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### Testing if the client is a mobile or a desktop.
### The selection is based on the usual UA strings for desktop browsers.

## Testing a user agent using a method that reverts the logic of the
## UA detection. Inspired by notnotmobile.appspot.com.
map $http_user_agent $is_desktop {
    default 0;
    ~*linux.*android|windows\s+(?:ce|phone) 0; # exceptions to the rule
    ~*spider|crawl|slurp|bot 1; # bots
    ~*windows|linux|os\s+x\s*[\d\._]+|solaris|bsd 1; # OSes

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#!/bin/bash
echo "Generating an SSL private key to sign your certificate..."
openssl genrsa -des3 -out myssl.key 1024

echo "Generating a Certificate Signing Request..."
openssl req -new -key myssl.key -out myssl.csr

echo "Removing passphrase from key (for nginx)..."
cp myssl.key myssl.key.org
openssl rsa -in myssl.key.org -out myssl.key

jamesyang124

Memory Management and Performance

JavaScript engines such as Google’s V8 (Chrome, Node) are specifically designed for the fast execution of large JavaScript applications. As you develop, if you care about memory usage and performance, you should be aware of some of what’s going on in your user’s browser’s JavaScript engine behind the scenes.

Continue reading Writing Fast, Memory-Efficient JavaScript, great general overview of a Google employee

Videos

• Faster HTML and CSS: Layout Engine Internals for Web Developers: by David Baron of Mozilla
• Google I/O 2012 - Breaking the JavaScript Speed Limit with V8

jamesyang124

Event Sourcing and Microservices

talked by Ralph Winzinger

###Microservices I

• fault-tolerant /resilient

> through docker or other container services to supoprt backup/restore/launch-up when an instance is down.

jamesyang124

#########################
# .gitignore file for Xcode4 and Xcode5 Source projects
#
# Apple bugs, waiting for Apple to fix/respond:
#
#    15564624 - what does the xccheckout file in Xcode5 do? Where's the documentation?
#
# Version 2.6
# For latest version, see: http://stackoverflow.com/questions/49478/git-ignore-file-for-xcode-projects
#

jamesyang124

#####
# OS X temporary files that should never be committed
.DS_Store
*.swp
*.lock
profile

#####
# DotEnv files
.env

jamesyang124

##Requirement for HMAC secret key

• http://security.stackexchange.com/questions/95972/what-are-requirements-for-hmac-secret-key

HTTPS GET request query param is secured?

• http://stackoverflow.com/questions/323200/is-an-https-query-string-secure

Use JWT as CSRF token?

jamesyang124

Review of Effective Ruby

Item 2

All Objects Could Be nil

All objects are mutable by default. It can be nil, using nil?, is_a?, to_a, etc. to help the value validaiton for method input.

Item 3

jamesyang124

package main

import (
	"github.com/graphql-go/graphql"
	"github.com/graphql-go/handler"
	"net/http"
)

type Todo struct {
	ID   string `json:"id"`

jamesyang124

Slick 3.2.0 source code generator prepend final key word for Entity type case class generation, this leads the issue have not been resolved since years:

https://issues.scala-lang.org/browse/SI-4440

The workaround is to create custom source code generator then override that def caseClassFinal = true to false instead.

Related thread:

slick/slick#1665