API

Question 1

How to create API only rails app?

Answer 1

rails new api_sample –api

Question 2

How to send a post request with a body via POSTMAN?

Answer 2

# Body -> raw -> json
{
	"cat": {
		"name": "Nic"
	}
}

# controller
params[:cat][:name] # Nic

Question 3

What is CORS? And how to disable it?

Answer 3

CORS refers to ‘Cross origin resource sharing’ and it is essentially how the server filters out requests from an origin other than itself. ( You can set who can get access to your API ( url and request )

You can set up it using Rack-Cors gem.