support for custom SteamWebApiBaseUrl (#122)

Author: readmaniak

src/SteamWebAPI2/Utilities/SteamWebInterfaceFactory.cs

@@ -44,6 +44,11 @@ public SteamWebInterfaceFactory(IOptions<SteamWebInterfaceFactoryOptions> option
 
             this.steamWebApiKey = options.Value.SteamWebApiKey;
 
+            if (!string.IsNullOrWhiteSpace(options.Value.SteamWebApiBaseUrl))
+            {
+                this.steamWebApiBaseUrl = options.Value.SteamWebApiBaseUrl;
+            }
+
             var mapperConfig = new MapperConfiguration(config =>
             {
                 config.AddProfile<SteamWebResponseProfile>();

src/SteamWebAPI2/Utilities/SteamWebInterfaceFactoryOptions.cs

@@ -3,5 +3,6 @@ namespace SteamWebAPI2.Utilities
     public class SteamWebInterfaceFactoryOptions
     {
         public string SteamWebApiKey { get; set; }
+        public string SteamWebApiBaseUrl { get; set; }
     }
 }