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<div class="dev_page_bread_crumbs"><ul class="breadcrumb clearfix"><li><a href="/api" >API</a></li><i class="icon icon-breadcrumb-divider"></i><li><a href="/api/top-rating" >Top peer rating</a></li></ul></div>
<h1 id="dev_page_title">Top peer rating</h1>
<div id="dev_page_content"><p>If <a href="/method/contacts.toggleTopPeers">enabled</a>, the rating of <a href="/constructor/topPeer">top peers</a> indicates the relevance of a frequently used peer in a certain <a href="/type/TopPeerCategory">category</a> (frequently messaged users, frequently used bots, inline bots, frequently visited channels and so on).</p>
<p>Schema: </p>
<pre><code><a href='/constructor/topPeerCategoryBotsPM'>topPeerCategoryBotsPM</a>#ab661b5b = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeerCategoryBotsInline'>topPeerCategoryBotsInline</a>#148677e2 = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeerCategoryCorrespondents'>topPeerCategoryCorrespondents</a>#637b7ed = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeerCategoryGroups'>topPeerCategoryGroups</a>#bd17a14a = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeerCategoryChannels'>topPeerCategoryChannels</a>#161d9628 = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeerCategoryPhoneCalls'>topPeerCategoryPhoneCalls</a>#1e76a78c = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeerCategoryForwardUsers'>topPeerCategoryForwardUsers</a>#a8406ca9 = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeerCategoryForwardChats'>topPeerCategoryForwardChats</a>#fbeec0f0 = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeerCategoryBotsApp'>topPeerCategoryBotsApp</a>#fd9e7bec = <a href='/type/TopPeerCategory'>TopPeerCategory</a>;
<a href='/constructor/topPeer'>topPeer</a>#edcdc05b peer:<a href='/type/Peer'>Peer</a> rating:<a href='/type/double'>double</a> = <a href='/type/TopPeer'>TopPeer</a>;
<a href='/constructor/topPeerCategoryPeers'>topPeerCategoryPeers</a>#fb834291 category:<a href='/type/TopPeerCategory'>TopPeerCategory</a> count:<a href='/type/int'>int</a> peers:<a href='/type/Vector%20t'>Vector</a>&lt;<a href='/type/TopPeer'>TopPeer</a>&gt; = <a href='/type/TopPeerCategoryPeers'>TopPeerCategoryPeers</a>;
<a href='/constructor/contacts.topPeersNotModified'>contacts.topPeersNotModified</a>#de266ef5 = <a href='/type/contacts.TopPeers'>contacts.TopPeers</a>;
<a href='/constructor/contacts.topPeers'>contacts.topPeers</a>#70b772a8 categories:<a href='/type/Vector%20t'>Vector</a>&lt;<a href='/type/TopPeerCategoryPeers'>TopPeerCategoryPeers</a>&gt; chats:<a href='/type/Vector%20t'>Vector</a>&lt;<a href='/type/Chat'>Chat</a>&gt; users:<a href='/type/Vector%20t'>Vector</a>&lt;<a href='/type/User'>User</a>&gt; = <a href='/type/contacts.TopPeers'>contacts.TopPeers</a>;
<a href='/constructor/contacts.topPeersDisabled'>contacts.topPeersDisabled</a>#b52c939d = <a href='/type/contacts.TopPeers'>contacts.TopPeers</a>;
---functions---
<a href='/method/contacts.toggleTopPeers'>contacts.toggleTopPeers</a>#8514bdda enabled:<a href='/type/Bool'>Bool</a> = <a href='/type/Bool'>Bool</a>;
<a href='/method/contacts.getTopPeers'>contacts.getTopPeers</a>#973478b6 flags:<a href='/type/%23'>#</a> correspondents:flags.0?<a href='/constructor/true'>true</a> bots_pm:flags.1?<a href='/constructor/true'>true</a> bots_inline:flags.2?<a href='/constructor/true'>true</a> phone_calls:flags.3?<a href='/constructor/true'>true</a> forward_users:flags.4?<a href='/constructor/true'>true</a> forward_chats:flags.5?<a href='/constructor/true'>true</a> groups:flags.10?<a href='/constructor/true'>true</a> channels:flags.15?<a href='/constructor/true'>true</a> bots_app:flags.16?<a href='/constructor/true'>true</a> offset:<a href='/type/int'>int</a> limit:<a href='/type/int'>int</a> hash:<a href='/type/long'>long</a> = <a href='/type/contacts.TopPeers'>contacts.TopPeers</a>;
<a href='/method/contacts.resetTopPeerRating'>contacts.resetTopPeerRating</a>#1ae373ac category:<a href='/type/TopPeerCategory'>TopPeerCategory</a> peer:<a href='/type/InputPeer'>InputPeer</a> = <a href='/type/Bool'>Bool</a>;</code></pre>
<p>The rate delta is computed by taking the time delta between the last time the user used a certain peer and the last time the rating for that peer was received through <a href="/method/contacts.getTopPeers">contacts.getTopPeers</a> and dividing it by the <a href="/constructor/config">exponential decay from config</a>.</p>
<p>Specifically, clients should:</p>
<ol>
<li>On startup, invoke <a href="/method/contacts.getTopPeers">contacts.getTopPeers</a> for all the required peer rate categories, fetching and storing the ratings for all top peers in a local database. </li>
<li>Every time a user opens (for example) chat <code>123456789</code> the following operation must be done on the cached top peer info.<br>
 <br>
<code>dateOpened</code> indicates when was the peer used.<br>
<code>normalizeRate</code> is an arbitrary time in the recent past (when ratings are received from the server using <a href="/method/contacts.getTopPeers">contacts.getTopPeers</a> and the schema described above, it is the time when they were received).<br>
<code>config.rating_e_decay</code> is the <a href="/constructor/config">exponential decay from config</a>. </li>
</ol>
<pre><code> topPeer.rating += e^((dateOpened - normalizeRate) / config.rating_e_decay)</code></pre>
<ol start="3">
<li>Every time the client needs to display a list of commonly used bots, users, mini apps, call destinations, etc (for example for the <a href="/api/search#global-search">global search tab</a>), sort the peers by the <code>rating</code> for the specified category. </li>
</ol>
<p>Use <a href="/method/contacts.toggleTopPeers">contacts.toggleTopPeers</a> to enable or disable top peer ratings.<br>
Use <a href="/method/contacts.resetTopPeerRating">contacts.resetTopPeerRating</a> to reset the top peer rating of a certain peer, in a certain category.</p></div>
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