Cierre del curso

What do you learn when creating an API with Rails?

Creating an API from scratch with Rails involves not only the technical knowledge of how to structure and develop it, but also the incorporation of programming best practices. In this course, you were not only introduced to the basic creation of an API, but also adopted tools and methodologies that encourage solid, quality development.

How to implement TDD in an API?

Test-Driven Development (TDD) is a methodology that guides development through testing. By employing TDD, you can anticipate scenarios and possible failures before they occur in the production environment.

• Benefits of TDD:
  • Helps keep code clean and focused on requirements.
  • Reduces the number of bugs that occur.
  • Facilitates refactoring and code scalability.

What role do RSpec and FactoryBot play?

These are vital libraries for Ruby on Rails development.

• RSpec: It is a test environment that allows to write readable and maintainable tests. Styled in natural language, it makes it easy to understand what each test does.

• FactoryBot: Tool used for test configuration, it helps to build objects that meet the conditions and expectations of your tests, saving time and minimizing errors.

How to diagnose and solve the n+1 query problem?

The n+1 query problem can significantly degrade the performance of your applications by generating too many database queries. This course addresses techniques to:

• Identify scenarios vulnerable to this problem.
• Use includes and joins in ActiveRecord to optimize queries.

These solutions allow you to improve the efficiency and response time of your API.

What advanced features does Rails offer for APIs?

Rails not only provides a basic framework for creating APIs; it also offers advanced features to improve their performance and adaptability.

How do I use caching in Rails?

Caching is a key technique to improve the performance of an API by reducing the load on the database and improving response time. You learned how to:

• Implement different caching strategies.
• Use fragment caching to minimize processing times.

What are background jobs in Rails?

Background jobs allow you to run processes or tasks that do not require user intervention immediately, separating them from the usual HTTP request lifecycle. With Rails, you can:

• Implement background jobs using ActiveJob.
• Configure services such as Sidekiq or Resque to manage these job queues efficiently.

What is the role of ActionMailer?

ActionMailer in Rails is a powerful tool for sending emails. With a simple configuration, you can create complex notification actions and direct communication with your users.

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Congratulations on completing this learning journey! You have acquired a broad set of skills to develop robust and efficient APIs with Rails. Keep practicing and applying what you've learned, the path to Rails mastery is exciting and full of opportunities.