Frappe Version 5 Client Side API

stock_reco.js

// button click "Get Items"
frappe.ui.form.on("Stock Reconciliation", "get_items", function(frm) {
  
  // prompt user for warehouse
	frappe.prompt({label:"Warehouse", fieldtype:"Link", options:"Warehouse", reqd: 1},
		function(data) {
		  
		  // get latest balance and valuation rate
			frappe.call({
				method:"erpnext.stock.doctype.stock_reconciliation.stock_reconciliation.get_items",
				args: {warehouse: data.warehouse},
				callback: function(r) {
				  
				  // set the values in the item table
					var items = [];
					frm.clear_table("items");
					for(var i=0; i< r.message.length; i++) {
						var d = frm.add_child("items");
						$.extend(d, r.message[i]);
					}
					frm.refresh_field("items");
				}
			});
		}
	);
});