How to pass massive data from flask to template?

I would use a library called sqlalchemy-datatables which is a bit old now but does it work.

The code should look like this:

Flask Code

from datatables import ColumnDT, DataTables@app.route('/index', methods=['GET'])def index():  """  Code which renders the index page  """  return render_template('index.html')@app.route('/data', methods=['GET'])def data():  """  Returns data for the index page.  GET:        params:            Please learn about the other parameters here:                https://datatables.net/manual/server-side#Sent-parameters        responses:            Please learn about the response parameters here:                https://datatables.net/manual/server-side#Returned-data  """  columns = [    ColumnDT(       asset.asset_id,       mData="ID"      ),    ColumnDT(       asset.asset_name,       mData="Name"     )              ]  query = db.session.query().select_from(asset)  params = request.args.to_dict()  rowTable = DataTables(params, query, columns)  return jsonify(rowTable.output_result())

HTML/Jquery Code

<table class="table table-hover table-sm table-striped" id="asset_table">    <thead class="thead-dark">        <tr>            <th>ID</th>            <th>Name</th>        </tr>    </thead>    <tbody></tbody>    </table><script>$(document).ready(function () {            $('#asset_table').DataTable({                processing: true,                serverSide: true,                ajax: "{{ url_for('data')}}",                dom: 'Bflrtip',                columns: [                        { "data": "ID" },                        { "data": "Name" },]            });    });</script>

Cheers!