custom validation in request laravel incentive unique validation code example
Example 1: email validation in laravel
'email' => 'required|email|unique:users,email',
//@sujay
Example 2: 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',