How can I access the contents of a (new-style) Google sheet a JSON? My aim is to access the values from JavaScript, so I need to be able to download the JSON via HTTP.
Here's how to get the JSON using those same URL parameters:
"https://spreadsheets.google.com/feeds/list/" + spreadsheetID + "/od6/public/values?alt=json";
Creds to @jochen on the answer with the path all the way up to XML "https://spreadsheets.google.com/feeds/list/" + spreadsheetID + "/od6/public/" + sheetID;
As @jochen's answer explains, this sheetID
is based on the order of the sheets in the spreadsheet.