entity framework - ASP.NET Core get WebRootPath in class to seed database -

using asp.net core mvc , entity framework 6, want seed code-first database data csv file have placed in wwwroot\data

i trying access webrootpath value in class performs seed cannot work. understand solution based on dependency injection though being new asp.net core , dependency injection haven't got work.

startup.cs - standard code, dbcontext setup found via question.

public class startup {     public startup(ihostingenvironment env)     {         var builder = new configurationbuilder()             .setbasepath(env.contentrootpath)             .addjsonfile("appsettings.json", optional: true, reloadonchange: true)             .addjsonfile($"appsettings.{env.environmentname}.json", optional: true)             .addenvironmentvariables();         configuration = builder.build();     }      public iconfigurationroot configuration { get; }      // method gets called runtime. use method add services container.     public void configureservices(iservicecollection services)     {         // add dbcontext         services.addscoped(p =>         {             var connectionstring = configuration["data:projectdbcontext:connectionstring"];             return new projectdbcontext(connectionstring);         });          // add framework services.         services.addmvc();     }      // method gets called runtime. use method configure http request pipeline.     public void configure(iapplicationbuilder app, ihostingenvironment env, iloggerfactory loggerfactory)     {         loggerfactory.addconsole(configuration.getsection("logging"));         loggerfactory.adddebug();          if (env.isdevelopment())         {             app.usedeveloperexceptionpage();             app.usebrowserlink();         }         else         {             app.useexceptionhandler("/home/error");         }          app.usestaticfiles();          app.usemvc(routes =>         {             routes.maproute(                 name: "default",                 template: "{controller=home}/{action=index}/{id?}");         });     } } 

projectdbcontext.cs

[dbconfigurationtype(typeof(dbconfig))] public class projectdbcontext : dbcontext {     static projectdbcontext ()     {         database.setinitializer(new projectinitializer());     }      public projectdbcontext (string connectionname) : base(connectionname)     {      }      public dbset<someentity> someentity{ get; set; }      protected override void onmodelcreating(dbmodelbuilder modelbuilder)     {         modelbuilder.conventions.remove<pluralizingtablenameconvention>();         base.onmodelcreating(modelbuilder);     } } 

projectinitializer.cs

public class projectinitializer : dropcreatedatabasealways<projectdbcontext> {     private readonly ihostingenvironment _appenvironment;      public projectinitializer(ihostingenvironment appenvironment)     {         _appenvironment = appenvironment;     }      public override void initializedatabase(projectdbcontext context)     {         base.initializedatabase(context);     }      protected override void seed(projectdbcontext db)     {         string datapath = path.combine(_appenvironment.webrootpath, "data");         string contracts = path.combine(datapath, "data.csv");          // parse file, create objects          db.savechanges();     } } 

i think problem environment not being passed projectinitializer. you'll need inject environment dbcontext , pass projectinitializer. not see 'ihostingenvironment appenvironment' parameter in dbcontext.

by way, aware can use contentrootpath instead of webrootpath?