c# - Handling WCF Rest Service exceptions only in one place -

i'm developing wcf rest service i'm going host on iis.

now i'm implementing service contract, , see i'm repeating same code on of methods when i'm trying handle exceptions.

this 1 of service contract method:

public void deletemessage(string message_id) {     int messageid;     outgoingwebresponsecontext ctx =         weboperationcontext.current.outgoingresponse;      if ((message_id == null) || (!int32.tryparse(message_id, out messageid)) || (messageid < 1))     {         ctx.statuscode = system.net.httpstatuscode.badrequest;         ctx.statusdescription = "message_id parameter not valid";         throw new argumentexception("deletemessage: message_id not valid", "message_id");     }      try     {         using (var context = new adnlinecontext())         {             message message = new message() { messageid = messageid };              context.entry(message).state = entitystate.deleted;             context.savechanges();              ctx.statuscode = system.net.httpstatuscode.ok;         }     }     catch (exception ex)     {         ctx.statuscode = system.net.httpstatuscode.internalservererror;         ctx.statusdescription = ex.message;         ctx.suppressentitybody = true;     } } 

on of methods throw argumentexception or exception, , manage them return http status code.

is there way catch exceptions globally?

ms-recommended approach appears follow faultexception pattern. idea implement ierrorhandler interface. this answer explains how set in wcf configuration.

having seen implementation of pattern in old-style wcf service can tell makes sense complex enterprise-level scenarios. simple cases i'd stick throwing exceptions manually.

another alternative implement rest service web api. has nice exception handling strategy out of box , that's microsoft recommends rest development in .net technology guide business applications.