app.engine('hbs', exphbs({
    defaultLayout: 'main',
    extname: 'hbs',
    helpers:{
        jenkinsid: function(value){
            //Here I want to run a query to get jenkins id corresponding to value and return.
            //Or I can post req and get data.
        );
        }
    }
}));

Task is to fetch corresponding JenkinsID to value passed in helper function and return it to hbs file