[napoleond]

Just use https://www.hnsearch.com, along with https://www.hnsearch.com/rss and https://www.hnsearch.com/bigrss if you want to mimic the front page.

There is rarely a need to scrape HN directly, but if you do make sure your bot is polite (especially with respect to rate limits).

[kaushikfrnd]

I am trying to fetch all posts,comments plus all user data . I will ty hnsearch .