Gordon Turibamwe gordonturibamwe

Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

Download This sample on Google Play Store

JWT Auth + Refresh Tokens in Rails

This is just some code I recently used in my development application in order to add token-based authentication for my api-only rails app. The api-client was to be consumed by a mobile application, so I needed an authentication solution that would keep the user logged in indefinetly and the only way to do this was either using refresh tokens or sliding sessions.

I also needed a way to both blacklist and whitelist tokens based on a unique identifier (jti)

Before trying it out DIY, I considered using:

This blogpost shows how to setup Rails 6 with Bootstrap 4.

This snippet shows a somehow different and less customized approach.

$ rails new rails6-bootstrap4
$ bundle --binstubs
$ yarn add bootstrap jquery popper.js expose-loader

Basic HTML Meta Tags

<meta charset='UTF-8'>
<meta name='keywords' content='your, tags'>
<meta name='description' content='150 words'>
<meta name='subject' content='your website's subject'>
<meta name='copyright' content='company name'>
<meta name='language' content='ES'>
<meta name='robots' content='index,follow'>

Rails Models

Generating models

$ rails g model User

Associations

belongs_to

has_one

	<!doctype html>
	<html>
	<head>
	<script type="text/javascript" src="vcard2.js"></script>
	</head>
	<body>
	<script type="text/javascript">
	// With helper methods
	var fooBar = vCard.create(vCard.Version.FOUR)
	fooBar.addFormattedname("Mr Foo Bar")

	# This hosts file is brought to you by Dan Pollock and can be found at
	# http://someonewhocares.org/hosts/
	# You are free to copy and distribute this file for non-commercial uses,
	# as long the original URL and attribution is included.

	#<localhost>
	127.0.0.1 localhost
	127.0.0.1 localhost.localdomain
	255.255.255.255 broadcasthost
	::1 localhost

	require 'rails_helper'

	RSpec.describe TodosController, :type => :controller do

	describe "GET #index" do
	#describe "POST #create" do
	#describe "GET #show" do
	#describe "PATCH #update" do (or PUT #update)
	#describe "DELETE #destroy" do
	#describe "GET #new" do

	#
	# Install the MYSQL driver
	# gem install mysql2
	#
	# Ensure the MySQL gem is defined in your Gemfile
	# gem 'mysql2'
	#
	# And be sure to use new-style password hashing:
	# http://dev.mysql.com/doc/refman/5.0/en/old-client.html
	development: