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<title>JSDoc: Namespace: object</title>
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<h1 class="page-title">Namespace: object</h1>
<section>
<header>
<h2>
<span class="ancestors"><a href="module-bitmessage_structs.html">bitmessage/structs</a>.</span>
object
</h2>
</header>
<article>
<div class="container-overview">
<div class="description"><p>An <code>object</code> is a message which is shared throughout a stream. It is
the only message which propagates; all others are only between two
nodes.</p></div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line281">line 281</a>
</li></ul></dd>
<dt class="tag-see">See:</dt>
<dd class="tag-see">
<ul>
<li><a href="https://bitmessage.org/wiki/Protocol_specification#object">https://bitmessage.org/wiki/Protocol_specification#object</a></li>
</ul>
</dd>
</dl>
</div>
<h3 class="subsection-title">Members</h3>
<h4 class="name" id=".BROADCAST"><span class="type-signature">(static, constant) </span>BROADCAST<span class="type-signature"> :number</span></h4>
<div class="description">
<p><a href="module-bitmessage_objects.broadcast.html">broadcast</a> object type.</p>
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">number</span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line301">line 301</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".GETPUBKEY"><span class="type-signature">(static, constant) </span>GETPUBKEY<span class="type-signature"> :number</span></h4>
<div class="description">
<p><a href="module-bitmessage_objects.getpubkey.html">getpubkey</a> object type.</p>
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">number</span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line286">line 286</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".MSG"><span class="type-signature">(static, constant) </span>MSG<span class="type-signature"> :number</span></h4>
<div class="description">
<p><a href="module-bitmessage_objects.msg.html">msg</a> object type.</p>
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">number</span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line296">line 296</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".PUBKEY"><span class="type-signature">(static, constant) </span>PUBKEY<span class="type-signature"> :number</span></h4>
<div class="description">
<p><a href="module-bitmessage_objects.pubkey.html">pubkey</a> object type.</p>
</div>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">number</span>
</li>
</ul>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line291">line 291</a>
</li></ul></dd>
</dl>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id=".decode"><span class="type-signature">(static) </span>decode<span class="signature">(buf, opts<span class="signature-attributes">opt</span>)</span><span class="type-signature"> &rarr; {DecodeResult}</span></h4>
<div class="description">
<p>Decode <code>object</code> message.<br>NOTE: <code>nonce</code> and <code>objectPayload</code> are copied.</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>buf</code></td>
<td class="type">
<span class="param-type">Buffer</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Message</p></td>
</tr>
<tr>
<td class="name"><code>opts</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>Decoding options</p>
<h6>Properties</h6>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>allowExpired</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="description last"><p>Allow expired objects</p></td>
</tr>
<tr>
<td class="name"><code>skipPow</code></td>
<td class="type">
<span class="param-type">boolean</span>
</td>
<td class="description last"><p>Do not validate object POW</p></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line327">line 327</a>
</li></ul></dd>
</dl>
<h5>Throws:</h5>
<dl>
<dt>
<div class="param-desc">
<p>Invalid object</p>
</div>
</dt>
<dd></dd>
<dt>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
</dt>
<dd></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p><a href="module-bitmessage_structs.object.html#.DecodeResult">Decoded <code>object</code> structure.</a></p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">DecodeResult</span>
</dd>
</dl>
<h4 class="name" id=".decodePayload"><span class="type-signature">(static) </span>decodePayload<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
<p>Decode <code>object</code> message payload.
The same as <a href="module-bitmessage_structs.object.html#.decode">decode</a>.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line337">line 337</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".encode"><span class="type-signature">(static) </span>encode<span class="signature">(opts)</span><span class="type-signature"> &rarr; {Buffer}</span></h4>
<div class="description">
<p>Encode <code>object</code> message.</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>opts</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="description last"><p>Object options</p>
<h6>Properties</h6>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>nonce</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>A 8-byte object nonce</p></td>
</tr>
<tr>
<td class="name"><code>ttl</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Time to live in seconds</p></td>
</tr>
<tr>
<td class="name"><code>type</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Object type</p></td>
</tr>
<tr>
<td class="name"><code>version</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Object version</p></td>
</tr>
<tr>
<td class="name"><code>stream</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>Object stream (1 by default)</p></td>
</tr>
<tr>
<td class="name"><code>objectPayload</code></td>
<td class="type">
<span class="param-type">Buffer</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Object payload</p></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line443">line 443</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Encoded message.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Buffer</span>
</dd>
</dl>
<h4 class="name" id=".encodePayload"><span class="type-signature">(static) </span>encodePayload<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
<p>Encode <code>object</code> message payload.
