Rails

rails-api-template

A template for starting projects with rails-api. Includes authentication.

At the beginning of each cohort, update the versions in Gemfile.

Dependencies

• rails-api
• rails
• active_model_serializers
• ruby
• postgres

Installation

Download Template:

1. Download this template.
2. Unzip and rename the template directory (unzip ~/Downloads/rails-api-template-master.zip)
3. Move into the new project and git init.

Customize Template:

1. Empty README.md and fill with your own content.
2. Rename your app module in config/application.rb (change RailsApiTemplate).
3. Rename your project database in config/database.yml (change 'rails-api-template').

Setup Environment:

1. Install dependencies with bundle install.
   • If you get a nokogiri error run gem install nokogiri -v '1.8.4' then run bundle config build.nokogiri --use-system-libraries && bundle install
2. git add and git commit your changes.

Setup your database:

- bin/rails db:drop (if it already exists)
- bin/rails db:create
- bin/rails db:migrate
- bin/rails db:seed
- bin/rails db:examples

Note: Remember to follow the same commands when setting up your deployed database!

Run your server!

1. Run the API server with bin/rails server or bundle exec rails server.

Structure

This template follows the standard project structure in Rails.

User authentication is built-in.

Tasks

Developers should run these often!

• bin/rails routes lists the endpoints available in your API.
• bin/rails console opens a REPL that pre-loads the API.
• bin/rails db opens your database client and loads the correct database.
• bin/rails server starts the API.

API

Use this as the basis for your own API documentation. Add a new third-level heading for your custom entities, and follow the pattern provided for the built-in user authentication documentation.

Authentication

Verb	URI Pattern	Controller#Action
POST	/sign-up	users#signup
POST	/sign-in	users#signin
PATCH	/change-password	users#changepw
DELETE	/sign-out	users#signout

POST /sign-up

Request:

curl http://localhost:8000/sign-up \
  --include \
  --request POST \
  --header "Content-Type: application/json" \
  --data '{
    "credentials": {
      "email": "'"${EMAIL}"'",
      "password": "'"${PASSWORD}"'",
      "password_confirmation": "'"${PASSWORD}"'"
    }
  }'

EMAIL=ava@bob.com PASSWORD=hannah curl-scripts/auth/sign-up.sh

Response:

HTTP/1.1 201 Created
Content-Type: application/json; charset=utf-8

{
  "user": {
    "id": 1,
    "email": "ava@bob.com"
  }
}

POST /sign-in

Request:

curl http://localhost:8000/sign-in \
  --include \
  --request POST \
  --header "Content-Type: application/json" \
  --data '{
    "credentials": {
      "email": "'"${EMAIL}"'",
      "password": "'"${PASSWORD}"'"
    }
  }'

EMAIL=ava@bob.com PASSWORD=hannah curl-scripts/auth/sign-in.sh

Response:

HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8

{
  "user": {
    "id": 1,
    "email": "ava@bob.com",
    "token": "BAhJIiVlZDIwZTMzMzQzODg5NTBmYjZlNjRlZDZlNzYxYzU2ZAY6BkVG--7e7f77f974edcf5e4887b56918f34cd9fe293b9f"
  }
}

PATCH /change-password

Request:

curl --include --request PATCH "http://localhost:8000/change-password" \
  --header "Authorization: Token token=$TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
    "passwords": {
      "old": "'"${OLDPW}"'",
      "new": "'"${NEWPW}"'"
    }
  }'

OLDPW='hannah' NEWPW='elle' TOKEN='BAhJIiVlZDIwZTMzMzQzODg5NTBmYjZlNjRlZDZlNzYxYzU2ZAY6BkVG--7e7f77f974edcf5e4887b56918f34cd9fe293b9f' sh curl-scripts/auth/change-password.sh

Response:

HTTP/1.1 204 No Content

DELETE /sign-out

Request:

curl http://localhost:8000/sign-out \
  --include \
  --request DELETE \
  --header "Authorization: Token token=$TOKEN"

TOKEN='BAhJIiVlZDIwZTMzMzQzODg5NTBmYjZlNjRlZDZlNzYxYzU2ZAY6BkVG--7e7f77f974edcf5e4887b56918f34cd9fe293b9f' sh curl-scripts/auth/sign-out.sh

Response:

HTTP/1.1 204 No Content

Reset Database without dropping

This is not a task developers should run often, but it is sometimes necessary.

locally

bin/rails db:migrate VERSION=0
bin/rails db:migrate db:seed db:examples

heroku

heroku run rails db:migrate VERSION=0
heroku run rails db:migrate db:seed db:examples

Additional Resources

• rails-heroku-setup-guide
• http://guides.rubyonrails.org/api_app.html
• https://blog.codeship.com/building-a-json-api-with-rails-5/

License

1. All content is licensed under a CC­BY­NC­SA 4.0 license.
2. All software code is licensed under GNU GPLv3. For commercial use or alternative licensing, please contact legal@ga.co.