Added Dapper JSON Type Handler example

In json/Dapper-ORM is added new example that maps string[] and object properties to JSON.

Author: JocaPC

samples/features/json/Dapper-Orm/Controllers/ProductController.cs

@@ -1,5 +1,6 @@
 using Dapper;
 using Microsoft.AspNetCore.Mvc;
+using System.Collections.Generic;
 using System.Data;
 using System.IO;
 using System.Threading.Tasks;
@@ -96,5 +97,25 @@ from Product
 group by Color
 FOR JSON PATH");
         }
+
+        // GET api/Product/Report2
+        [HttpGet("ORM")]
+        public List<Product> ORM()
+        {
+            var products = connection.Query<Product>(@"select * from Product");
+            return products.AsList();
+        }
+    }
+
+    public class Product
+    {
+        public int ProductID;
+        public string Name;
+        public string Color;
+        public string Size;
+        public double Price;
+        public int Quantity;
+        public object Data;
+        public string[] Tags;
     }
 }

samples/features/json/Dapper-Orm/Dapper-Orm.csproj

@@ -0,0 +1,41 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net451</TargetFramework>
+    <PreserveCompilationContext>true</PreserveCompilationContext>
+    <AssemblyName>Dapper-Orm</AssemblyName>
+    <OutputType>Exe</OutputType>
+    <PackageId>Dapper-Orm</PackageId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <None Include="App.config" />
+    <None Update="wwwroot\**\*;Views">
+      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
+    </None>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Dapper" Version="1.50.2" />
+    <PackageReference Include="Dapper.JsonTypeMapping" Version="0.8.2" />
+    <PackageReference Include="Dapper.Stream" Version="0.1.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.0.3" />
+    <PackageReference Include="Microsoft.AspNetCore.Server.IISIntegration" Version="1.0.2" />
+    <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="1.0.3" />
+    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="1.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="1.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.FileExtensions" Version="1.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="1.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="1.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="1.0.2" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="1.0.2" />
+    <PackageReference Include="System.Data.Common" Version="4.3.0" />
+    <PackageReference Include="System.Data.SqlClient" Version="4.3.0" />
+  </ItemGroup>
+
+  <ItemGroup Condition=" '$(TargetFramework)' == 'net451' ">
+    <Reference Include="System" />
+    <Reference Include="Microsoft.CSharp" />
+  </ItemGroup>
+
+</Project>

samples/features/json/Dapper-Orm/ProductCatalog.xproj

@@ -1,4 +1,5 @@
-using Microsoft.AspNetCore.Builder;
+using Dapper;
+using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
@@ -25,6 +26,10 @@ public Startup(IHostingEnvironment env)
         // This method gets called by the runtime. Use this method to add services to the container.
         public void ConfigureServices(IServiceCollection services)
         {
+            // Map sting[] and object properties in model to JSON column in database.
+            SqlMapper.AddTypeHandler(typeof(string[]), new StringArrayJsonMapper());
+            SqlMapper.AddTypeHandler(typeof(object), new ObjectJsonMapper());
+
             string ConnString = Configuration["ConnectionStrings:ProductCatalog"];
             services.AddTransient<IDbConnection>(_ => new SqlConnection(ConnString));