Speeding Up Rendering Rails Pages with render_async

Rails controllers can face issues such as bloated actions and slow page loading times, especially as code and data increase. Adding new code can also result in blocking actions if external services fail, disrupting user experience. Semaphore addressed these challenges by splitting controller actions into smaller, asynchronous actions using the render_async gem. This gem loads content asynchronously via AJAX calls, preventing external service failures from breaking pages. By implementing render_async, the MoviesController show action was simplified, improving testability and load speed, while movie rating markup was separated into a partial to prevent blocking by external services. This approach maintains page usability even if external data like IMDB ratings are unavailable. Semaphore also offers a CI feature, Semaphore Boosters, to enhance continuous integration speed by parallelizing test suites, reflecting its commitment to fast and efficient development processes.