Access WebAppication Config Values in SharePoint Timer Job

Hi All,

In a below post , i would like to explain how we can access Share Point Web Application Configuration (web.config) file from Custom Timer Job .
In General scenario accessing the Web.config values is straight forward as it is running under W3WP.exe But as SharePoint Timer Job runs in OWSTimer.exe Context , we cannot access directly.
As the context of both are different so we have to use WebConfigurationManager to get the specific web application configuration .

Generally TimerJob logic goes inside Execute() method , we are going to access web.config values here.

Execute() Method:

using System.Web.Configuration;
using System.Configuration;

public override void Execute(Guid targetInstanceId)
        {
            try
            {
                SPWebApplication webapplication = this.Parent as SPWebApplication;
                string siteurl = webapplication.Sites[1].Url;              
                Configuration config = WebConfigurationManager.OpenWebConfiguration("/",                      webapplication.Name);
                if (!string.IsNullOrEmpty(siteurl))
                {
                    Method(siteurl, config);
                }
            }
            catch (Exception ex)
            {
                //Exception
            }
        }

 public void Method(string siteUrl, Configuration config)
        {
            try
            {
                using (SPSite oSite = new SPSite(siteUrl))
                {
                    using (SPWeb oWeb = oSite.OpenWeb())
                    {
                      string fromEmailId = config.AppSettings.Settings["XXX"].Value;
                    }
                }
            }
           catch (Exception ex)
            {
                //Exception
            }
       }

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