...But may I ask if its necessary to get the SSL support?certificate setup? Kindly let me know please.
it's a question of network security. It depends on the seriousness of your intentions to do business.
You can ability do not use ssl, but is it correct in relation to your customers? They will give you some secret info, for ex. credit card details, and somebody will see it in the middle of connection. I think it's no good.
We suggest to read more articles about ssl to decide.
Best regards