Merge pull request #54 from cnblogs/tweak-MemcachedClientConfiguration

Set configuration to be optional in MemcachedClientConfiguration constructor

Author: cnblogs-dudu

Enyim.Caching/Configuration/MemcachedClientConfiguration.cs

@@ -27,7 +27,7 @@ public class MemcachedClientConfiguration : IMemcachedClientConfiguration
         public MemcachedClientConfiguration(
             ILoggerFactory loggerFactory,
             IOptions<MemcachedClientOptions> optionsAccessor,
-            IConfiguration configuration,
+            IConfiguration configuration = null,
             ITranscoder transcoder = null,
             IMemcachedKeyTransformer keyTransformer = null)
         {
@@ -39,7 +39,7 @@ public MemcachedClientConfiguration(
             _logger = loggerFactory.CreateLogger<MemcachedClientConfiguration>();
 
             var options = optionsAccessor.Value;
-            if(options == null || options.Servers.Count == 0)
+            if ((options == null || options.Servers.Count == 0) && configuration != null)
             {
                 configuration.GetSection("enyimMemcached").Bind(options);
             }

Enyim.Caching/Enyim.Caching.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <Description>EnyimMemcachedCore is a Memcached client library for .NET Core. Usage: Add services.AddEnyimMemcached(...) and app.UseEnyimMemcached() in Startup. Add IMemcachedClient into constructor.</Description>
-    <VersionPrefix>2.1.3</VersionPrefix>
+    <VersionPrefix>2.1.4</VersionPrefix>
     <Authors>cnblogs.com</Authors>
     <TargetFramework>netstandard2.0</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>