how to get value from appsettings.json

Question

public class Bar
{
    public static readonly string Foo = ConfigurationManager.AppSettings[\"Foo\"];
}

In the .NET Framework 4.x, I can use the

Answer 1

1. Add this in AppSettings.json file
   "Swagger": { "Title": "API DEVELOPMENT" }

2. Then configure that in Startup.cs file

   public Startup(IConfiguration configuration)
   {
       Configuration = configuration;
   }
   
   public IConfiguration Configuration { get; }
   

3. Next get the value from appsettings.json

   var title = Configuration.GetSection("Swagger:Title").Value;
   

4. Finally put here

   services.AddSwaggerGen(c => { c.SwaggerDoc("v1", new OpenApiInfo { Title = title, Version = "v1" }); }