Request URL
https://api-m.paypal.com/v1/catalogs/products

Method: Post

Header
Authorization: Bearer xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  // xxxxxxxxxxxxxxxx  is base64 encoded Client ID:Secret  // base64_encode(client_id_string:client_secret_string) – note the colon in between
PayPal-Request-Id:TEST-REQ-ID-12345       —-  This is optional. Passing this will make consequent requests work on same initial Request. Better to omit it.

Body

{
  "id": "YOUR OWN PRODUCT ID",
  "name": "NAME",
  "status": "ACTIVE",
  "description": "DESCRIPTION GOES HERE",
  "type":"DIGITAL", //SUITABLE TYPE
  "category":"SOFTWARE",  //SUITABLE CATEGORY
  "home_url":"YOUR WEBSITE PAGE - WHERE DETAILS OF PRODUCT IS THERE"
}

Return
The call will return the same details on success