asp.net - Cannot set Configuration from JSON appsettings file in .NET Core project -

since there's no configurationmanager class in .net core, have set config in appsettings.json instead web.config

according this blog post have set configuration there, did this:

{   "logging": {     "includescopes": false,     "loglevel": {       "default": "debug",       "system": "information",       "microsoft": "information"     }   },    "conexion": {     "name" : "empresas",     "connectionstring": "data source=empresas;initial catalog=catalma; integrated security=true;",     "providername": "system.data.sqlclient"   } } 

i writed "conexion".

now created in viewmodels folder following class:

public class conexionconfig      {        public string name { get; set; }         public string connectionstring { get; set; }         public string providername { get; set; }     } 

now, in startup.cs, in configureservices method, have add by:

public void configureservices(iservicecollection services)         {             // add framework services.             services.configure<conexionconfig>(configuration.getsection("conexion"));             services.addmvc();         } 

but unfortunately, following error:

argument 2: cannot convert       'microsoft.extensions.configuration.iconfigurationsection'      'system.action<conexionconfig>' 

what missing?

firstly, need add following nuget package asp core project.

microsoft.extensions.options.configurationextensions 

the extension methods contained in package allow configure typed configuration way wanted it.

services.configure<conexionconfig>(configuration.getsection("conexion")); 

alternatively, use binder directly answer in thread suggests without important previous package rather:

microsoft.extensions.configuration.binder 

this means have explicitly enable options on pipeline, , bind action. is:

services.addoptions(); services.configure<conexionconfig>(x => configuration.getsection("conexion").bind(x));