added methods to model controller

app/controllers/movies_controller.rb

@@ -1,10 +1,27 @@
 class MoviesController < ApplicationController
   def index
+    movies = Movie.all
+    render json: movies.as_json(only:[:id,:title,:release_date])
   end
 
   def show
+    @movie = Movie.find_by(id: params[:id])
+
+  if @movie
+
+    render json: @movie.as_json(only:[:title,:overview,:release_date,:inventory,:methods =>[:available_inventory]]),status: :ok
+  else
+    render json: {ok: false,errors:"movie not found"}, status: :not_found
+  end
   end
 
   def create
+    movie = Movie.create(movies_params)
+  if movie.valid?
+  render json: {id: movie.id}, status: :ok
+else
+  render json: {ok: false,errors:movie.errors}, status: :bad_request
+end
+
   end
 end