phoenix on Poeticoding

Effortless Video Sharing with Phoenix LiveView and FLAME

Thu, 28 Nov 2024 18:09:06 +0000

As someone who loves experimenting with new technologies, I recently got the Vision Pro (I’m a big fan of VR and the idea of working in mixed reality). What excites me the most is sharing the cool stuff I discover, with my friends and colleagues, like how amazing it is to have a floating 3D model in mixed reality, built with just a few lines of Swift code.

Yet Another Guide To Build a JSON API with Phoenix 1.5

Tue, 06 Oct 2020 20:36:16 +0000

We are going to build a polling app step-by-step. It will be similar to strawpoll.me where users can create and vote on polls and see the results in real-time.

In this blogpost we will only create the basic version of this app and in later blog posts we will add more features like authentication, ip blocking, different voting types and more.

How to Setup Phoenix LiveView

Tue, 29 Oct 2019 17:18:48 +0000

Updated for LiveView 0.11.0 - 7th April 2020

Understanding Phoenix LiveView

Phoenix LiveView has been released on Hex! Although it’s still not a stable release (at the time of writing 0.11.0), it works really well and it’s packed of cool features.

Phoenix LiveView live_link

Wed, 26 Jun 2019 14:45:03 +0000

In the previous article focused on live_redirect, we’ve seen how in Phoenix LiveView we can change the URL without changing the location or refreshing the page. In this way we can keep the URL updated with the current page state, making easier for the user to bookmark or share it.

Phoenix LiveView - Change the URL without refreshing the page

Wed, 19 Jun 2019 16:11:17 +0000

It’s now possible to try the pushState support available in Phoenix LiveView (which, remember, is still in beta)

Add live_link and live_redirect for push state support

What is pushState and why can be useful?

With Phoenix LiveView we can easily update parts of the page without having to change the location, refreshing the page or directly use JavaScript.

Dealing with long-running HTTP Requests and Timeouts in Phoenix

Wed, 01 May 2019 18:36:58 +0000

Phoenix is fast and highly concurrent and it can process HTTP requests in less than a millisecond. It is our priority to serve the requests as fast as possible, but the reality is that sometimes processing a request can take too long. This forces Phoenix to trigger a timeout and close the connection.

Step-by-Step Tutorial to Build a Phoenix App that Supports User Upload

Wed, 17 Apr 2019 15:00:23 +0000

Part 1: this article
Part 2: Creating Thumbnails of uploaded Images and PDF in Phoenix
Part 3: Add a Progress Bar in the Phoenix File Upload app

There are many ways to let users upload their files to our Phoenix app, including reliable libraries that manage the uploads for us, saving the files securely on cloud storage.

Connecting Elixir Nodes with libcluster, locally and on Kubernetes

Wed, 06 Feb 2019 12:57:02 +0000

In the last few articles we saw how to make our Phoenix chat app distributed; at the beginning with Redis, and after with distributed Elixir connecting the nodes together.

We had just one problem; we had to manually connect to the nodes in the IEX console. This is an issue in production. In this video we will see how to automatically cluster the Phoenix chat nodes using the libcluster library locally, and on a Kubernetes cluster with a dynamic number of nodes.

Distributed Phoenix Chat with PubSub PG2 adapter

Wed, 30 Jan 2019 16:44:08 +0000

In this article we’ll see how to cluster the Phoenix Chat nodes, using a really powerful functionality embedded in BEAM (the Elixir/Erlang VM), for easily communicate between Elixir nodes. We’ll then see how pg2 works and inspect how Phoenix efficiently broadcasts the messages in a distributed chat app.

Distributed Phoenix Chat using Redis PubSub

Wed, 23 Jan 2019 18:21:34 +0000

In the previous article, Create a High-Availability Kubernetes Cluster on AWS with Kops, we have seen how to create a Kubernetes cluster and how to deploy the Phoenix Chat app. The single node configuration worked well, but when we tried to scale out we saw that the messages were not sent to all the browsers.

Create a High-Availability Kubernetes Cluster on AWS with Kops

Wed, 16 Jan 2019 14:58:56 +0000

This article has a bit more of DevOps flavour than the previous articles, focused more on Elixir. In this article I show how to easily run a multi-zone Kubernetes cluster on AWS, where we’ll deploy a Phoenix Chat application.

There are many ways to deploy a Kubernetes cluster on AWS (Amazon Web Services). At the moment, AWS offers EKS, Elastic Kubernetes Service, which helps us deploy and manage our Kubernetes clusters. It costs $0.20/hr, which is $144/month: that’s not cheap actually, especially if we want to run a small cluster. And it’s not just about the cost: I find EKS still too young, preferring kops over it.