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The article explores the new async assigns feature in Phoenix LiveView by comparing it to previous methods of linking processes for asynchronous operations. It details the advantages of async assigns for enhancing user experience, offering insights into how these can be utilized for a variety of use cases, including those that deviate from fetching a final result, such as continuous data streams or focusing on side-effects.
Main Points
Asynchronous Processes Enhance UI
LiveView now allows launching asynchronous processes that do not block the user interface, enhancing real-time interactivity.
Versatility of Async Assigns
Async assigns in LiveView are versatile enough to handle loading states, errors, task cancellations, and more, streamlining the development of reactive applications.
Insights
Async assigns in Phoenix LiveView greatly enhance user experience by enabling asynchronous processes.
With LiveView v0.20, new async operation features were added, providing new building blocks for LiveView to execute work in a separate but linked process. This facilitates smoother user interactions by keeping the UI unblocked while fetching data or interacting with external services in the background.
Async assigns support a variety of use cases beyond the traditional final result fetching.
The new feature is designed to improve user interfaces by fetching data asynchronously, but it’s also flexible enough for situations where the focus is on ongoing messages rather than a final result, such as real-time streams of messages or side-effects that matter more than the complete output.