.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

My walkthrough:

1. Add ConnectionStrings section in appsettings.json:

   "ConnectionStrings": {
      "cs1": "Server=xxxx;Port=xxxx;Database=xxxx; User Id=xxxx;Password=xxxx;Pooling=false;",
      "cs2": "Server=xxxx;Port=xxxx;Database=xxxx; User Id=xxxx;Password=xxxx;Pooling=false;",
      "cs3": "Server=xxxx;Port=xxxx;Database=xxxx; User Id=xxxx;Password=xxxx;Pooling=false;"
   },
   

2. Create class that represents the connection strings section:

   public class ConnectionStringList
   {
       public string cs1 { get; set; }
       public string cs2 { get; set; }
       public string cs3 { get; set; }
   }
   

3. Open Startup.cs and add the above configuration class to the services collection in ConfigureServices:

   public void ConfigureServices(IServiceCollection services)
   {
       ...
       services.AddOptions();
       services.Configure(Configuration.GetSection("ConnectionStrings"));
   }
   

4. Inject IOptions into your controller/service etc. and retreive your connection string value from Value property:

   public SampleController(IOptions connectionStrings)
   {
       string cs1 = connectionStrings.Value.cs1;
       ...