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I want to show the data received in my socket event into ajax datatable

I am using socket to receive the json data from my backend. I am receiving the data in the DATA variable and want to iterate it into the ajax datatable. Here is my code.
`
socket.on('getinvoices', (data) => {
var table = $('#table1').DataTable( {
dom: 'Bfrtip',
buttons: [
'copy', 'csv', 'excel', 'pdf', 'print'
],
order: false,
ajax: {
url : "https://testdma.tech-east.com.pk/dma/invoices/getAllInvoices",
dataSrc: "doc",
order: [[0]],
},
columns: [
{ data: 'recipientName' },
{ data: 'recipientAddress' },
{ data: 'recipientPhoneNumber' },
{ data: 'recipientEmail' },
{ data: 'services[/ ].serviceName' },
{ data: 'services[/ ].servicePrice' },
{
data: null,
className: "dt-center editor-delete",
orderable: true,
"mRender" : function ( data, type, row ) {
return '<button class="btn viewbtn" value=' +data._id +'>Edit</button>';
}
},
{
data: null,
className: "dt-center editor-delete",
orderable: true,
"mRender" : function ( data, type, row ) {
return '<button class="btn viewbtn2" value=' +data._id +'>Print Invoice</button>';
}
}
],
});
The data variable on in the socket is where I am receiving my data into.
I tried putting the DATA instead of URL into the ajax datatable but it didnt worked.Kindly guide me how can i populate table with that data

I'm pretty sure to populate a jQuery DataTable with data from a socket event, you can use the ajax.reload() method to update the table's data. Here is an example of how you could do this:
// Define the table
var table = $('#table1').DataTable({
dom: 'Bfrtip',
buttons: [
'copy', 'csv', 'excel', 'pdf', 'print'
],
order: false,
columns: [
{ data: 'recipientName' },
{ data: 'recipientAddress' },
{ data: 'recipientPhoneNumber' },
{ data: 'recipientEmail' },
{ data: 'services[/ ].serviceName' },
{ data: 'services[/ ].servicePrice' },
{
data: null,
className: "dt-center editor-delete",
orderable: true,
"mRender" : function ( data, type, row ) {
return '<button class="btn viewbtn" value=' +data._id +'>Edit</button>';
}
},
{
data: null,
className: "dt-center editor-delete",
orderable: true,
"mRender" : function ( data, type, row ) {
return '<button class="btn viewbtn2" value=' +data._id +'>Print Invoice</button>';
}
}
]
});
// Handle the 'getinvoices' socket event
socket.on('getinvoices', (data) => {
// Update the table data with the data from the socket event
table.ajax.reload(null, false);
});
You can also specify the data source and other options for the table by passing an object to the ajax.reload() method.
table.ajax.reload({
url: "https://testdma.tech-east.com.pk/dma/invoices/getAllInvoices",
dataSrc: "doc",
order: [[0]],
});

Warning - DataTables warning: table id=example - Cannot reinitialise DataTable

I am trying to get data from .JSON file and filter it in realtime.
But I am getting Warnings as
DataTables warning: table id=example - Cannot reinitialise DataTable. For more information about this error, please see http://datatables.net/tn/3
As per instructions in above link I added retrieve: true, and paging: false, But still warnings are shown.
I am new for jscript and jquery so can you please help me to resolve this warning
main.js file
$(document).ready(function () {
var table = $('#example').DataTable({
retrieve: true,
paging: false,
ajax: {
url: './test.json',
dataSrc: '',
},
columns: [
{ data: 'Host' },
{ data: 'Category' },
{ data: 'Type' },
{ data: 'SSH' },
{ data: 'Status' },
{ data: 'Notes' },
],
mark: true,
dom: 'Bfrtip',
lengthMenu: [
[10, 25, 50, 100, -1],
['10 rows', '25 rows', '50 rows', '100 rows', 'Show All']
],
buttons: [
'pageLength',
{
extend: 'copyHtml5',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'excelHtml5',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'csvHtml5',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'print',
exportOptions: {
columns: ':visible'
}
},
{
extend: 'pdfHtml5',
download: 'open',
exportOptions: {
columns: ':visible'
}
},
'colvis'
],
columDefs: [{
targets: -1,
visible: false
}],
});
$('#example tfoot th').each(function () {
var title = $('#example tfoot th').eq($(this).index()).text();
$(this).html('<input type="text" placeholder="Search ' + title + '" />');
});
table.columns().eq(0).each(function (colIdx) {
$('input', table.column(colIdx).footer()).on('keyup change', function () {
table
.column(colIdx)
.search(this.value)
.draw();
});
});
});

page number not working in datatable export to pdf

I am trying to add page number in datatble pdf export, I got code from its official site after adding this code pdf button got disappearing and getting 'Uncaught ReferenceError: doc is not defined
at HTMLDocument' error in console.
$('#table2').DataTable({
dom: 'Bfrtip',
buttons: [
{
extend: 'pdfHtml5',
title: 'Data export',
filename: 'dt_custom_pdf',
pageSize: 'A4',
exportOptions: {
columns: ':visible',
search: 'applied',
order: 'applied'
},
},
doc['footer']=(function(page, pages) {
return {
columns: [
'Left part of footer',
{
alignment: 'right',
text: [
{ text: page.toString(), italics: true },
' of ',
{ text: pages.toString(), italics: true }
]
}
],
margin: [10, 0]
}
});
]
});

