updated code by aakash

controllers/report_controller.py

@@ -1,10 +1,9 @@
-from flask import Blueprint, render_template, request, jsonify
+from flask import Blueprint, render_template, request, jsonify,send_file
 from flask_login import login_required, current_user
 
 from model.Report import ReportHelper
 from model.Log import LogHelper
 
-
 report_bp = Blueprint("report", __name__)
 
 
@@ -46,8 +45,10 @@ def contractor_report(contractor_id):
 
 # ---------------- Contractor Download Report by contractor id ----------------
 @report_bp.route('/download_report/<int:contractor_id>')
-@login_required
 def download_report(contractor_id):
+    output_file, error = ReportHelper.create_contractor_report(contractor_id)
+    
+    if error:
+        return error, 404
 
-    return ReportHelper().download_report(contractor_id=contractor_id)
-  
+    return send_file(output_file, as_attachment=True)