Add initial sample for writable JSON DOM

README.md

@@ -1,4 +1,4 @@
-# Samples for ASP.NET Core 5.0 (357)
+# Samples for ASP.NET Core 5.0 (358)
 
 While I got your attention, Palestine needs helps. Support [Palestine Children's Relief Fund](https://www.charitynavigator.org/index.cfm?bay=search.summary&orgid=6421).
 
@@ -10,7 +10,7 @@ I highly recommend using [Visual Studio Code](https://code.visualstudio.com/) to
 
 [3.1 LTS](https://github.com/dodyg/practical-aspnetcore/tree/3.1-LTS/), [2.1 LTS](https://github.com/dodyg/practical-aspnetcore/tree/2.1-LTS)
 
-## .NET 6 Preview 5 Section (18)
+## .NET 6 Preview 5 Section (19)
 
 You can access .NET 6 Preview 5 specific samples [here](projects/net6).
 

projects/net6/README.md

@@ -1,4 +1,4 @@
-# .NET 6 (18)
+# .NET 6 (19)
 
 This section has for .NET 6 new functionalities. All these samples require .NET 6 Preview 5(`6.0.100-preview.5.21302.13`) which you can obtain [here](https://dotnet.microsoft.com/download/dotnet/6.0).
 
@@ -80,4 +80,10 @@ In most cases using ```WebApplication``` isn't enough because you need to config
 This section showcases creating reverse proxy using YARP package.
 * [Basic Demo](yarp/basic-demo)
 
-  Basic demo with simple YARP routing.
+  Basic demo with simple YARP routing.
+
+## Writable JSON DOM
+
+* [Primitives](json/json-12)
+
+  This sample shows how to parse and access number, string and an array values from JSON string.

projects/net6/json/json-12/README.md

@@ -0,0 +1,3 @@
+# Writable DOM
+
+This sample shows how to parse and access number, string and an array values from JSON string.

projects/net6/json/json-12/json-12.csproj

@@ -0,0 +1,6 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <LangVersion>preview</LangVersion>
+  </PropertyGroup>
+</Project>

projects/net6/json/json-12/src/Program.cs

@@ -0,0 +1,39 @@
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Http;
+using Microsoft.Extensions.Hosting;
+using System.Text.Json;
+using System.Text.Json.Nodes;
+
+WebApplication app = WebApplication.Create();
+
+app.Run(async context =>
+{
+    var numberNode = JsonNode.Parse(@"{""age"" : 34 }");
+    int age = (int) numberNode["age"];
+    await context.Response.WriteAsync($"{numberNode} \n");
+    await context.Response.WriteAsync($"Value of age is {age}\n\n\n");
+    
+
+    var stringNode = JsonNode.Parse(@"{""name"" : ""anne""}");
+    string name = (string) stringNode["name"];
+    await context.Response.WriteAsync($"{stringNode} \n");
+    await context.Response.WriteAsync($"Value of name is {name}\n\n\n");
+
+    var numberArrayNode = JsonNode.Parse("[2, 4, 6]");
+    await context.Response.WriteAsync($"{numberArrayNode}\n");
+    int item0 = (int) numberArrayNode[0];
+    int item1 = (int) numberArrayNode[1];
+    int item2 = (int) numberArrayNode[2];
+    await context.Response.WriteAsync($"Values of array: {item0}, {item1}, {item2}\n\n");
+
+    //alternatively
+    JsonArray childrenAge = numberArrayNode.AsArray();
+    await context.Response.WriteAsync($"Size of array: {childrenAge.Count}\nValues of array: ");
+    foreach(JsonNode r in childrenAge)
+    {
+        await context.Response.WriteAsync($"{r}, ");
+    }
+});
+
+await app.RunAsync();