Finish user signup

app/controllers/users_controller.rb

+class UsersController < ApplicationController
+  
+  def show 
+    @user = User.find(params[:id])
+  end
+  
+  def new
+    @user = User.new
+  end
+  
+  def create
+    @user = User.new(user_params)
+    if @user.save
+      flash[:success] = "Welcome to the Sample App!"
+      redirect_to @user
+    else
+        render 'new'
+    end
+  end
+
+  private 
+
+  def user_params
+    params.require(:user).permit(:name, :email, :password,
+                                  :password_confirmation)
+  end
+end