CXM-5555: UrlPurger function to log variable values and disable trigger on startup (#19)

https://storis.atlassian.net/browse/CXM-5555

Fixed issue where variable values were not being incorporated into logs.
Set UrlPurger function's RunOnStartup param to false.
Updated the NLogWrapper classes log method to accept an unknown number of replacement values.

Author: mattisax

src/api/function/UrlPurger.cs

@@ -20,17 +20,18 @@ public UrlPurger(ILoggerFactory loggerFactory, AdminApiSettings settings)
         }
 
         [Function("UrlPurger")]
-        public async Task Run([TimerTrigger("0 0 6 * * *", RunOnStartup = true)] MyInfo myTimer)
+        public async Task Run([TimerTrigger("0 0 6 * * *", RunOnStartup = false)] MyInfo myTimer)
         {
-            logger.Log(NLog.LogLevel.Info, "C# Timer trigger function executed at {trigger.current}", DateTime.Now.ToString());
-            logger.Log(NLog.LogLevel.Info, "Next timer scheduled for {trigger.next}", myTimer.ScheduleStatus.Next.ToString());
+            logger.Log(NLog.LogLevel.Info, "C# Timer trigger function executed at {0}", DateTime.Now.ToString());
+            logger.Log(NLog.LogLevel.Info, "Next timer scheduled for {0}", myTimer.ScheduleStatus.Next.ToString());
 
             var storageTableHelper = new StorageTableHelper(_adminApiSettings.UlsDataStorage);
             var urlsToPurge = await storageTableHelper.GetShortUrlEntitiesToPurge(7);
             foreach (var urlToPurge in urlsToPurge)
             {
 
-                logger.Log(NLog.LogLevel.Info, "Deleting ShortUrl: {urlToPurge.ShortUrl} | Title: {urlToPurge.Title} | CreatedAt: {urlToPurge.Timestamp}", urlToPurge.RowKey, urlToPurge.Title, urlToPurge.Timestamp.ToString());
+                logger.Log(NLog.LogLevel.Info, "Deleting ShortUrl: {0} | Title: {1} | CreatedAt: {2}",
+                    urlToPurge.RowKey, urlToPurge.Title, urlToPurge.Timestamp.ToString());
 
                 await storageTableHelper.DeleteShortUrlEntity(urlToPurge);
             }

src/api/function/UrlShortener.cs

@@ -86,7 +86,7 @@ ExecutionContext context
                 // Validates if input.url is a valid aboslute url, aka is a complete refrence to the resource, ex: http(s)://google.com
                 if (!Uri.IsWellFormedUriString(input.Url, UriKind.Absolute))
                 {
-                    logger.Log(NLog.LogLevel.Warn, "{url.longUrl} is not a valid absolute Url. The Url parameter must start with 'http://' or 'https://'.", input.Url);
+                    logger.Log(NLog.LogLevel.Warn, "{0} is not a valid absolute Url. The Url parameter must start with 'http://' or 'https://'.", input.Url);
                     var badResponse = req.CreateResponse(HttpStatusCode.BadRequest);
                     await badResponse.WriteAsJsonAsync(new { message = $"{input.Url} is not a valid absolute Url. The Url parameter must start with 'http://' or 'https://'." });
                     return badResponse;
@@ -106,7 +106,7 @@ ExecutionContext context
                     newRow = new ShortUrlEntity(longUrl, vanity, title, input.Schedules);
                     if (await stgHelper.IfShortUrlEntityExist(newRow))
                     {
-                        logger.Log(NLog.LogLevel.Warn, "The Short URL {url.shortUrl} already exists.", vanity);
+                        logger.Log(NLog.LogLevel.Warn, "The Short URL {0} already exists.", vanity);
                         var badResponse = req.CreateResponse(HttpStatusCode.Conflict);
                         await badResponse.WriteAsJsonAsync(new { message = $"The Short URL {vanity} already exists." });
                         return badResponse;
@@ -122,11 +122,11 @@ ExecutionContext context
                 var host = string.IsNullOrEmpty(_adminApiSettings.customDomain) ? req.Url.Host : _adminApiSettings.customDomain.ToString();
                 result = new ShortResponse(host, newRow.Url, newRow.RowKey, newRow.Title);
 
-                logger.Log(NLog.LogLevel.Info, "Short Url {url.shortUrl} for url {url.longUrl} created", newRow.RowKey, longUrl);
+                logger.Log(NLog.LogLevel.Info, "Short Url {0} for url {1} created", newRow.RowKey, longUrl);
             }
             catch (Exception ex)
             {
-                logger.Log(NLog.LogLevel.Error, "An unexpected error was encountered: {message}", ex.Message);
+                logger.Log(NLog.LogLevel.Error, "An unexpected error was encountered: {0}", ex.Message);
                 var badResponse = req.CreateResponse(HttpStatusCode.BadRequest);
                 await badResponse.WriteAsJsonAsync(new { message = ex.Message });
                 return badResponse;

src/lib/NLogWrapper.cs

@@ -1,6 +1,4 @@
-using System;
-using System.Web;
-using Cloud5mins.domain;
+using Cloud5mins.domain;
 using NLog;
 
 public enum LoggerType
@@ -23,7 +21,7 @@ public NLogWrapper(LoggerType loggerType, AdminApiSettings settings)
         initializeLogger(loggerType, settings);
     }
 
-    public void Log(LogLevel logLevel, String message, string arg1 = null, string arg2 = null, string arg3 = null)
+    public void Log(LogLevel logLevel, String message, params object[] args)
     {
         NLog.LogManager.Configuration = new NLog.Config.XmlLoggingConfiguration("NLog.config");
         var configuration = LogManager.Configuration;
@@ -35,7 +33,7 @@ public void Log(LogLevel logLevel, String message, string arg1 = null, string ar
 
         getCallerName();
 
-        logger.Log(logLevel, message, arg1, arg2);
+        logger.Log(logLevel, message, args);
     }
 
     private void initializeLogger(LoggerType loggerType, AdminApiSettings settings)