customers_controller.rb

class CustomersController < ApplicationController

	def index
		customers = Customer.all

		render json: customers.as_json(only: [:id, :name, :registered_at, :address, :city, :state, :postal_code, :phone, :movies_checked_out_count]), status: :ok
	end

	def show
		customer = Customer.find_by(id: params[:id])

		if customer.nil?
			render json: {errors: {id: ["No customer like that found, #{params[:id]}"]}}, status: :not_found
		else
			render json: customer.as_json(only: [:name, :registered_at, :address, :city, :state, :postal_code, :phone]), status: :ok
		end
	end

	def create
		customer = Customer.new(customer_params)

		if customer.save
			#do something
			render json: { id: customer.id}, status: :created
		else
			render json: { errors: customer.errors.messages }, status: :bad_request
		end
	end

	private
	def customer_params
		params.require(:customer).permit(:name, :registered_at, :address, :city, :state, :postal_code, :phone)
	end

end