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Building your own API with Rails

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Getting Started

Introduction to the Course The Marketplace Application Initializing the App

The API

API Structure Routes Constraints and Namespaces Versioning the API Quiz Yourself: The API

User Model

Generating the User Model Migration File Validating the User Model Unit Tests Password Hash Build Endpoints Show Users Create Users Update Users Destroy Users Test Our Resources with curl Quiz Yourself: User Model

Authenticating the Users

Stateless Session JWT Presentation Setting Up the Authentication Token Token’s Controller Create Tokens Logged User Authentication with the Token Quiz Yourself: Authenticating the Users

User's Products

Generating the Product Model Migration File Validating the Product Model Unit Tests Product's Endpoints Show Products List Products Create Products Update Products Destroy Products Feed the Database Quiz Yourself: Product Model

Building JSON

Presentation of JSON:API

Serialize Product

Serialize Associations

Theory of the Injection of Relationships

Application of the Injection of Relationships

Retrieve User’s Products

Search for Products

Quiz Yourself: Building JSON

Placing Orders

The Order Model Validating the Order Model The Placement Model Build Endpoints List Orders Show Orders Create Orders Send an Order Confirmation Email Quiz Yourself: Order and Placement Model

Improving Orders

Decrementing Product Quantity Add quantity to the Placement Model Extending the Placement Model Validate Quantity of Products Updating the Total Quiz Yourself: Improve Order Placement

Optimizations

Pagination Paginate Products List Paginate Orders List Refactoring Pagination API Caching N+1 Queries Prevention of N + 1 Requests Activation of CORS Quiz Yourself: Optimization Techniques

Wrap up

Test the Application Conclusion

Appendix

Setting Up a Development Environment

API Output

Learn how to analyze the JSON output of the API.

We'll cover the following

Analyze the JSON output

In the previous chapter, we added products to the application and built all the necessary routes. We have also associated a product with a user and restricted some of the actions of the products_controller. You should be very proud of all this work, but we still have more to do.

Analyze the JSON output

Currently, we have a JSON output that is not perfect. Let’s take a look at what our JSON output looks like. Click the “Run” button below to open a terminal.

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