Appsettings and middleware Core 2.1 - middleware

Question

I have made a custom middleware and now I want to access the appsettings that are in another project in my solution. Should I inject the IConfiguration object into the middleware constructor, and add the using statement of Microsoft.Extensions.Configuration? Or is there a better way to do this?
I am working with ASP.net Web page with Core 2.1.
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using System;
using System.Threading.Tasks;
public class MyMiddleware
{
public IConfiguration _configuration;
public MyMiddleware(RequestDelegate next, IConfiguration config)
{
_next = next;
_ configuration = config;
}

Answer 1

If you don't need all your configuration passed to your middleware but just a section you can use
IOptions<T>
Create MyConfig.cs Class file:
public class MyConfig
{
public string MyConfig1 {get; set;}
public string MyConfig2 {get; set;}
}
In ConfigureServices method in Startup.cs
public void ConfigureServices(IServiceCollection services)
{
services.Configure<MyConfig>(Configuration.GetSection("MyConfig"));
}
In your middleware
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using System;
using System.Threading.Tasks;
public class MyMiddleware
{
private readonly IOptions<MyConfig> _appSettings;
public MyMiddleware(RequestDelegate next, IOptions<MyConfig> config)
{
_next = next;
_configuration = config;
}
public MyMethod()
{
_configuration.Value.MyConfig1
}
}
In appsettings.json file:
{
"AppSettings": {
"AppId": "0001",
"AppName": "xxxx",
},
"MyConfig": {
"MyConfig1": "xxxxxxx",
"MyConfig2": "xxxxxxx",
},
}