[add]: threading for Kafa integration

app/api/integrations/kafka.py

@@ -11,7 +11,8 @@ class KafkaIntegration:
         'bootstrap.servers': settings.KAFKA_BROKER,
         'client.id': 'loan-service-producer',
         'acks': 'all',
-        'retries': 3
+        'retries': 3,
+        'debug': 'broker,topic,msg'
     }
 
 
@@ -31,7 +32,6 @@ class KafkaIntegration:
         """Called once for each message produced"""
         if err is not None:
             logger.error(f'Message delivery failed: {err}')
-
             raise RuntimeError(f"Message delivery failed: {err}")
         
         else:
@@ -62,7 +62,9 @@ class KafkaIntegration:
                 value=json.dumps(loan_data).encode('utf-8'),
                 callback=KafkaIntegration.delivery_report
             )
+
             producer.poll(0)
+
             logger.info(f"Loan request {request_id} queued for processing")
 
         except Exception as e: