspnet/Microsoft.Extensions.Configuration.Binderv9.0.2
✓ Verified.NET FW4.6.2.NET 10.0.NET 11.0.NET Std2.0
Provides the functionality to bind an object to data in configuration providers for Microsoft.Extensions.Configuration. This package enables you to represent the configuration data as strongly-typed classes defined in the application code. To bind a configuration, use the Microsoft.Extensions.Configuration.ConfigurationBinder.Get extension method on the IConfiguration object. To use this package, you also need to install a package for the configuration provider, for example, Microsoft.Extensions.Configuration.Json for the JSON provider.
Get Started
$ dotnet add package Microsoft.Extensions.Configuration.BinderReadme
About
<!-- A description of the package and where one can find more documentation -->Provides the functionality to bind an object to data in configuration providers for Microsoft.Extensions.Configuration. This package enables you to represent the configuration data as strongly-typed classes defined in the application code. To bind a configuration, use the Microsoft.Extensions.Configuration.ConfigurationBinder.Get extension method on the IConfiguration object. To use this package, you also need to install a package for the configuration provider, for example, Microsoft.Extensions.Configuration.Json for the JSON provider.
The types contained in this assembly use Reflection at runtime which is not friendly with linking or AOT. To better support linking and AOT as well as provide more efficient strongly-typed binding methods - this package also provides a source generator. This generator is enabled by default when a project sets PublishAot but can also be enabled using <EnableConfigurationBindingGenerator>true</EnableConfigurationBindingGenerator>.
Key Features
<!-- The key features of this package -->- Configuring existing type instances from a configuration section (Bind)
- Constructing new configured type instances from a configuration section (Get & GetValue)
- Generating source to bind objects from a configuration section without a runtime reflection dependency.
How to Use
<!-- A compelling example on how to use this package with code, as well as any specific guidelines for when to use the package -->The following example shows how to bind a JSON configuration section to .NET objects.
using System;
using Microsoft.Extensions.Configuration;
class Settings
{
public string Server { get; set; }
public string Database { get; set; }
public Endpoint[] Endpoints { get; set; }
}
class Endpoint
{
public string IPAddress { get; set; }
public int Port { get; set; }
}
class Program
{
static void Main()
{
// Build a configuration object from JSON file
IConfiguration config = new ConfigurationBuilder()
.AddJsonFile("appsettings.json")
.Build();
// Bind a configuration section to an instance of Settings class
Settings settings = config.GetSection("Settings").Get<Settings>();
// Read simple values
Console.WriteLine($"Server: {settings.Server}");
Console.WriteLine($"Database: {settings.Database}");
// Read nested objects
Console.WriteLine("Endpoints: ");
foreach (Endpoint endpoint in settings.Endpoints)
{
Console.WriteLine($"{endpoint.IPAddress}:{endpoint.Port}");
}
}
}
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