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Rails APIを高速に立ち上げる

ハッカソンで高速にAPIサーバーを立ち上げるためのメモです．

Rails API 立ち上げ

1 プロジェクト作成

$ rails new rails_api --api --skip-bundle
$ bundle install

2 create db

$ rails generate scaffold User name:string
$ rails db:create
$ rails db:migrate

3 routing設定

  • route.rb
Rails.application.routes.draw do
  # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
  scope :api, defaults: { format: :json } do
    resources :users
  end
end

4 access! localhost:3000/api/users

post

% curl -X POST -H "Content-Type: application/json" -d '{"name": "hoge"}' http://localhost:3000/api/users

get

% curl http://localhost:3000/api/users

Heroku Deploy

1 heroku create heat-monitor

2 sqlite3をdevelopment, testに移動し，productionにpgを追加． herokuはpostgresqlを使うので， production環境ではpostgresqlに変更する．

group :production do
  gem 'pg'
end

roup :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
  gem 'sqlite3', '~> 1.4'
end

3 bundle install % bundle install --without production

4 database.ymlを変更

production:
  <<: *default
#  database: db/production.sqlite3
  adapter: postgresql
  encoding: unicode
  pool: 5

5 コミット git add -A & git commit -m "first commit"

6 herokuにpush git push heroku master

7 heroku環境でmigrate heroku run rails db:migrate

8 access!(4とほぼ同じ)

参考サイト