04_Gerando_Controllers.md

Gerando nossos Models

Rode no console:

docker-compose run --rm web rails g model Contact name:string email:string phone:string description:text user:references

Adicione ao seu Model Contact:

validates :name, :user, presence: true

Adicione ao seu Model User:

has_many :contacts, dependent: :destroy

Gerando nossos Controllers Rode no console:

rails g controller api/v1/contacts

Coloque no controller gerado:

class Api::V1::ContactsController < Api::V1::ApiController
 
 before_action :set_contact, only: [:show, :update, :destroy]
 
 before_action :require_authorization!, only: [:show, :update, :destroy]
 
 # GET /api/v1/contacts
 
 def index
 
   @contacts = current_user.contacts
 
   render json: @contacts
 
 end
 
 # GET /api/v1/contacts/1
 
 def show
 
   render json: @contact
 
 end
 
 # POST /api/v1/contacts
 
 def create
 
   @contact = Contact.new(contact_params.merge(user: current_user))
 
   if @contact.save
 
     render json: @contact, status: :created
 
   else
 
     render json: @contact.errors, status: :unprocessable_entity
 
   end
 
 end
 
 # PATCH/PUT /api/v1/contacts/1
 
 def update
 
   if @contact.update(contact_params)
 
     render json: @contact
 
   else
 
     render json: @contact.errors, status: :unprocessable_entity
 
   end
 
 end
 
 # DELETE /api/v1/contacts/1
 
 def destroy
 
   @contact.destroy
 
 end
 
 private
 
   # Use callbacks to share common setup or constraints between actions.
 
   def set_contact
 
     @contact = Contact.find(params[:id])
 
   end
 
   # Only allow a trusted parameter "white list" through.
 
   def contact_params
 
     params.require(:contact).permit(:name, :email, :phone, :description)
 
   end
 
   def require_authorization!
 
     unless current_user == @contact.user
 
       render json: {}, status: :forbidden
 
     end
 
   end
end

Ajustando as Rotas
Atualize o seu arquivo routes.rb colocando:

  namespace :api do
    namespace :v1 do
      resources :contacts
    end
  end