rails hide field in json

1respond_to do |format|
2  format.json { render :json => @user, :except=> [:ip] } # or without format block: @user.to_json(:except => :ip)
3end
4

1class User < ActiveRecord::Base
2  def to_json(options={})
3    options[:except] ||= [:ip]
4    super(options)
5  end
6end
7

1class User < ApplicationRecord
2  def as_json(options={})
3    options[:except] ||= [:ip]
4    super(options)
5  end
6end
7