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  <h1 id="dev_page_title">initConnection</h1>
  
  <div id="dev_page_content"><p>Initialize connection</p>
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      <a class="dropdown-toggle"  onclick="return dropdownClick(this, event)" href="#">Layer 158 <b class="caret"></b></a>
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        <li><a href="?layer=1">1 &ndash; Base layer</a></li><li><a href="?layer=2">2 &ndash; New userpic notifications</a></li><li><a href="?layer=3">3 &ndash; Send message can trigger link change</a></li><li><a href="?layer=4">4 &ndash; Check-in chats</a></li><li><a href="?layer=5">5 &ndash; Localized SMS, localized notifications</a></li><li><a href="?layer=6">6 &ndash; Foursquare integration</a></li><li><a href="?layer=7">7 &ndash; Added wallPaperSolid</a></li><li><a href="?layer=8">8 &ndash; Added end-to-end encryption</a></li><li><a href="?layer=9">9 &ndash; Improved big files upload perfomance</a></li><li><a href="?layer=10">10 &ndash; Improved chat participants updates</a></li><li><a href="?layer=11">11 &ndash;  Improved secret chats</a></li><li><a href="?layer=12">12 &ndash; New dynamic support</a></li><li><a href="?layer=13">13 &ndash; Audio, video MIME; contacts import retry; new secret actions</a></li><li><a href="?layer=14">14 &ndash; Notify settings sync, blacklist sync</a></li><li><a href="?layer=15">15 &ndash; Modified getHistory offset behaviour</a></li><li><a href="?layer=16">16 &ndash; Split sendCode into 2 parts</a></li><li><a href="?layer=17">17 &ndash; Added custom typing, introduced message flags</a></li><li><a href="?layer=18">18 &ndash; Added usernames</a></li><li><a href="?layer=23">23 &ndash;  Stickers for secret chats</a></li><li><a href="?layer=105">105 &ndash;  Scheduled messages, Cloud themes</a></li><li><a href="?layer=108">108 &ndash; Login with QR code</a></li><li><a href="?layer=109">109 &ndash;  Polls v2</a></li><li><a href="?layer=110">110 &ndash;  People Nearby 2.0, Bank card entity</a></li><li><a href="?layer=111">111 &ndash;  Folders, Broadcast Stats</a></li><li><a href="?layer=112">112 &ndash;  Old featured stickers, generic dice, poll timer, poll solution</a></li><li><a href="?layer=113">113 &ndash;  PSA</a></li><li><a href="?layer=114">114 &ndash;  Video thumbs for GIFs</a></li><li><a href="?layer=115">115 &ndash;  Peek Channel Invite</a></li><li><a href="?layer=116">116 &ndash;  Group Stats, Profile Videos</a></li><li><a href="?layer=117">117 &ndash;  WebRTC Phone Calls</a></li><li><a href="?layer=118">118 &ndash;  Callback with 2FA, Countries list</a></li><li><a href="?layer=119">119 &ndash;  Comments in channels, Threads, Anonymous Admins</a></li><li><a href="?layer=120">120 &ndash;  Multipins, Message Stats, GeoLive v2</a></li><li><a href="?layer=121">121 &ndash;  SVG-based Outlines for Stickers</a></li><li><a href="?layer=122">122 &ndash;  Voice Chats</a></li><li><a href="?layer=123">123 &ndash;  Voice Chat improvements</a></li><li><a href="?layer=124">124 &ndash;  Expiring Invite links</a></li><li><a href="?layer=125">125 &ndash;  Voice Chats in Broadcasts</a></li><li><a href="?layer=126">126 &ndash;  Ban channels in channels</a></li><li><a href="?layer=127">127 &ndash;  Payments in channels</a></li><li><a href="?layer=128">128 &ndash;  Microthumbs for User/Chat profile photos</a></li><li><a href="?layer=129">129 &ndash;  Video Chats</a></li><li><a href="?layer=130">130 &ndash;  Custom placeholder for bot reply keyboards</a></li><li><a href="?layer=131">131 &ndash;  Reset 2FA Password after a week</a></li><li><a href="?layer=132">132 &ndash;  Chat themes</a></li><li><a href="?layer=133">133 &ndash;  64-bit IDs for User/Chat</a></li><li><a href="?layer=134">134 &ndash;  Chat Requests, Shared Media Calendar</a></li><li><a href="?layer=135">135 &ndash;  Send Message As a Channel</a></li><li><a href="?layer=136">136 &ndash;  Reactions</a></li><li><a href="?layer=137">137 &ndash;  Translations</a></li><li><a href="?layer=138">138 &ndash;  GIF Sticker Packs</a></li><li><a href="?layer=139">139 &ndash;  RTMP streaming</a></li><li><a href="?layer=140">140 &ndash;  WebApps, Cloud Ringtones</a></li><li><a href="?layer=142">142 &ndash;   TCP Reflectors</a></li><li><a href="?layer=143">143 &ndash;  Premium Subscription, Cloud Invoices</a></li><li><a href="?layer=144">144 &ndash;  Premium as a Gift, Custom Emoji</a></li><li><a href="?layer=145">145 &ndash;  Custom