How to get the Joplin note's body by API

I recently try to make a website that can read Joplin's note. But I try to get Joplin note's API by this URL's format:

I can get "id", "parent_id", "title" and "type_" only, and the json like below:

How to get the Joplin Data API note body?

You can change the fields that will be returned by the API using the fields= query parameter, which takes a list of comma separated fields. See