user1760: I want to get CPFP information out of a full node—that is, ancestorsize and ancestorfees—in order to calculate the necessary fee for either CPFP, or RBF if possible.
Can I get this information through an RPC without requesting the full mempool dump?
I need this to build tools for CPFP/RBF, that are connecting to full node via RPC. But I can only find the full mempool dump, which is inefficient for this. (I don't need the full dump for one transaction information).

user1760: The answer is getmempoolentry.
https://chainquery.com/bitcoin-api/help/getmempoolentry

1760: <p>I want to get CPFP information out of a full node—that is, <code>ancestorsize</code> and <code>ancestorfees</code>—in order to calculate the necessary fee for either CPFP, or RBF if possible.</p>
<p>Can I get this information through an RPC without requesting the full mempool dump?</p>
<p>I need this to build tools for CPFP/RBF, that are connecting to full node via RPC. But I can only find the full mempool dump, which is inefficient for this. (I don't need the full dump for one transaction information).</p>
 1760: <p>The answer is <code>getmempoolentry</code>.</p>

<p><a href="https://chainquery.com/bitcoin-api/help/getmempoolentry" rel="nofollow noreferrer">https://chainquery.com/bitcoin-api/help/getmempoolentry</a></p>
