Answers for "custom validation in request laravel incentive unique validation"

email validation in laravel

'email' => 'required|email|unique:users,email',
//@sujay

laravel unique validation

unique:table,column,except,idColumn

############## Example : ################

############### For Updating  
//rules
'email' => 'unique:users,email_address,' . $userId,

############### For Creating 
//rules
'email' => 'unique:users,email_address',