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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/import" >Imported messages</a></li></ul></div>
<h1 id="dev_page_title">Imported messages</h1>
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<p>Telegram allows importing messages and media from foreign chat apps.</p>
<blockquote>
<p>Note: This article is intended for MTProto API developers. If you're looking for a way to move history from other chat apps into Telegram, check out the related <a href="https://telegram.org/blog/move-history">Telegram blog post</a>.</p>
</blockquote>
<h3><a class="anchor" href="#1-validate-the-chat-export-file" id="1-validate-the-chat-export-file" name="1-validate-the-chat-export-file"><i class="anchor-icon"></i></a>1. Validate the chat export file</h3>
<pre><code><a href='/constructor/messages.historyImportParsed'>messages.historyImportParsed</a>#5e0fb7b9 flags:<a href='/type/%23'>#</a> pm:flags.0?<a href='/constructor/true'>true</a> group:flags.1?<a href='/constructor/true'>true</a> title:flags.2?<a href='/type/string'>string</a> = <a href='/type/messages.HistoryImportParsed'>messages.HistoryImportParsed</a>;
---functions---
<a href='/method/messages.checkHistoryImport'>messages.checkHistoryImport</a>#43fe19f3 import_head:<a href='/type/string'>string</a> = <a href='/type/messages.HistoryImportParsed'>messages.HistoryImportParsed</a>;</code></pre>
<p>The import process begins by calling <a href="/method/messages.checkHistoryImport">messages.checkHistoryImport</a>, passing to <code>import_head</code> up to 100 lines of the chat export file, starting from the beginning of the file.</p>
<p>The returned constructor contains information about the exported chat, including its title or type.
If the <code>pm</code> flag is set, the chat export file was generated from a private chat.
If the <code>group</code> flag is set, the chat export file was generated from a group chat.
If neither the <code>pm</code> or <code>group</code> flags are set, the specified chat export was generated from a chat of unknown type.</p>
<h3><a class="anchor" href="#2-choosing-a-destination-telegram-chat" id="2-choosing-a-destination-telegram-chat" name="2-choosing-a-destination-telegram-chat"><i class="anchor-icon"></i></a>2. Choosing a destination Telegram chat</h3>
<pre><code><a href='/constructor/messages.checkedHistoryImportPeer'>messages.checkedHistoryImportPeer</a>#a24de717 confirm_text:<a href='/type/string'>string</a> = <a href='/type/messages.CheckedHistoryImportPeer'>messages.CheckedHistoryImportPeer</a>;
---functions---
<a href='/method/messages.checkHistoryImportPeer'>messages.checkHistoryImportPeer</a>#5dc60f03 peer:<a href='/type/InputPeer'>InputPeer</a> = <a href='/type/messages.CheckedHistoryImportPeer'>messages.CheckedHistoryImportPeer</a>;</code></pre>
<p>Using <a href="/method/messages.checkHistoryImportPeer">messages.checkHistoryImportPeer</a>, check whether chat history exported from another chat app can be imported into a specific Telegram <code>peer</code>, chosen by the user.<br>
Typically, history imports are allowed for private chats with a mutual contact or <a href="/api/channel">supergroups</a> with <a href="/api/rights"><code>change_info</code> administrator rights »</a>.</p>
<p>If the check succeeds, and no RPC errors are returned, a <a href="/type/messages.CheckedHistoryImportPeer">messages.CheckedHistoryImportPeer</a> constructor will be returned, with a confirmation text to be shown to the user in a confirmation prompt.<br>
Upon final user confirmation, <a href="#3-initialize-the-import">the import process is initialized</a>. </p>
<h3><a class="anchor" href="#3-initialize-the-import" id="3-initialize-the-import" name="3-initialize-the-import"><i class="anchor-icon"></i></a>3. Initialize the import</h3>
<pre><code><a href='/constructor/messages.historyImport'>messages.historyImport</a>#1662af0b id:<a href='/type/long'>long</a> = <a href='/type/messages.HistoryImport'>messages.HistoryImport</a>;
---functions---
<a href='/method/messages.initHistoryImport'>messages.initHistoryImport</a>#34090c3b peer:<a href='/type/InputPeer'>InputPeer</a> file:<a href='/type/InputFile'>InputFile</a> media_count:<a href='/type/int'>int</a> = <a href='/type/messages.HistoryImport'>messages.HistoryImport</a>;</code></pre>
<p>Use <a href="/method/messages.initHistoryImport">messages.initHistoryImport</a> to initialize the import process, passing the following parameters: </p>
<ul>
<li><code>peer</code> - The Telegram chat where the history should be imported.</li>
<li><code>file</code> - The chat export file.</li>
<li><code>media_count</code> - The number of media files associated with the export, to be uploaded in <a href="#4-uploading-media">the next step</a>. </li>
