configure connection string in MVC 6 in vNext

How to configure connection string in MVC 6 in vNext?

You can configure your connection string in "appsettings.json". i.e.

In the below MVC 6 appsettings.json file.

Here is  two connections sting, one is default connection "DefaultConnection" and send one is "MVC6DemoContext".

You can see in below JSON file.

appsettings.json
{
  "ApplicationInsights": {
    "InstrumentationKey": ""
  },
  "Data": {
    "DefaultConnection": {
      "ConnectionString": "Server=(localdb)\\mssqllocaldb;Database=aspnet5-WebApplication1-b2a87fa4-3c62-4931-8248-76a6b22a08d1;Trusted_Connection=True;MultipleActiveResultSets=true"
    },
    "MVC6DemoContext": {
      "ConnectionString": "Server=myServer;Database=MVC6_Demo;User ID=sa;Password=demo-password; Trusted_Connection=True;MultipleActiveResultSets=true; Integrated Security=false;"
    }
  },
  "Logging": {
    "IncludeScopes": false,
    "LogLevel": {
      "Default": "Verbose",
      "System": "Information",
      "Microsoft": "Information"
    }
  }
}


Configure your connection string in application Start-up

  public class Startup
  {
        public Startup(IHostingEnvironment env)
        {
            // Set up configuration sources.

            var builder = new ConfigurationBuilder()
                .AddJsonFile("appsettings.json")
                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true);

            if (env.IsDevelopment())
            {
                // For more details on using the user secret store see http://go.microsoft.com/fwlink/?LinkID=532709
                builder.AddUserSecrets();

                // This will push telemetry data through Application Insights pipeline faster, allowing you to view results immediately.
                builder.AddApplicationInsightsSettings(developerMode: true);
            }

            builder.AddEnvironmentVariables();
            Configuration = builder.Build();
        }

        public IConfigurationRoot Configuration { get; set; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            // Add framework services.
            services.AddApplicationInsightsTelemetry(Configuration);

            services.AddEntityFramework()
                .AddSqlServer()
                .AddDbContext<ApplicationDbContext>(options =>
                    options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]));

            services.AddEntityFramework()
                .AddSqlServer()
                .AddDbContext<DbContext>(options =>
                    options.UseSqlServer(Configuration["Data:MVC6DemoContext:ConnectionString"]));

            services.AddIdentity<ApplicationUser, IdentityRole>()
                .AddEntityFrameworkStores<ApplicationDbContext>()
                .AddDefaultTokenProviders();

            services.AddMvc();

            // Add application services.
            services.AddTransient<IEmailSender, AuthMessageSender>();
            services.AddTransient<ISmsSender, AuthMessageSender>();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(Configuration.GetSection("Logging"));
            loggerFactory.AddDebug();

            app.UseApplicationInsightsRequestTelemetry();

            if (env.IsDevelopment())
            {
                app.UseBrowserLink();
                app.UseDeveloperExceptionPage();
                app.UseDatabaseErrorPage();
            }
            else
            {
                app.UseExceptionHandler("/Home/Error");

                // For more details on creating database during deployment see http://go.microsoft.com/fwlink/?LinkID=615859
                try
                {
                    using (var serviceScope = app.ApplicationServices.GetRequiredService<IServiceScopeFactory>()
                        .CreateScope())
                    {
                        serviceScope.ServiceProvider.GetService<ApplicationDbContext>()
                             .Database.Migrate();
                    }
                }
                catch { }
            }

            app.UseIISPlatformHandler(options => options.AuthenticationDescriptions.Clear());

            app.UseApplicationInsightsExceptionTelemetry();

            app.UseStaticFiles();

            app.UseIdentity();

            // To configure external authentication please see http://go.microsoft.com/fwlink/?LinkID=532715

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
            });
        }

        // Entry point for the application.
        public static void Main(string[] args) => WebApplication.Run<Startup>(args);
    }


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