Executing Code in Creatio Application and Session Start and Shutdown Events

If you need to execute custom code when the Creatio application starts up or shuts down, or when a user session starts or ends, you can easily do so by creating a class that inherits from AppEventListenerBase and overriding OnAppStart, OnAppEnd, OnSessionStart, or OnSessionEnd.

Let’s take a look at a sample class that executes some code when the Creatio application starts.

using Terrasoft.Common;
using Terrasoft.Core;
using Terrasoft.Web.Common;

namespace Terrasoft.Configuration
{
    public class CustomAppEventListener : AppEventListenerBase
    {
        protected UserConnection GetUserConnection(AppEventContext context)
        {
            var appConnection = context.Application["AppConnection"] as AppConnection;
            return appConnection?.SystemUserConnection;
        }

        public override void OnAppStart(AppEventContext context)
        {
            base.OnAppStart(context);
            var userConnection = GetUserConnection(context);

            // DO SOMETHING ON APPLICATION START HERE
        }
    }
}

Similarly, if you need to respond to a user starting a session, you can use this same approach, however, you’ll get the UserConnection from their session so you can determine the user who started the session.

using Terrasoft.Common;
using Terrasoft.Core;
using Terrasoft.Web.Common;
using Terrasoft.Web.Http.Abstractions;

namespace Terrasoft.Configuration
{
    public class CustomAppEventListener : AppEventListenerBase
    {
        protected UserConnection GetSessionUserConnection()
        {
            return HttpContext.Current.Session["UserConnection"] as UserConnection;
        }

        public override void OnSessionStart(AppEventContext context)
        {
            base.OnSessionStart(context);
            var userConnection = GetSessionUserConnection();
            var user = userConnection.CurrentUser;

            // DO SOMETHING ON SESSION START HERE
        }
    }
}

The AppEventListenerBase class has the following methods available to override:

• OnAppStart
• OnAppEnd
• OnSessionStart
• OnSessionEnd

Note, I’ve used the class name “CustomAppEventListener”, however, you don’t need to name the class this. It can be named whatever you’d like.