November 09, 2023

Exploring Phoenix LiveView's Async Operations

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Exploring Phoenix LiveView's Async Operations

Source: fly.io

Concurrency Phoenix Framework Phoenix LiveView

The article highlights the capabilities of Phoenix LiveView's async operations feature introduced in version 0.20, as discussed by Mark Ericksen. This feature offers a structured way to execute asynchronous tasks in separate processes while maintaining a responsive and uncrashed LiveView component. With this addition, it is possible to start, track, and manage asynchronous tasks, handle various states like loading, successful completion, errors, and process crashes, and even cancel running tasks. The feature simplifies many complexities associated with asynchronous operations, such as linking processes, trapping exits, and cancelling tasks. The author outlines a practical scenario and code examples to illustrate real-time message streaming rather than just showing final results. Ericksen demonstrates how to use the async assigns feature in contexts where you're not merely interested in the results of a long-running task but the ongoing side-effects, which is not the typical use case the feature primarily addresses, yet it's flexible enough to accommodate. LiveView's new tools have proven convenient and robust enough to handle a wide range of scenarios, including projects that deviate from conventional asynchronous handling.

Ensuring Unique Data Entries in Phoenix Applications

George Arrowsmith explains in his article "Foolproof uniqueness validations in Phoenix with Ecto" how to validate the uniqueness of data in a Phoenix app using the Ecto.Changeset module. He discusses the limitations of the validates_uniqueness_of validator in Rails and introduces the use of unsafe_validate_unique and unique_constraint functions in Ecto for a more secure and user-friendly validation process.

Nov 08, 2023

Creation of Disk Cache Plugin for Req HTTP Client in Elixir

Thibaut Barrère shares a guide on implementing a disk cache plugin for Elixir's Req HTTP client. The plugin allows for automatic caching of API responses, improving speed and efficiency for data-processing scripts.

Sep 09, 2022

Release of Bandit and Thousand Island 1.0.0

Mat Trudel announces that Bandit and Thousand Island are both reaching version 1.0.0 today, after almost four years of development. Mat reflects on the progress made and highlights exciting future plans, thanking the community for their contributions and support.

Oct 19, 2023