feat: Change RAbbitMQ Conenction to Pool and Add k6 Test Script for max request per second.

BMA.EHR.Leave/Services/RabbitMqConnectionPoolPolicy.cs

@@ -0,0 +1,53 @@
+using Microsoft.Extensions.ObjectPool;
+using RabbitMQ.Client;
+
+namespace BMA.EHR.Leave.Service.Services;
+
+public class RabbitMqConnectionPoolPolicy : IPooledObjectPolicy<IModel>
+{
+    #region " Fields "
+
+    private readonly IConnection _connection;
+    private readonly IConfiguration _configuration;
+
+    #endregion
+
+    #region " Constructor and Destructor "
+
+    public RabbitMqConnectionPoolPolicy(IConfiguration configuration)
+    {
+        _configuration = configuration;
+
+        var factory = new ConnectionFactory()
+        {
+            HostName = _configuration["Rabbit:Host"],
+            UserName = _configuration["Rabbit:User"],
+            Password = _configuration["Rabbit:Password"]
+        };
+        _connection = factory.CreateConnection();
+    }
+
+    #endregion
+
+    #region " Methods "
+
+    public IModel Create()
+    {
+        return _connection.CreateModel();
+    }
+
+    public bool Return(IModel obj)
+    {
+        if (obj.IsOpen)
+        {
+            return true;
+        }
+        else
+        {
+            obj.Dispose();
+            return false;
+        }
+    }
+
+    #endregion
+}