.NET Core MVC: Get values from Configuration file

The following code initially exists in the Startup.cs file:

public Startup(IConfiguration configuration)

{

Configuration = configuration;

}

This implies that the configuration will be injected in other classes found in your project. As a result, you can get the configuration from any class files.
Example: Accessing configuration in controller:
1. define a property of type IConfiguration in the class
2. inject IConfiguration parameter in your constructor
3. access the Configuration property defined from any method

public IConfiguration Configuration;

public HomeController(IConfiguration configuration)

{

Configuration = configuration;

}

public IActionResult Index()

{

ViewData["test"] = Configuration["Logging:LogLevel:Default"];

Sample appsettings.json file:

{

  "Logging": {

    "LogLevel": {

      "Default": "Warning"

    }

  },

  "ConnectionStrings": {

    "DefaultConnection": "server=localhost;port=3307;database=test;user=root;password=;Persist Security Info=False;SSL Mode =None;"

  },

  "AllowedHosts": "*"

}