- Through EventSource (Client side) from browser
- Instant update without sending any request on browser
- Not realible if to get every comments
- Rely on client network, might miss out any entry if network is disconnected
* For instant processing, eg. Instant update on browser to check on their comments.
- Support multiple platform (javascript, php)
- Sending request manually
- Realible to get every comments
- Not needed to rely on client network
* For server processing, eg. we can have sceduler to submit request to retrieve comments and process the data at the back.