access post data via http https

without a tag 'i':
/feeds/posts/default/-/i/?atom.xml?redirect=false&start-index=1&max-results=1&alt=json
/feeds/posts/default/-/i/?atom.xml?redirect=false&start-index=2&max-results=1&alt=json
/feeds/posts/default/-/i/?atom.xml?redirect=false&start-index=3&max-results=1&alt=json

without a tag:
/feeds/posts/default/?atom.xml?redirect=false&start-index=1&max-results=1&alt=json
/feeds/posts/default/?atom.xml?redirect=false&start-index=2&max-results=1&alt=json
/feeds/posts/default/?atom.xml?redirect=false&start-index=3&max-results=1&alt=json