Merge with official schema

src/JsonSchema/UmbracoJsonSchemaGenerator.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Net.Http;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using NJsonSchema.Generation;
+
+namespace JsonSchema
+{
+    public class UmbracoJsonSchemaGenerator
+    {
+        private readonly JsonSchemaGenerator _innerGenerator;
+        private static readonly HttpClient s_client = new HttpClient();
+
+        public UmbracoJsonSchemaGenerator()
+        {
+            _innerGenerator = new JsonSchemaGenerator(new UmbracoJsonSchemaGeneratorSettings());
+        }
+
+        public async Task<string> Generate()
+        {
+            var umbracoSchema = GenerateUmbracoSchema();
+            var officialSchema = await GetOfficialAppSettingsSchema().ConfigureAwait(false);;
+
+            officialSchema.Merge(umbracoSchema);
+
+            return officialSchema.ToString();
+        }
+
+        private async Task<JObject> GetOfficialAppSettingsSchema()
+        {
+
+            var response = s_client.GetAsync(new Uri("https://json.schemastore.org/appsettings.json")).GetAwaiter().GetResult();
+
+
+            var result =  await response.Content.ReadAsStringAsync();
+
+            return JsonConvert.DeserializeObject<JObject>(result);
+
+        }
+
+        private JObject GenerateUmbracoSchema()
+        {
+            var schema = _innerGenerator.Generate(typeof(AppSettings));
+
+            return JsonConvert.DeserializeObject<JObject>(schema.ToJson());
+        }
+    }
+}