</ul>
<h3><a class="anchor" href="#4-uploading-media" id="4-uploading-media" name="4-uploading-media"><i class="anchor-icon"></i></a>4. Uploading media</h3>
<pre><code>---functions---
<a href='/method/messages.uploadImportedMedia'>messages.uploadImportedMedia</a>#2a862092 peer:<a href='/type/InputPeer'>InputPeer</a> import_id:<a href='/type/long'>long</a> file_name:<a href='/type/string'>string</a> media:<a href='/type/InputMedia'>InputMedia</a> = <a href='/type/MessageMedia'>MessageMedia</a>;</code></pre>
<p>Use <a href="/method/messages.uploadImportedMedia">messages.uploadImportedMedia</a> to upload media files eventually associated with the chat export.<br>
<code>import_id</code> is the <code>id</code> contained in the <a href="/constructor/messages.historyImport">messages.historyImport</a> constructor, returned by <a href="/method/messages.initHistoryImport">messages.initHistoryImport</a> <a href="#3-initialize-the-import">in the previous step</a>. </p>
<h3><a class="anchor" href="#5-finalize-the-import" id="5-finalize-the-import" name="5-finalize-the-import"><i class="anchor-icon"></i></a>5. Finalize the import</h3>
<pre><code><a href='/constructor/message'>message</a>#38116ee0 flags:<a href='/type/%23'>#</a> out:flags.1?<a href='/constructor/true'>true</a> mentioned:flags.4?<a href='/constructor/true'>true</a> media_unread:flags.5?<a href='/constructor/true'>true</a> silent:flags.13?<a href='/constructor/true'>true</a> post:flags.14?<a href='/constructor/true'>true</a> from_scheduled:flags.18?<a href='/constructor/true'>true</a> legacy:flags.19?<a href='/constructor/true'>true</a> edit_hide:flags.21?<a href='/constructor/true'>true</a> pinned:flags.24?<a href='/constructor/true'>true</a> noforwards:flags.26?<a href='/constructor/true'>true</a> id:<a href='/type/int'>int</a> from_id:flags.8?<a href='/type/Peer'>Peer</a> peer_id:<a href='/type/Peer'>Peer</a> fwd_from:flags.2?<a href='/type/MessageFwdHeader'>MessageFwdHeader</a> via_bot_id:flags.11?<a href='/type/long'>long</a> reply_to:flags.3?<a href='/type/MessageReplyHeader'>MessageReplyHeader</a> date:<a href='/type/int'>int</a> message:<a href='/type/string'>string</a> media:flags.9?<a href='/type/MessageMedia'>MessageMedia</a> reply_markup:flags.6?<a href='/type/ReplyMarkup'>ReplyMarkup</a> entities:flags.7?<a href='/type/Vector%20t'>Vector</a>&lt;<a href='/type/MessageEntity'>MessageEntity</a>&gt; views:flags.10?<a href='/type/int'>int</a> forwards:flags.10?<a href='/type/int'>int</a> replies:flags.23?<a href='/type/MessageReplies'>MessageReplies</a> edit_date:flags.15?<a href='/type/int'>int</a> post_author:flags.16?<a href='/type/string'>string</a> grouped_id:flags.17?<a href='/type/long'>long</a> reactions:flags.20?<a href='/type/MessageReactions'>MessageReactions</a> restriction_reason:flags.22?<a href='/type/Vector%20t'>Vector</a>&lt;<a href='/type/RestrictionReason'>RestrictionReason</a>&gt; ttl_period:flags.25?<a href='/type/int'>int</a> = <a href='/type/Message'>Message</a>;
<a href='/constructor/messageFwdHeader'>messageFwdHeader</a>#5f777dce flags:<a href='/type/%23'>#</a> imported:flags.7?<a href='/constructor/true'>true</a> from_id:flags.0?<a href='/type/Peer'>Peer</a> from_name:flags.5?<a href='/type/string'>string</a> date:<a href='/type/int'>int</a> channel_post:flags.2?<a href='/type/int'>int</a> post_author:flags.3?<a href='/type/string'>string</a> saved_from_peer:flags.4?<a href='/type/Peer'>Peer</a> saved_from_msg_id:flags.4?<a href='/type/int'>int</a> psa_type:flags.6?<a href='/type/string'>string</a> = <a href='/type/MessageFwdHeader'>MessageFwdHeader</a>;
---functions---
<a href='/method/messages.startHistoryImport'>messages.startHistoryImport</a>#b43df344 peer:<a href='/type/InputPeer'>InputPeer</a> import_id:<a href='/type/long'>long</a> = <a href='/type/Bool'>Bool</a>;</code></pre>
<p>Finally, invoke <a href="/method/messages.startHistoryImport">messages.startHistoryImport</a> to complete the <a href="/api/import">history import process</a>, importing all messages into the chat.<br>
As usual, <code>import_id</code> is the <code>id</code> contained in the <a href="/constructor/messages.historyImport">messages.historyImport</a> constructor, returned by <a href="/method/messages.initHistoryImport">messages.initHistoryImport</a>. </p>
<p>Imported messages will show in the chat history as <a href="/constructor/message">messages</a> containing a <code>fwd_from</code> <a href="/constructor/messageFwdHeader">messageFwdHeader</a> constructor with the <code>imported</code> flag, and should be appropriately marked in the UI as messages imported from a foreign chat app.</p></div>
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