Preparing the application and understanding what we are building

Let's start this session using the application that we started to develop in the previous chapter. However, we will make some adjustments before continuing. First, we are going to add our code to the version control. In this way, we will not lose the progress we made in the previous chapter.

1. Inside the chapter-04 folder, create a new file called .gitignore and add the following code:

storage-db
.DS_Store

• See https://help.github.com/articles/ignoring-files for more information about ignoring files
• If you find yourself ignoring temporary files generated by your text editor or operating system, you probably want to add a global ignore instead git config --global core.excludesfile '~/.gitignore_global'
• Ignore the storage folder's due size

The previous code just added the storage-db folder to...