Phoenix liveview11/11/2022 In this tutorial, Kelsey Leftwich, Senior Developer at Headway will teach you how to make client-side events communicated to the server-side modules using client hooks. STEP 1 - Add a Presence Module First I need to define a presence module and make sure its started in the application. Settings View Source (Phoenix LiveView v0.17.12) A collection of helpers to be imported into your views. The realtime nature of LiveView makes it easy to display the current online users. In this tutorial, I will combine the presence feature with Phoenix LiveView. However, there are situations where client-side implementation results in a better user experience. Phoenix makes it easy to build that with the built in Phoenix Presence. The LiveView programming model is declarative: instead of saying 'once event X happens, change Y on the page', events in LiveView are regular messages which may cause changes to its state. LiveView powered applications are stateful on the server with bidirectional communication via WebSockets, offering a vastly simplified programming model compared to JavaScript alternatives. Phoenix.LiveView behaviour LiveView provides rich, real-time user experiences with server-rendered HTML. Then it will take our params which we can ignore since we won’t need them, the session, and the socket. Let’s define our function and pattern match on :requireauthenticateduser. #PHOENIX LIVEVIEW FREE#Now let’s walk through the lifecycle of a LiveView in this video from our free course. Phoenix LiveView is an exciting new library which enables rich, real-time user experiences with server-rendered HTML. To handle this we’ll use the function, which lets us declare a callback that will be invoked when our LiveView mounts. Phoenix LiveView server-side rendering is very fast. The Lifecycle of a Phoenix LiveView AugMike Clark In the previous video we built a basic Phoenix LiveView from scratch to see how to react to user events. Interactions like drag and drop are either better handled by the client or can only be handled by the client.
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