Moving common code to shared lib

automated-testing-demo.sln

@@ -7,6 +7,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "producer", "producer\produc
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "consumer", "consumer\consumer.csproj", "{1F8DAF6D-67B2-43C4-ACFD-38B8541722C3}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "shared", "shared\shared.csproj", "{6958D7C2-23D8-4383-9F03-6395DE86FD63}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -24,5 +26,9 @@ Global
 		{1F8DAF6D-67B2-43C4-ACFD-38B8541722C3}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1F8DAF6D-67B2-43C4-ACFD-38B8541722C3}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1F8DAF6D-67B2-43C4-ACFD-38B8541722C3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6958D7C2-23D8-4383-9F03-6395DE86FD63}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6958D7C2-23D8-4383-9F03-6395DE86FD63}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6958D7C2-23D8-4383-9F03-6395DE86FD63}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6958D7C2-23D8-4383-9F03-6395DE86FD63}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal

consumer/Consumer.cs

@@ -2,6 +2,7 @@
 using System.Threading;
 using Confluent.Kafka;
 using Model;
+using Repository;
 using Serializers;
 
 class Consumer
@@ -14,6 +15,8 @@ class Consumer
             AutoOffsetReset = AutoOffsetReset.Latest
         };
 
+        DataRepository dataRepository = new DataRepository("mongodb://mongo:mongo@localhost:27017", "mongo");
+
         using (var consumer = new ConsumerBuilder<Ignore, DataModel>(conf)
             .SetValueDeserializer(new JsonSerializer<DataModel>())
             .Build())
@@ -33,6 +36,7 @@ class Consumer
                     try
                     {
                         var cr = consumer.Consume(cts.Token);
+                        dataRepository.Save(cr.Message.Value);
             
                         Console.WriteLine($"Consumed message with id '{cr.Message.Value.id}' at: '{cr.TopicPartitionOffset}'.");
                     }

consumer/Repository/DataRepository.cs

@@ -0,0 +1,37 @@
+using Model;
+using MongoDB.Driver;
+
+namespace Repository
+{
+    public class DataRepository
+    {
+        private static string COLLECTION_NAME = "data";
+        private string _connectionString = "mongodb://mongo:mongo@localhost:27017";
+        private string _databaseName = "mongo";
+        private IMongoCollection<DataModel> _dataCollection;
+        private MongoClient _mongoClient;
+
+        public DataRepository(string connectionString, string databaseName)
+        {
+            this._connectionString = connectionString;
+            this._databaseName = databaseName;
+            this._mongoClient = new MongoClient(this._connectionString);
+
+            var db = this._mongoClient.GetDatabase(this._databaseName);
+            this._dataCollection = db.GetCollection<DataModel>(COLLECTION_NAME);
+        }
+
+        public DataRepository()
+        {
+            this._mongoClient = new MongoClient(this._connectionString);
+
+            var db = this._mongoClient.GetDatabase(this._databaseName);
+            this._dataCollection = db.GetCollection<DataModel>(COLLECTION_NAME);
+        }
+
+        public async void Save(DataModel data)
+        {
+            await this._dataCollection.InsertOneAsync(data);
+        }
+    }
+}

consumer/consumer.csproj

@@ -12,4 +12,8 @@
     <PackageReference Include="MongoDB.Driver" Version="2.26.0" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\shared\shared.csproj" />
+  </ItemGroup>
+
 </Project>

producer/Model/DataModel.cs

@@ -1,18 +0,0 @@
-namespace Model
-{
-    public class DataModel 
-    {
-        public DataModel(string id)
-        {
-            this.id = id;
-        }
-
-        public string id { get; set; }
-
-        public string? name { get; set; }
-
-        public string? description { get; set; }
-
-        public string? notes { get; set; }
-    }
-}

producer/Serializer/JsonSerializer.cs

@@ -1,22 +0,0 @@
-using Confluent.Kafka;
-using System.Text.Json;
-
-namespace Serializers
-{
-    public class JsonSerializer<T> : ISerializer<T>, IDeserializer<T>
-    {
-        public byte[] Serialize(T data, SerializationContext context)
-        {
-            return JsonSerializer.SerializeToUtf8Bytes(data);
-        }
-
-        public T Deserialize(ReadOnlySpan<byte> data, bool isNull, SerializationContext context)
-        {
-            if (!isNull)
-            {
-                return JsonSerializer.Deserialize<T>(data);
-            }
-            throw new Exception ("Data cannot be null");
-        }
-    }
-}

producer/producer.csproj

@@ -11,4 +11,8 @@
     <PackageReference Include="Confluent.Kafka" Version="2.4.0" />
   </ItemGroup>
 
+  <ItemGroup>
+    <ProjectReference Include="..\shared\shared.csproj" />
+  </ItemGroup>
+
 </Project>

shared/shared.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Confluent.Kafka" Version="2.4.0" />
+  </ItemGroup>
+
+</Project>