This is an example:
Client Side
-- Message, Type and Duration
exports['Roda_Notifications']:showNotify('Hey, You have a error in this notification :(', 'error', 4000)
Server Side
-- Source, Message, Type and Duration
TriggerClientEvent('Roda_Notifications:showNotification', source, 'You bought a weapon!', 'success', 3000)
Types
-- normal
-- success
-- error
-- warn
-- info
-- announce
-- twt