//ajax call using post method    <meta name="csrf-token" content="{{ csrf_token() }}">  // in master blade    in blade where ajax call is needed    $.ajax({                   url:"/billfinalsave",                              contentType: 'application/json',                data: jsonString,//JSON.stringify( { "first-name": 'affaa', "last-name": 'ertyu' } ),                      headers: {'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')},                               method:'post',                   success:function (resp123) {                     debugger;                         console.log("resp:"+resp123['bill_id']);                         console.log("product_item:"+resp123['product_item'][0].product_id);                         console.log("Quantity:"+resp123['product_item'][0].quantity);      ...