DamianRivas

Serializers

Why Serialize?

API's either receive data-modifying requests (post, put, delete) or data-accessing requests (get), and in either case, their response can involve retreiving data, serializing that data into JSON, and returning it.

In Rails, this serialization could be done manually, by, say, creating a serializer method:

# User.rb
def serialize
 hash = {}

DamianRivas

How to reset PG Database on Heroku?

• Step 1: heroku restart
• Step 2: heroku pg:reset DATABASE (no need to change the DATABASE)
• Step 3: heroku run rake db:migrate
• Step 4: heroku run rake db:seed (if you have seed)

One liner

heroku restart && heroku pg:reset DATABASE --confirm APP-NAME && heroku run rake db:migrate

DamianRivas

1. This file declares a class, Player, instantiates it, and assigns it to a global player variable.
2. The Player class contains four methods:
   • constructor()
   • playPause()
   • skipTo()
   • setVolume()
3. The constructor() method sets initial values for the currentlyPlaying, playState, volume, and soundObject properties.
   • currentlyPlaying is set to the first item in album.songs.
   • The initial playState is "stopped".

• The volume is set to the number 80.