Handle HTTP 404 exception for UGC File Details lookup.

Author: babelshift

SteamWebAPI2/Interfaces/SteamRemoteStorage.cs

@@ -3,6 +3,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Net.Http;
 using System.Threading.Tasks;
 
 namespace SteamWebAPI2.Interfaces
@@ -18,7 +19,7 @@ public async Task<UGCFileDetails> GetUGCFileDetailsAsync(long ugcId, int appId,
         {
             Debug.Assert(appId > 0);
 
-            if(ugcId <= 0)
+            if (ugcId <= 0)
             {
                 return null;
             }
@@ -29,8 +30,15 @@ public async Task<UGCFileDetails> GetUGCFileDetailsAsync(long ugcId, int appId,
             AddToParametersIfHasValue(appId, "appid", parameters);
             AddToParametersIfHasValue(steamId, "steamid", parameters);
 
-            var ugcFileDetails = await CallMethodAsync<UGCFileDetailsResultContainer>("GetUGCFileDetails", 1, parameters);
-            return ugcFileDetails.Result;
+            try
+            {
+                var ugcFileDetails = await CallMethodAsync<UGCFileDetailsResultContainer>("GetUGCFileDetails", 1, parameters);
+                return ugcFileDetails.Result;
+            }
+            catch (HttpRequestException)
+            {
+                return null;
+            }
         }
     }
 }

SteamWebAPI2/SteamWebRequest.cs

@@ -117,7 +117,7 @@ public string BuildRequestCommand(string interfaceName, string methodName, int m
             string commandUrl = String.Format("{0}/{1}/{2}/v{3}/", steamWebApiBaseUrl, interfaceName, methodName, methodVersion);
 
             // if we have parameters, join them together with & delimiter and append them to the command URL
-            if(parameters != null && parameters.Count > 0)
+            if (parameters != null && parameters.Count > 0)
             {
                 string parameterString = String.Join("&", parameters);
                 commandUrl += String.Format("?{0}", parameterString);