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Build a real-time Twitter clone in 15 minutes with LiveView and Phoenix 1.5

Chris McCord · tutorial · Watch on YouTube

Functional programmingWeb development

What it is

Phoenix creator Chris McCord builds a real-time Twitter-style app live with Phoenix LiveView 1.5 in about 15 minutes. It shows interactive, real-time updates without writing JavaScript.

Why Hacker News recommends it

HN points people to it as the demo that shows why LiveView and Elixir are worth a look.

  • 7 people recommended it
  • 6 different months
  • 3 strong recommendations
  • first 2020, last 2025

What HN commenters said

  1. “Never before I've been so bluffed by a new technology”

    Impressive live demo of real-time app with live reload

    realusername, 2020-12 · Strong recommendation · in “Ask HN: Best Talks of 2020?”

  2. “the demo completely blew my mind”

    Demo that blew the commenter's mind

    staticelf, 2020-12 · Strong recommendation · in “Ask HN: Best Talks of 2020?”

  3. “you can build a Twitter timeline clone in under 18 minutes using Phoenix LiveView”

    Builds a Twitter timeline clone quickly with LiveView

    bigbassroller, 2020-06 · Recommendation · in “Ask HN: Go vs. Ruby/Rails for first time indie dev?”

  4. “This one's also pretty good”

    Live demo building a Twitter clone with LiveView

    mercer, 2020-09 · Recommendation · in “Vue.js Creator Evan You Interview”

  5. “This video explains it well (though it's also a demo of LiveView)”

    Explains LiveView's tiny websocket payloads while demoing it

    sodapopcan, 2021-01 · Recommendation · in “StimulusReflex, or LiveView for Rails”

  6. “Here's a neat demo. No JavaScript required.”

    Neat demo of interactive app with no JavaScript

    frellus, 2021-08 · Recommendation · in “Why Erlang?”

  7. “will give a good overview of this”

    Good overview of building dynamic apps with LiveView

    dmitriid, 2023-03 · Recommendation · in “Phoenix Dev Blog – Streams”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: elixir, phoenix, liveview, real-time web, live coding

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