Pry Cheat Sheet
Command Line
pry -r ./config/app_init_file.rb
- load your app into a pry session (look at the file loaded by config.ru)pry -r ./config/environment.rb
- load your rails into a pry session
Debugger
var mtgoxDump = './dump.sql'; // this is the database file outputted by the Trade Downloader ( https://bitcointalk.org/index.php?topic=221055.0 ) | |
var output = './candles-' + (+new Date()) + '.csv'; // csv file with your candles | |
var db = require('sqlite-wrapper')(mtgoxDump); | |
var moment = require('moment'); | |
var _ = require('underscore'); | |
var fs = require('fs'); | |
var i = 0; |
Command Line
pry -r ./config/app_init_file.rb
- load your app into a pry session (look at the file loaded by config.ru)pry -r ./config/environment.rb
- load your rails into a pry sessionDebugger
Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.
brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus
Note: this is a work-in-progress and will be updated with more information over the next few days.
This guide will walk you through deploying your own instance of the open-source Parse Server. This would be a good starting point for testing your existing application to see if the functionality provided by the server is enough for your application, and to potentially plan your migration off the Parse Platform.
This guide will walk you through using Elastic Beanstalk (EB), which is an AWS service similar to Heroku. Why use EB rather than Heroku? Elastic Beanstalk does not lock you into Heroku-specific ways of doing things, is likely cheaper to run your backend on than Heroku, and it integrates with other services that AWS offer (and they offer almost everything one needs to run an application these days).
Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...
// see: https://github.com/chadoe/docker-cleanup-volumes
$ docker volume rm $(docker volume ls -qf dangling=true)
$ docker volume ls -qf dangling=true | xargs -r docker volume rm
package sample.eventdriven.scala | |
import akka.actor.{Actor, ActorRef, ActorSystem, Inbox, Props} | |
import akka.persistence.PersistentActor | |
import scala.concurrent.ExecutionContext.Implicits._ | |
import scala.concurrent.duration._ | |
// =============================================================== | |
// Demo of an Event-driven Architecture in Akka and Scala. |