The same as <a href="module-bitmessage_structs.object.html#.encode">encode</a>.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line452">line 452</a>
</li></ul></dd>
</dl>
<h4 class="name" id=".encodePayloadWithoutNonce"><span class="type-signature">(static) </span>encodePayloadWithoutNonce<span class="signature">(opts)</span><span class="type-signature"> &rarr; {Buffer}</span></h4>
<div class="description">
<p>Encode <code>object</code> message payload without leading nonce field (may be
useful if you are going to calculate it later).</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>opts</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="description last"><p>Object options</p>
<h6>Properties</h6>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>ttl</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Time to live in seconds</p></td>
</tr>
<tr>
<td class="name"><code>type</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Object type</p></td>
</tr>
<tr>
<td class="name"><code>version</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Object version</p></td>
</tr>
<tr>
<td class="name"><code>stream</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>Object stream (1 by default)</p></td>
</tr>
<tr>
<td class="name"><code>objectPayload</code></td>
<td class="type">
<span class="param-type">Buffer</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Object payload</p></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line481">line 481</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Encoded payload.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Buffer</span>
</dd>
</dl>
<h4 class="name" id=".validate"><span class="type-signature">(static) </span>validate<span class="signature">(buf, opts<span class="signature-attributes">opt</span>)</span><span class="type-signature"> &rarr; (nullable) {Error}</span></h4>
<div class="description">
<p>Check whether given <code>object</code> message is valid.</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>buf</code></td>
<td class="type">
<span class="param-type">Buffer</span>
</td>
<td class="attributes">
</td>
<td class="description last"><p>Message</p></td>
</tr>
<tr>
<td class="name"><code>opts</code></td>
<td class="type">
<span class="param-type">Object</span>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last"><p>Any of <a href="module-bitmessage_structs.object.html#.decode">object.decode</a> options and:</p>
<h6>Properties</h6>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>stream</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Expected object's stream</p></td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line398">line 398</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<div class="param-desc">
<p>Return an error with description if object is
invalid.</p>
</div>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Error</span>
</dd>
</dl>
<h4 class="name" id=".validatePayload"><span class="type-signature">(static) </span>validatePayload<span class="signature">()</span><span class="type-signature"></span></h4>
<div class="description">
<p>Check whether <code>object</code> message payload is valid.
The same as <a href="module-bitmessage_structs.object.html#.validate">validate</a>.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line416">line 416</a>
</li></ul></dd>
</dl>
<h3 class="subsection-title">Type Definitions</h3>
<h4 class="name" id=".DecodeResult">DecodeResult</h4>
<h5>Type:</h5>
<ul>
<li>
<span class="param-type">Object</span>
</li>
</ul>
<h5 class="subsection-title">Properties:</h5>
<table class="props">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>nonce</code></td>
<td class="type">
<span class="param-type">Buffer</span>
</td>
<td class="description last"><p>A 8-byte object nonce</p></td>
</tr>
<tr>
<td class="name"><code>ttl</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Time to live in seconds</p></td>
</tr>
<tr>
<td class="name"><code>expires</code></td>
<td class="type">
<span class="param-type">Date</span>
</td>
<td class="description last"><p>Object expiration date</p></td>
</tr>
<tr>
<td class="name"><code>type</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Object type</p></td>
</tr>
<tr>
<td class="name"><code>version</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Object version</p></td>
</tr>
<tr>
<td class="name"><code>stream</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Object stream</p></td>
</tr>
<tr>
<td class="name"><code>headerLength</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>Length of the object header</p></td>
</tr>
<tr>
<td class="name"><code>objectPayload</code></td>
<td class="type">
<span class="param-type">Buffer</span>
</td>
<td class="description last"><p>Object payload</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="structs.js.html">structs.js</a>, <a href="structs.js.html#line303">line 303</a>
</li></ul></dd>
</dl>
</article>
</section>
</div>
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