You did not define customize function to dataTable that why getting doc error you need to change
$('#table2').DataTable({
dom: 'Bfrtip',
buttons: [
{
extend: 'pdfHtml5',
text: 'Pdf',
filename: 'dt_custom_pdf',
pageSize: 'A4',
exportOptions: {
columns: ':visible',
search: 'applied',
order: 'applied'
},
customize: function ( doc ) {
doc['footer']=(function(page, pages) {
return {
columns: [
{
alignment: 'center',
text: [
{ text: page.toString(), italics: true },
' of ',
{ text: pages.toString(), italics: true }
]
}
],
margin: [10, 0]
}
});
}
}
]
});

Datatable does not print all my rows on scrolling

I am trying to get rows from back-end response on each scroll. I get
an AJAX response, but I can't get full row, it eats up the data
most probably the last one.
I tried with so other alternative, but it's not working at all, I tried redraw and reload in AJAX.
Here goes my js code:
var table= $('#subscriber_list').DataTable({
responsive: true,
"processing":true,
serverSide: true,
"scrollCollapse":true,
"sDom":"BifrtS",
scrollY:'35vh',
scrollCollapse: true,
paging:false,
"oScroller": {
"displayBuffer": 2,"loadingIndicator": true
},
"ajax": {"url": $('#data_table_column_list').attr("url"),"type": 'POST',"data":{'type':subscriber_type,'end_date_from':end_date_from,'end_date_to':end_date_to}},
"columns": JSON.parse($('#data_table_column_list').val().replace(/\'/g, '"')),
"columnDefs": [
{ "orderable": false, "targets": 2 }
],
buttons: [
{
extend: 'excelHtml5',
text: 'Export selected',
exportOptions: {
columns: ':visible:not(.not-exported)',
modifier: {
selected: true
}
},
title: 'Data export'
},
{
extend: 'excelHtml5',
text: 'Export All',
exportOptions: {
columns: ':visible:not(.not-exported)'
},
title: 'Data export'
}
]
});

You need one or both of the following depending on how you want the table to work.
Right now, it's getting cut off because the default in Datatables is 10 rows. You have paging set to false, so any results after the 10th are now shown.
Either switch this: paging:false,
to: paging:true,
That'll give you multiple pages of results with 10 on each page.
You can also add "pageLength": 50 or some other value if you want more than 10 rows per page.

here i am using same data table from multiple radio button switch, on switching i get warning from data table can't be re-initialised , since i know when i use table.destroy(); it destroy's all the object's created at while i switch the options, but have alternate to use it , what to do now ???? , running out of idea
i was referring this actually
https://datatables.net/manual/tech-notes/3
$('.subscriber_type').on('change',function (e){
var table = $('#subscriber_list').DataTable();
subscriber_data_table($(this).val(),$('#datepicker_from').val(),$('#datepicker_to').val());
});
subscriber_data_table("all",null,null);
function subscriber_data_table(subscriber_type,end_date_from,end_date_to) {
$('#subscriber_list').DataTable({
responsive: true,
"processing": true,
serverSide: true,
paging:true,
"pageLength":50,
"drawCallback": function( settings ) {
console.log( 'hit began' );
},
"sScrollY": "379",
"sDom":"BifrtS",
"oScroller": {
"displayBuffer": 2,"loadingIndicator": true
},
"ajax": {"url": $('#data_table_column_list').attr("url"),"type": 'POST',"data":{'type':subscriber_type,'end_date_from':end_date_from,'end_date_to':end_date_to}},
"columns": JSON.parse($('#data_table_column_list').val().replace(/\'/g, '"')),
"columnDefs": [
{ "orderable": false, "targets": 2 }
],
buttons: [
{
extend: 'excelHtml5',
text: 'Export selected',
exportOptions: {
columns: ':visible:not(.not-exported)',
modifier: {
selected: true
}
},
title: 'Data export'
},
{
extend: 'excelHtml5',
text: 'Export All',
exportOptions: {
columns: ':visible:not(.not-exported)'
},
title: 'Data export'
}
]
});
}

Bootstrap DataTable exclude certain visible columns from export

I can export dynamically selected visible columns to pdf with the following. However I want to be able to also exclude certain visible columns (button columns) too. How do I do this?
buttons: [{
extend: 'csv',
orientation: 'landscape',
pageSize: 'LEGAL',
text: 'Export as CSV',
exportOptions: {
columns: ':visible'
}
}, {
extend: 'pdfHtml5',
orientation: 'landscape',
pageSize: 'LEGAL',
text: 'Export as PDF',
exportOptions: {
columns: ':visible'
}, {
extend: 'colvis',
text: 'Show/Hide Columns'
}]

The key was to add a method to the columns property in the export options that filters if the column is visible and if the column is not part of the columns you do not want to export. The idx variable is the column index.
Working example here: https://jsfiddle.net/L06yu0vz/1/
$(document).ready(function() {
// Do not export these columns
var hideFromExport = [0,1,2];
var table = $('#example').DataTable({
dom: 'Bfrtip',
buttons: [{
extend: 'copyHtml5',
exportOptions: {
columns: function ( idx, data, node ) {
var isVisible = table.column( idx ).visible();
var isNotForExport = $.inArray( idx, hideFromExport ) !== -1;
return isVisible && !isNotForExport ? true : false;
}
}
}, 'colvis']
});
});