Hi Padhi,
The variables starting with {{ and ending with }} are environment variables. You should create an environment and fill in the variables for these values. To start off you could try to just hardcode the variables in your request.
You need to know four variables:
- api_key
- api_password
- store_name
- api_version
The API version is probably in the format like ‘v1’. It is not possible for us to know where you have to get these values tho.