.Net CORE Dapper Connection String?

Question

I am setting up my first .NET Core application. I am going to user Dapper (1.50.0-rc2) for the ORM.

I have added the following to my appsettings.json file

Answer 1

I have a sample Console App for .NET core on my GitHub repository

Setup phase

var builder = new ConfigurationBuilder()
                .SetBasePath(Directory.GetCurrentDirectory())
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);

Build phase

Configuration = builder.Build();

Use phase

Configuration.GetConnectionString("DefaultConnection")

You can use this value for Dapper

P.S.

You need to add 3 dependencies into your project.json

"Microsoft.Extensions.Configuration": "1.0.0-rc2-final",
"Microsoft.Extensions.Configuration.FileExtensions": "1.0.0-rc2-final",
"Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-final"

UPDATED

Specific solution

make Configuration static property and add private setter

public static IConfigurationRoot Configuration { get; private set; }

and change your extension

namespace GamesCore.Extensions 
{
    public class ScoreExtensions 
    { 
        private static string dataConnectionString = Startup.Configuration.GetConnectionString("DefaultConnection"); 
    } 
}

For .NET Core 2.0 everything is same and only project file is changed so you need to use following packages: