How to debug android application which is using API from IIS

Question

I have web api project which I have deployed on IIS and these api's are consumed by android application now I got few errors I want to debug the version which is deployed on IIS , can I debug it ? like when someone press the button from android I can navigate to the code in visual studio but that is deployed on IIS

Rijwan Ansari · Answer

You can implement swagger and test it through browser by passing same values in the parameters. However, to debug in IIS hosted app check below article for step by step. https://ourtechroom.com/tech/debug-iis-hosted-aspnet-web-application-visual-studio/

Mark Tabor · Answer

Swagger and postman require to send the request from them by passing paramters in header or body but in my case I want to see these paramters coming from android application not from swagger or postman or fiddler

Sachin Singh · Answer

@Mark, No, he meant to say integrate swagger to your API so that you can test it. But, in your case as you want to debug a deployed API, you don't need swagger, swagger is just a client as Postman. You need some kind of logger which logs the error. you can integrate NLog, or you can simply log errors to any text file using below code using System; using System.IO; using context = System.Web.HttpContext; public static class ExceptionLogging { private static String ErrorlineNo, Errormsg, extype, exurl, hostIp,ErrorLocation, HostAdd; public static void SendErrorToText(Exception ex) { var line = Environment.NewLine + Environment.NewLine; ErrorlineNo = ex.StackTrace.Substring(ex.StackTrace.Length - 7, 7); Errormsg = ex.GetType().Name.ToString(); extype = ex.GetType().ToString(); exurl = context.Current.Request.Url.ToString(); ErrorLocation = ex.Message.ToString(); try { string filepath = context.Current.Server.MapPath( "~/ExceptionDetailsFile/" ); //Text File Path if (!Directory.Exists(filepath)) { Directory.CreateDirectory(filepath); } filepath = filepath + DateTime.Today.ToString( "dd-MM-yy" ) + ".txt" ; //Text File Name if (!File.Exists(filepath)) { File.Create(filepath).Dispose(); } using (StreamWriter sw = File.AppendText(filepath)) { string error = "Log Written Date:" + " " + DateTime.Now.ToString() + line + "Error Line No :" + " " + ErrorlineNo + line + "Error Message:" + " " + Errormsg + line + "Exception Type:" + " " + extype + line + "Error Location :" + " " + ErrorLocation + line + " Error Page Url:" + " " + exurl + line + "User Host IP:" + " " + hostIp + line; sw.WriteLine( "-----------Exception Details on " + " " + DateTime.Now.ToString() + "-----------------" ); sw.WriteLine( "-------------------------------------------------------------------------------------" ); sw.WriteLine(line); sw.WriteLine(error); sw.WriteLine( "--------------------------------*End*------------------------------------------" ); sw.WriteLine(line); sw.Flush(); sw.Close(); } } catch (Exception e) { e.ToString(); } } } try { //your code } catch (Exception ex) { ExceptionLogging.SendErrorToText(ex); } Other option is to directly trace the errors on IIS https://stackify.com/beyond-iis-logs-find-failed-iis-asp-net-requests/

Mark Tabor · Answer

Thanks as I have pointed my API project from IIS to my File system i mean the folder location where I have the code the application is made using mVC so these API are consumed by MObile application android so when I hit a button on android I can move to Visual studio debug points ? are you sure ? rijwan