Rodolfo Carvalho rhcarvalho

Phoenix LiveView Multiple Locales

This gist was extracted from a Phoenix LiveView project where I needed to support multiple languages. Translations are managed using GetText and the standard commands available in projects generated with Phoenix 1.7.

The code in this gist demonstrates how to use a Plug to store the locale in the session and a LiveView on_mount hook to set the current locale in LiveView assigns.

The Plug integrates with the rest of the project through a router pipeline, and the on_mount hook is attached to every LiveView by updating the generated ...Web module.

DojoTimer helper for Linux

This script is used to launch DojoTimer on Linux/Mono.

Place both dojotimer and dojotimer.exe in one of the directories in your $PATH. I place then in ~/bin.

Now, from the working directory of your dojo, where you will have your tests and implementation, run:

dojotimer .

	# Single-file Phoenix LiveView demo showing how to batch events to reduce/control the flow of UI updates.
	#
	# Run with `elixir batcher_demo.exs`, then open a browser at http://localhost:5001/.
	#
	# For comparison, the "inc" event is batched while the "dec" event is not.
	#
	# References
	#
	# https://github.com/phoenixframework/phoenix_live_view/blob/main/.github/single-file-samples/main.exs
	# https://elixirforum.com/t/optimizing-liveview-for-realtime-applications-by-marlus-saraiva-elixirconf-eu-2023/59265?u=rhcarvalho

	# .github/workflows/test.yml
	# ...
	jobs:
	# ...
	lint-go:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-go@v3
	with:

	# coding: utf-8

	import contextvars
	import sys

	v = contextvars.ContextVar('v')
	v.set('global default')

	def code():
	print(f'before: v={v.get()}')

	// This is an example program that demonstrates how to continue a Sentry trace
	// for a hypothetical and arbitrary job runner, not a typical web server.
	//
	// Try it by running:
	//
	// go run main.go new
	// go run main.go 55c41d7f4727204c592c87974aa1eedb-01ae7746826ce117-1
	//
	// To actually report events to Sentry, set the DSN either by editing the
	// appropriate line below or setting the environment variable SENTRY_DSN to

	// https://play.golang.org/p/wSZvxQbT3KY

	package main

	import (
	"encoding/json"
	"fmt"
	"os"
	"strconv"
	"text/tabwriter"

	module sentry.io/go/chi-example

	go 1.13

	require (
	github.com/getsentry/sentry-go v0.4.0
	github.com/go-chi/chi v4.0.3+incompatible
	)

	class Greeter {
	final String name;
	Greeter(this.name);
	Greeter.withName(this.name);

	static Greeter staticWithName(String name) {
	return Greeter(name);
	}

	void greet(String who) {

	package main

	import (
	"fmt"
	)

	func main() {
	done := make(chan int)
	defer func() {
	<-done