Vietnam Details

Field	Meaning	Type	Required
app_id	Your Merchant ID	String	True
trade_type	Trade code, see below	String	True
order_sn	Order number, must be unique	String	True
money	This field needs to multiply 100 and remove the float part. eg. you need to receive 50.5, this field should be 5050	Integer	True
notify_url	When this order is paid, a notify message will be sent to your server, leave the url here	String	True
ip	Your client's ip address, if you don't have, use 0.0.0.0 instead	String	False
remark	If you upload this field, it will be send back to you in the callback paramters	String	False
sign	md5_hash, refer to: Signature	String	True

trade_type fields: