Define and document CRUD endpoints for expenses

app/controllers/expenses_controller.rb

@@ -9,11 +9,21 @@ class ExpensesController < ApplicationController
     render json: Expense.all.order(pricing_type: :asc, amount: :desc).as_json(only: %i[id name amount pricing_type])
   end
 
+  def create
+    Expense.create!(expense_params)
+    render json: {}, status: :created
+  end
+
   def update
     Expense.find(params[:id]).update!(expense_params)
     render json: {}, status: :ok
   end
 
+  def destroy
+    Expense.find(params[:id]).destroy!
+    render json: {}, status: :ok
+  end
+
   private
 
   def expense_params

config/routes.rb

@@ -27,7 +27,7 @@ Rails.application.routes.draw do
     resources :guests, only: %i[index create update destroy] do
       post :bulk_update, on: :collection
     end
-    resources :expenses, only: %i[index update] do
+    resources :expenses, only: %i[index create update destroy] do
       get :summary, on: :collection
     end
     resources :tables_arrangements, only: %i[index show]

spec/requests/expenses_spec.rb

@@ -16,9 +16,7 @@ RSpec.describe 'expenses', type: :request do
                  required: %i[id name amount pricing_type],
                  properties: {
                    id: { type: :string, format: :uuid },
-                   name: { type: :string },
-                   amount: { type: :number },
-                   pricing_type: { type: :string, enum: Expense.pricing_types.keys }
+                   **Swagger::Schema::EXPENSE
                  }
                }
 
@@ -26,10 +24,31 @@ RSpec.describe 'expenses', type: :request do
       end
       regular_api_responses
     end
+
+    post 'create expense' do
+      tags 'Expenses'
+      consumes 'application/json'
+      produces 'application/json'
+      parameter Swagger::Schema::SLUG
+      parameter name: :body, in: :body, schema: {
+        type: :object,
+        required: %i[expense],
+        properties: {
+          expense: {
+            type: :object,
+            required: %i[name amount pricing_type],
+            properties: Swagger::Schema::EXPENSE
+          }
+        }
+      }
+
+      response_empty_201
+      response_422
+      regular_api_responses
+    end
   end
 
   path '/{slug}/expenses/{id}' do
-
     patch('update expense') do
       tags 'Expenses'
       consumes 'application/json'
@@ -38,11 +57,7 @@ RSpec.describe 'expenses', type: :request do
       parameter name: 'id', in: :path, type: :string, format: :uuid, description: 'id'
       parameter name: :body, in: :body, schema: {
         type: :object,
-        properties: {
-          name: { type: :string },
-          amount: { type: :number, minimum: 0 },
-          pricing_type: { type: :string, enum: Expense.pricing_types.keys }
-        }
+        properties: Swagger::Schema::EXPENSE
       }
 
       response_empty_200
@@ -50,5 +65,15 @@ RSpec.describe 'expenses', type: :request do
       response_404
       regular_api_responses
     end
+
+    delete('delete expense') do
+      tags 'Expenses'
+      produces 'application/json'
+      parameter Swagger::Schema::SLUG
+      parameter Swagger::Schema::ID
+      response_empty_200
+      response_404
+      regular_api_responses
+    end
   end
 end

spec/requests/schemas.rb

@@ -23,6 +23,12 @@ module Swagger
       color: { type: :string, pattern: '^#(?:[0-9a-fA-F]{3}){1,2}$' }
     }
 
+    EXPENSE = {
+      name: { type: :string },
+      amount: { type: :number, minimum: 0 },
+      pricing_type: { type: :string, enum: Expense.pricing_types.keys }
+    }
+
     SLUG = {
       name: 'slug',
       in: :path,