fix: remove Console.WriteLine statements and replace with logging (#188)

* fix: remove Console.WriteLine statements and replace with logging

src/Momento.Sdk/Config/Middleware/LoggingMiddleware.cs

@@ -2,25 +2,35 @@
 using Grpc.Core;
 using System.Threading.Tasks;
 using Grpc.Core.Interceptors;
+using Microsoft.Extensions.Logging;
 
 namespace Momento.Sdk.Config.Middleware
 {
+    /// <summary>
+    /// Basic middleware that logs at debug level for each request/response.  This
+    /// is mostly provided as an example of how to implement middlewares.
+    /// </summary>
     public class LoggingMiddleware : IMiddleware
     {
+        private readonly ILogger _logger;
+
+        public LoggingMiddleware(ILoggerFactory loggerFactory)
+        {
+            _logger = loggerFactory.CreateLogger<LoggingMiddleware>();
+        }
 
         public async Task<MiddlewareResponseState<TResponse>> WrapRequest<TRequest, TResponse>(
             TRequest request,
             CallOptions callOptions,
             Func<TRequest, CallOptions, Task<MiddlewareResponseState<TResponse>>> continuation
         )
         {
-            Console.WriteLine($"LOGGING MIDDLEWARE WRAPPING REQUEST: {request.GetType()}");
+            _logger.LogDebug("Executing request of type: {}", request?.GetType());
             var nextState = await continuation(request, callOptions);
-            Console.WriteLine($"LOGGING MIDDLEWARE WRAPPED REQUEST: {request.GetType()}");
             return new MiddlewareResponseState<TResponse>(
                 ResponseAsync: nextState.ResponseAsync.ContinueWith(r =>
                 {
-                    Console.WriteLine($"LOGGING MIDDLEWARE RESPONSE CALLBACK: {request.GetType()}");
+                    _logger.LogDebug("Got response for request of type: {}", request?.GetType());
                     return r.Result;
                 }),
                 ResponseHeadersAsync: nextState.ResponseHeadersAsync,