CLI application   

Functionality:

• Allows to get all contacts from json file
• Allows to get particular contact by ID
• Allows to add new contact
• Allows to remove any contact by ID

Usage:

There are 4 types of commands for actions listed above. You can find examples below, please run the commands in the terminal.

1. node index.js --action="list"
   Receive and display the entire list of contacts.
   
2. node index.js --action="get" --id=5
   Receive and display particular contact.
   
3. node index.js --action="add" --name="Mango" --email="mango@gmail.com" --phone="322-22-22"
   Add new contact to the list.
   
4. node index.js --action="remove" --id=1
   Delete contact.
   

Screenshots of command execution:

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