Delve into creating, optimizing, and securing a Rails API from scratch. Gain insights into building a full-fledged, efficient Rails API, ready for immediate use.

rails.tar.gz

Routes changes

validating_the_user_model

unit_tests

show_user

migration_file

create_tokens

feed_the_database

presentation_of_JSON_API

validating_the_order_model

list_orders

decrementing_product_quantity

extending_the_placement_model

feed_the_database-2

feed_the_database-3

Setting Up the Authentication Token

validating_the_product_model

unit_tests_for_order_model

the_placement_model

decrementing_product_quantity-2

activation_of_CORS

This course is a comprehensive tutorial that will teach you the best way to build your next API with Rails. You’ll learn to create a Rails API from scratch and to optimize and secure a Rails API. By the end of this course, you’ll have a full-fledged Rails API ready to be used.

Building your own API with Rails

It’s time to make endpoints for the `api`. **Endpoints** are the touchpoints for requests and responses through an API. In an API, the database is not directly exposed to the user. The user can only access data through specific requests using these endpoints.

We will discuss `controllers` and their functionality later in this lesson. For now, let's look at the steps to build an endpoint:
1. Generate the `users` controller.
2. Define the required actions.
3. Add the corresponding tests code.
4. Add the actions to `routes.rb`.
# Generate the `users` controller
We have already created the `User` model which represents our users’ data. Now we need to create a `users` controller. A **controller** is the logical center of our application. It is responsible for making sense of the request and producing the appropriate output.

To respect the viewing of our API, we will cut our application using
**modules**. We will generate the controllers for the `api` using the r`ails generate controller` command.

The syntax is as follows:
```
$ rails generate controller api::v1::users
```

Generate the `users` controller for the application using the command in the terminal below.

We will learn how to build endpoints so that the API can access users' data.

Build Endpoints

Getting Started

The API

User Model

Authenticating the Users

User's Products

Building JSON

Placing Orders

Improving Orders

Optimizations

Wrap up

Appendix

Build Endpoints