Below is the code I use in inserting into the db however when the name of a group which is unique is entered I get a unique key violation in the logs
override def create(groups: GroupEntity): Future[GroupEntity] = db.run{groupsTableQuery returning groupsTableQuery += groups}
Thanks for the update however I found a simpler way to solve the problem and this was solved in my route. below is the solution
val saved : Future[GroupEntity] = groupRepositoryImpl.create(group)
onComplete(saved){
case Success(value) => complete(saved.map(_.toJson))
case Failure(ex) => complete((InternalServerError, s"An error occurred: ${ex.getMessage}"))}
result => An error occurred: ERROR: duplicate key value violates unique constraint "groups_name_key_name " Detail: Key (groups_name)=(Test Shop) already exists.