Step: Identity operator(.)

The absolute simplest filter is .

This filter takes an input and produces identical output. By default it also pretty-prints the value. So if you want to pretty-print your JSON - just apply filter . Now Try that yourself.

On the left you see the input that you need to transform. One the right - the value we expect to see. Write your JQ expression in the "JQ Expression" box and click "Check" button.

{"firstName":"Charles","lastName":"Doe"}

{
  "firstName": "Charles",
  "lastName": "Doe"
}