In ASP.Net Core it's possible to inject config values into a class using IOptions<T>.
So if I have the following appsettings.json config:
{
"CustomSection": {
"Foo": "Bar"
},
"RootUrl": "http://localhost:12345/"
}
I can inject IOptions<CustomSection> into my constructor (assuming I've defined a CustomSection class) and read the Foo property.
How can I inject the RootUrl setting into my constructor or is this not supported?
Create a class as below
public class AppSettings {
public string RootUrl{ get; set; }
}
Inject it into your startup.cs as below.
public void ConfigureServices(IServiceCollection services)
{
services.Configure<AppSettings>(Configuration.GetSection("AppSettings"));
}
And use it in your controller as below.
public CustomerController(IOptions<AppSettings> appSettings)
{
[variable] = appSettings.Value;
}
Let me know if this works for you.
From the docs Using options and configuration objects that is not possible:
The options pattern enables using custom options classes to represent a group of related settings. A class needs to have a public read-write property for each setting and a constructor that does not take any parameters (e.g. a default constructor) in order to be used as an options class.
That means you need to generate a class to read it's configuration value(s). But in your sample RootUrlcannot be constructed via a class.
RootUrl