Reactions, Statuses, Sign In with email</a></li><li><a href="?layer=147">147 &ndash;  Keywords for stickers and emojis</a></li><li><a href="?layer=148">148 &ndash;  Forums, collectible usernames</a></li><li><a href="?layer=150">150 &ndash;  Pinned forum topics, general topic</a></li><li><a href="?layer=151">151 &ndash;  Media spoilers, suggested profile photos</a></li><li><a href="?layer=152">152 &ndash;  Real-time translations, Firebase SMS authentication</a></li><li><a href="?layer=153">153 &ndash;  Modify created stickersets</a></li><li><a href="?layer=155">155 &ndash;  Dates for reactions</a></li><li><a href="?layer=158"><strong>158 &ndash;  Shared folders, per-chat wallpapers</strong></a></li>
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<pre class="page_scheme"><code>---functions---
<a  href="/method/initConnection"  class="current_page_link" >initConnection</a>#c1cd5ea9 {X:Type} flags:<a  href="/type/%23" >#</a> api_id:<a  href="/type/int" >int</a> device_model:<a  href="/type/string" >string</a> system_version:<a  href="/type/string" >string</a> app_version:<a  href="/type/string" >string</a> system_lang_code:<a  href="/type/string" >string</a> lang_pack:<a  href="/type/string" >string</a> lang_code:<a  href="/type/string" >string</a> proxy:flags.0?<a  href="/type/InputClientProxy" >InputClientProxy</a> params:flags.1?<a  href="/type/JSONValue" >JSONValue</a> query:!X = X;</code></pre></p>
<h3><a class="anchor" href="#parameters" id="parameters" name="parameters"><i class="anchor-icon"></i></a>Parameters</h3>
<table class="table">
<thead>
<tr>
<th>Name</th>
<th style="text-align: center;">Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>flags</strong></td>
<td style="text-align: center;"><a href="/type/%23">#</a></td>
<td>Flags, see <a href="/mtproto/TL-combinators#conditional-fields">TL conditional fields</a></td>
</tr>
<tr>
<td><strong>api_id</strong></td>
<td style="text-align: center;"><a href="/type/int">int</a></td>
<td>Application identifier (see. <a href="/myapp">App configuration</a>)</td>
</tr>
<tr>
<td><strong>device_model</strong></td>
<td style="text-align: center;"><a href="/type/string">string</a></td>
<td>Device model</td>
</tr>
<tr>
<td><strong>system_version</strong></td>
<td style="text-align: center;"><a href="/type/string">string</a></td>
<td>Operation system version</td>
</tr>
<tr>
<td><strong>app_version</strong></td>
<td style="text-align: center;"><a href="/type/string">string</a></td>
<td>Application version</td>
</tr>
<tr>
<td><strong>system_lang_code</strong></td>
<td style="text-align: center;"><a href="/type/string">string</a></td>
<td>Code for the language used on the device's OS, ISO 639-1 standard</td>
</tr>
<tr>
<td><strong>lang_pack</strong></td>
<td style="text-align: center;"><a href="/type/string">string</a></td>
<td>Language pack to use</td>
</tr>
<tr>
<td><strong>lang_code</strong></td>
<td style="text-align: center;"><a href="/type/string">string</a></td>
<td>Code for the language used on the client, ISO 639-1 standard</td>
</tr>
<tr>
<td><strong>proxy</strong></td>
<td style="text-align: center;"><a href="/mtproto/TL-combinators#conditional-fields">flags</a>.0?<a href="/type/InputClientProxy">InputClientProxy</a></td>
<td>Info about an MTProto proxy</td>
</tr>
<tr>
<td><strong>params</strong></td>
<td style="text-align: center;"><a href="/mtproto/TL-combinators#conditional-fields">flags</a>.1?<a href="/type/JSONValue">JSONValue</a></td>
<td>Additional initConnection parameters. <br>For now, only the <code>tz_offset</code> field is supported, for specifying timezone offset in seconds.</td>
</tr>
<tr>
<td><strong>query</strong></td>
<td style="text-align: center;">!X</td>
<td>The query itself</td>
</tr>
</tbody>
</table>
<h3><a class="anchor" href="#result" id="result" name="result"><i class="anchor-icon"></i></a>Result</h3>
<p>The type returned by the invoked method.</p>
<h3><a class="anchor" href="#possible-errors" id="possible-errors" name="possible-errors"><i class="anchor-icon"></i></a>Possible errors</h3>
<table class="table">
<thead>
<tr>
<th>Code</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>400</td>
<td>CONNECTION_LAYER_INVALID</td>
<td>Layer invalid.</td>
</tr>
</tbody>
</table>
<h3><a class="anchor" href="#bots-can-use-this-method" id="bots-can-use-this-method" name="bots-can-use-this-method"><i class="anchor-icon"></i></a>Bots can use this method</h3></div>
  
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