Qing Wu wiserfirst

Service Region Test Investigation - Detailed Findings

Date: 2025-10-03 Test File: apps/admin/test/admin_web/integration/service_region_priority_test.exs:134 Test Name: "fetches only providers meeting criteria"

Executive Summary

Critical Finding: The insert_polygons function is COMPLETELY UNNECESSARY for this test. The test runs in 2.7 seconds, and the actual function being tested (available_providers) only takes 6.75ms. The remaining 2.6+ seconds is spent on WKT decoding and database inserts that serve no purpose.

Create new mobile_push_credential

Once you've obtained the certificate and private key for iOS (you can follow this guide for that), you can create a new iOS push_credential with the following request:

curl -X "POST" "https://api.telnyx.com/v2/mobile_push_credentials" \
     -H 'Authorization: Bearer <my-telnyx-api-key>' \
     -H 'Content-Type: application/json; charset=utf-8' \
     -d '{
  "certificate": "<my-iOS-Certificate>",

How to create a Slash command

Create a Slack app on https://api.slack.com/apps
Create a new Slash command in app management on Slack. A number of fields to fill out, but most important are:
- Command name: what the user should type after /
- Request URL: URL of the Slack app backend. When the user do type the command, Slack will send a POST request to the Request URL. It needs to be publicly accessible and it needs to be able to handle the requests from Slack.
Sample request from Slack

%{

How to start a video composition

Create or update room

One can create a room with recording enabled and a webhook_event_url using the following request:

curl -X "POST" "https://api.telnyx.com/v2/rooms" \
     -H 'Authorization: Bearer <my-telnyx-api-key>' \
     -H 'Content-Type: application/json; charset=utf-8' \

Keybase proof

I hereby claim:

I am wiserfirst on github.
I am wiserfirst (https://keybase.io/wiserfirst) on keybase.
I have a public key ASAt6O_wdsd5pJH5ZqKcWiuFwrVOjYi0fxpNxNlfVyZIOAo

To claim this, I am signing this object:

Naive Approach

product	10,000 events time (second)	total events	total time (hour)
MS	87.7	11,518,770	28.1
RE	106.8	62,502,979	185.4
REJR	63.3	3,801,180	6.7
REX	105.4	42,040,956	123.1
WF	85.3	1,643,635	3.9

	#!/usr/bin/env bash

	chromedriver_path=$(command -v chromedriver)

	unameOut="$(uname -s)"
	case "${unameOut}" in
	Linux*) chrome_path="/usr/bin/google-chrome";;
	Darwin*) chrome_path="/Applications/Google Chrome.app/Contents/MacOS/Google Chrome";;
	esac
	chromedriver_version=$("${chromedriver_path}" --version)

	#!/usr/bin/env ruby

	require 'shellwords'

	def usage
	puts <<~HEREDOC
	Usage:
	./video-converter.rb [dir]
	to convert mov/avi files to mp4 with H.264 video codec and AAC audio codec"
	HEREDOC

	const encode64 = str => Buffer.from(str).toString('base64')

	describe('base64 encoding comparison', () => {
	const triggerId = 'direct1'
	const fulfilmentType = 'ClickandCollect'
	const orderId = '000000123'
	const string = `{"property-value-westfield_direct_trigger_id":["${triggerId}"],"property-value-westfield_direct_received_fulfilment_type":["${fulfilmentType}"],"property-value-westfield_direct_received_order_id":["${orderId}"]}`

	it('should produce same result', () => {
	const encoded = encode64(string)

	def hello
	src = File.open('/Users/wiser/Downloads/sample.avro', 'rb')
	dst = File.open('/Users/wiser/Downloads/dest.avro', 'wb')
	# p get_events(file)
	data_reader =
	Avro::DataFile::Reader.new(src, Avro::IO::DatumReader.new)
	record = data_reader.first
	schema = Avro::Schema.parse(data_reader.meta["avro.schema"])
	# Creates DatumWriter instance with required schema.
	writer = Avro::IO::DatumWriter.new(schema)