Api Rails ¨6

API on Rails 6
Table of Contents
Before
	Foreword
	About the author
	Copyright and license
	Thanks
Introduction
	Conventions on this book
	Development environments
		Text editors and Terminal
		Browsers
		Package manager
		Git
		Ruby
	Initializing the project
	Versioning
	Conclusion
The API
	Planning the application
	Setting the API
		Routes, Constraints and Namespaces
	Api versioning
	Conclusion
Presenting users
	User model
		Generation of the User model
		Password hash
	Build users
		Test our resource with cURL
		Create users
		Update users
		Delete the user
	Conclusion
Authenticating user
	Stateless session
		JWT presentation
		Setting up the authentication token
		Token’s controller
	Logged user
	Authentication with the token
		Authorize actions
	Conclusion
User’s products
	The product model
		The foundations of the product
		Product validations
	Products endpoints
		Show action for products
		Products list
		Creating products
		Updating products
		Destroying products
	Feed the database
	Conclusion
Building JSON
	Presentation of JSON:API
	Serialize user
	Serialize products
		Serialize associations
	Theory of the injection of relationships
		Integrate into a meta attribute
		Incorporate the object into the attribute
		Incorporate the relationships into `include
	Application of the injection of relationships
		Retrieve user’s products
	Search for products
		The keyword by
		By price
		Sort by creation date
	Conclusion
Placing Orders
	Modeling order
		Orders and Products
	Expose the user model
		Render a single order
		Placing and order
	Send order confirmation email
	Conclusion
Improving orders
	Decrementing product quantity
		Extending the Placement model
	Validate quantity of products
	Updating the total
	Conclusion
Optimizations
	Pagination
		Products
		Orders list
		Refactoring pagination
	API Caching
	N+1 Queries
		Prevention of N + 1 requests
	Activation of CORS
	Conclusion