Creating a Local-First Offline-Enabled LiveView PWA with Tony Dang

Today in the Creator’s Lab, Tony Dang joins Elixir Wizards Sundi Myint and Owen Bickford to break down his journey of creating a local-first, offline-ready to-do app using Phoenix LiveView, Svelte, and CRDTs (Conflict-free Replicated Data Types). Tony explains why offline functionality matters and how this feature can transform various apps. He shares insights on different libraries, algorithms, and techniques for building local-first experiences and highlights the advantages of Elixir and Phoenix LiveView. Tony also shares his go-to tools, like Inertia.js for connecting Phoenix backends with JavaScript frontends, and favorite Elixir packages like Oban, Joken, and Hammer, offering a toolkit for anyone building powerful, adaptable applications. Topics discussed in this episode: Tony Dang's background from mechanical engineer to web developer Building an offline-enabled to-do app with Phoenix LiveView and Svelte CRDTs: Conflict-free Replicated Data Types for merging changes offline How to make a LiveView app work offline Sending full state updates vs. incremental updates for performance optimization Inspiring others through open-source projects and community contributions Learning vanilla Phoenix and Channels to understand LiveView better Handling stale CSRF tokens when reconnecting to a LiveView app offline Exploring service workers and browser APIs for managing offline connectivity Balancing the use of JavaScript and Elixir in web development Fostering a supportive and inspiring Elixir community Links mentioned: Working in Elevators: How to build an offline-enabled, real-time todo app w/ LiveView, Svelte, & Yjs Tony’s Twitter: https://x.com/tonydangblog https://liveview-svelte-pwa.fly.dev/ https://github.com/tonydangblog/liveview-svelte-pwa CRDT: https://en.wikipedia.org/wiki/Conflict-free_replicated_data_type PWA: https://en.wikipedia.org/wiki/Progressive_web_app https://github.com/josevalim/sync https://github.com/sveltejs/svelte https://github.com/woutdp/live_svelte https://github.com/yjs/yjs https://github.com/satoren/y_ex https://github.com/y-crdt/y-crdt https://linear.app/ https://github.com/automerge/automerge https://hexdocs.pm/phoenix/1.4.0-rc.1/presence.html Vaxine, the Rich CRDT Database for ElixirPhoenix Apps | James Arthur | Code BEAM America 2022 https://github.com/electric-sql/vaxine Hybrid Logical Clocks https://muratbuffalo.blogspot.com/2014/07/hybrid-logical-clocks.html https://en.wikipedia.org/wiki/256_(number) CSRF Tokens in LiveView https://hexdocs.pm/phoenixliveview/Phoenix.LiveView.html#getconnectparams/1 https://hexdocs.pm/phoenix/channels.html Authentication with Passkeys Talk by Tony https://www.meetup.com/dc-elixir/ https://github.com/rails/rails https://github.com/facebook/react-native https://github.com/vuejs https://github.com/laravel/laravel https://hexdocs.pm/phoenixliveview/js-interop.html https://github.com/inertiajs https://github.com/inertiajs/inertia-phoenix https://savvycal.com/ https://github.com/wojtekmach/req https://github.com/oban-bg/oban https://github.com/joken-elixir/joken https://github.com/ExHammer/hammerSpecial Guest: Tony Dang.

Om Podcasten

Elixir Wizards is an interview-style podcast for anyone interested in functional programming and the Elixir Programming Language. Hosted by SmartLogic engineers and Elixirists Owen Bickford, Dan Ivovich, and Sundi Myint, this show features in-depth discussions with some of the brightest minds in the industry, discussing training and documentation in Phoenix LiveView, the evolution of programming languages, Erlang VM, and more. In the current season, we're branching out from Elixir to compare notes with thought leaders and software engineers from programming languages like JavaScript, Ruby on Rails, Go, Scala, Java, and more. Each episode will take a deep dive into a topic from Machine Learning and AI, to ECS and game development, to education and community. Learn more about how SmartLogic uses Phoenix and Elixir. (https://smartlogic.io/phoenix-and-elixir?utm_source=podcast)