upgrade sample reference version (#128)

Author: vicancy

samples/ChatRoom/ChatRoom.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
     <UserSecretsId>chatroom</UserSecretsId>
     <RootNamespace>Microsoft.Azure.SignalR.Samples.ChatRoom</RootNamespace>
   </PropertyGroup>
@@ -10,7 +10,6 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.App" Version="2.2.0" />
-    <PackageReference Include="Microsoft.Azure.SignalR" Version="1.0.*" />
+    <PackageReference Include="Microsoft.Azure.SignalR" Version="1.*" />
   </ItemGroup>
 </Project>

samples/ChatRoom/Dockerfile

@@ -38,7 +38,7 @@ Then, let's update the chat room sample to use the new service you just created.
 
 Let's look at the key changes:
 
-1.  In [Startup.cs](Startup.cs), instead of calling `AddSignalR()` and `UseSignalR()`, you need to call `AddAzureSignalR()` and `UseAzureSignalR()` and pass in connection string to make the application connect to the service instead of hosting SignalR by itself.
+1.  In [Startup.cs](Startup.cs), call `AddAzureSignalR()` after `AddSignalR()` and pass in connection string to make the application connect to the service instead of hosting SignalR by itself.
 
     ```cs
     public void ConfigureServices(IServiceCollection services)
@@ -47,21 +47,12 @@ Let's look at the key changes:
         services.AddSignalR()
                 .AddAzureSignalR();
     }
-
-    public void Configure(IApplicationBuilder app)
-    {
-        ...
-        app.UseAzureSignalR(routes => 
-        { 
-            routes.MapHub<Chat>("/chat"); 
-        });
-    }
     ```
 
     You also need to reference the service SDK before using these APIs. This is how that would look in your ChatRoom.csproj file:
 
     ```xml
-    <PackageReference Include="Microsoft.Azure.SignalR" Version="1.0.*" />
+    <PackageReference Include="Microsoft.Azure.SignalR" Version="1.*" />
     ```
 
 Other than these changes, everything else remains the same, you can still use the hub interface you're already familiar with to write business logic.

samples/ChatRoom/README.md

@@ -2,34 +2,33 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
 using Microsoft.AspNetCore.Builder;
-using Microsoft.Extensions.Configuration;
+using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace Microsoft.Azure.SignalR.Samples.ChatRoom
 {
     public class Startup
     {
-        public Startup(IConfiguration configuration)
-        {
-            Configuration = configuration;
-        }
-
-        public IConfiguration Configuration { get; }
-
         public void ConfigureServices(IServiceCollection services)
         {
-            services.AddMvc();
             services.AddSignalR()
                     .AddAzureSignalR();
         }
 
-        public void Configure(IApplicationBuilder app)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
-            app.UseMvc();
-            app.UseFileServer();
-            app.UseAzureSignalR(routes =>
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+
+            app.UseDefaultFiles();
+            app.UseStaticFiles();
+            app.UseRouting();
+            app.UseEndpoints(endpoints =>
             {
-                routes.MapHub<ChatSampleHub>("/chat");
+                endpoints.MapHub<ChatSampleHub>("/chat");
             });
         }
     }

samples/ChatRoom/Startup.cs

@@ -3,12 +3,12 @@
     "IncludeScopes": false,
     "Debug": {
       "LogLevel": {
-        "Default": "Debug"
+        "Default": "Information"
       }
     },
     "Console": {
       "LogLevel": {
-        "Default": "Debug"
+        "Default": "Information"
       }
     }
   }

samples/ChatRoom/appsettings.json

@@ -16,7 +16,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.SignalR" Version="1.4.*" />
+    <PackageReference Include="Microsoft.Azure.SignalR" Version="1.*" />
   </ItemGroup>
 
     <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.0' OR '$(TargetFramework)' == 'netcoreapp3.1'">