We have a new version of the most popular Elixir framework - Phoenix framework!

New generators, fixes and improvements are now available. Find out more about the new HEEx engine.

Check: https://bartoszgorka.com/phoenix-1-6-released

Sooner or later you may need to convert a string in Elixir to a camel or snake case. With Macro module (available in Elixir without extra dependency) it’s super easy. https://curiosum.com/til/convert-string-to-camel-and-snake-case-elixir

People will tell you it’s an antipattern, but what if a library needs you to do this?

https://curiosum.com/til/load-css-to-string-with-webpack-raw-loader

In this post, you’ll learn how to easily redirect users to the previous path using the Navigation History plug.

It’s super easy! https://curiosum.com/til/how-to-redirect-user-back-in-elixir-phoenix

PhoenixBakery is library for Phoenix 1.6 (and later) that provides modules implementing Phoenix.Digester.Compressor. There are currently 3 modules:

• PhoenixBakery.Gzip that replaces default Phoenix.Digester.Gzip with stronger compression at cost of run time and memory usage. But as it is one-time action (for each release) it is IMHO better to use that build time for less transfer used later
• PhoenixBakery.Brotli that provides support for Brotli algorithm designed by Google and currently supported in all modern browsers. It provides better compression that gzip and moderate decompression speed.
• PhoenixBakery.Zstd that provides support for Zstandard algorithm designed by Facebook. While it is not supported by any browser (AFAIK), the support may rollout in near future. It provides slightly worse compression ratio than Brotli, but provides better decompression times.

Source: https://github.com/hauleth/phoenix_bakery

In the second part of our metaprogramming series, find out about the inner workings of macros in Elixir.

https://blog.appsignal.com/2021/10/05/under-the-hood-of-macros-in-elixir.html

In episode 67 of Thinking Elixir, we talk about ways we can all contribute to building a healthy Elixir community. The Elixir community is a welcoming, encouraging and helpful place and we want to help keep it that way! We talk about common problems facing maintainers, tips for engaging productively, the value of expressing appreciation, and much more!

https://thinkingelixir.com/podcast-episodes/067-building-a-healthy-community/

In episode 67 of Thinking Elixir, we talk about ways we can all contribute to building a healthy Elixir community. The Elixir community is a welcoming, encouraging and helpful place and we want to help keep it that way! We talk about common problems facing maintainers, tips for engaging productively, the value of expressing appreciation, and much more!

https://thinkingelixir.com/podcast-episodes/067-building-a-healthy-community/

How to prepare a Phoenix 1.6 application for deployment using Elixir Releases.

https://dev.to/miguelcoba/preparing-a-phoenix-1-6-app-for-deploying-with-elixir-releases-3gf6

Set up a continuous integration / continuous deployment (CI/CD) pipeline to automatically run your automated test on each pull request and automate deployment to Gigalixir when you push commits to your main branch.

https://staknine.com/continuous-deployment-gigalixir-github-actions/

Learn how to use a remote console and remote observer to debug your app in production. We can use these debugging tools to run code in production and monitor the Erlang Virtual Machine, processes, and applications remotely.

https://staknine.com/debug-phoenix-on-gigalixir-with-remote-console-and-observer/

PathGlob tests whether a file path matches a glob pattern, without touching the filesystem. It has the same semantics as Path.wildcard/2.

Path.wildcard/2 allows you to find all paths that match a certain glob pattern. If you only want to know whether a particular path matches a glob, then Path.wildcard/2 can be slow (depending on the glob), because it needs to traverse the filesystem.

PathGlob provides a PathGlob.match?/3 function to check a path against a glob without touching the filesystem. Internally, the glob pattern is compiled to a Regex and then checked via String.match?/2. If you want to compile the glob pattern ahead-of-time, you can use PathGlob.compile/2.

More info:

• https://github.com/jonleighton/path_glob
• https://hexdocs.pm/path_glob/readme.html

A guide on how to use TypeCheck and automated spectesting to make it impossible to use your functions incorrectly and reduce the amount of bugs you ship to production.

https://hexdocs.pm/type_check/type-checking-and-spec-testing-with-typecheck.html

Happy to announce the first release of HXL an Elixir implementation of the Hashicorp Configuration Language.

Features:

• Aims to be fully compliant with the HCL spec
• Decode from string or file
• Functions and variables can be provided during evaluation
• Config.Provider support

Source: https://github.com/drowzy/hxl Hex: https://hex.pm/packages/hxl

Hackney 1.18.0 released Hackney is a simple HTTP client for Erlang & Elixir applications

Changes:

• security: update default CA bundle (certifi 2.8.0)
• fix pool: make checkout synchrounous (remove unwanted messages)

Source: https://github.com/benoitc/hackney Hex: https://hex.pm/packages/hackney

Enjoy!

Discover how you can build LiveView forms that validate changes and provide real-time feedback to users.

https://blog.appsignal.com/2021/09/28/real-time-form-validations-with-phoenix-liveview.html

In episode 66 of Thinking Elixir, we talk with Kai Wern Choon about his experience tracing performance problems in production. We talk about what “tracing” means in a BEAM system, available tools like recon, great resources for learning how the tools work and general approaches for troubleshooting live production Elixir systems. Kai also shares his Livebook notebook setup for demonstrating tracing techniques in an interactive way.

https://thinkingelixir.com/podcast-episodes/066-tracing-production-with-kai-wern-choong/

Fly.io has a handy GraphQL API we can use to both create and deploy apps. This app will be deploying a livebook using only your fly auth token.

https://github.com/lubien/fly-together

A guide on deploying your Phoenix app to Gigalixir using Elixir releases. Uses runtime config (Elixir 1.11+), automated database migrations, and esbuild (Phoenix v1.6) setup.

https://staknine.com/deploy-phoenix-to-gigalixir-using-elixir-releases/

Blogpost presents several patterns for discovering sibling processes in OTP supervisors.

https://dev.to/miros/injecting-and-discovering-dependencies-in-otp-supervisors-352m