public Startup(IWebHostEnvironment env, ILoggerFactory loggerFactory)
{
var builder = new ConfigurationBuilder()
.SetBasePath(env.ContentRootPath)
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
.AddJsonFile("cognitivemodels.json", optional: true)
.AddJsonFile($"cognitivemodels.{env.EnvironmentName}.json", optional: true)
.AddEnvironmentVariables();
Configuration = builder.Build();
DBHelper.Configuration = Configuration;
TextAnalyticsHelper.Configure(Configuration);
JournalHelper.Configure(Configuration);
TokensController.Configuration = Configuration;
GraphHelper.Configure(Configuration);
this.HostingEnvironment = env;
}