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    <title>Class AsyncUnaryCall&lt;TResponse&gt;
   | gRPC for .NET </title>
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   | gRPC for .NET ">
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            <article class="content wrap" id="_content" data-uid="Grpc.Core.AsyncUnaryCall`1">
  
  
  <h1 id="Grpc_Core_AsyncUnaryCall_1" data-uid="Grpc.Core.AsyncUnaryCall`1" class="text-break">Class AsyncUnaryCall&lt;TResponse&gt;
  </h1>
  <div class="markdown level0 summary"><p>Return type for single request - single response call.</p>
</div>
  <div class="markdown level0 conceptual"></div>
  <div class="inheritance">
    <h5>Inheritance</h5>
    <div class="level0"><span class="xref">IDisposable</span></div>
    <div class="level1"><span class="xref">AsyncUnaryCall&lt;TResponse&gt;</span></div>
  </div>
  <h6><strong>Namespace</strong>: <a class="xref" href="Grpc.Core.html">Grpc.Core</a></h6>
  <h6><strong>Assembly</strong>: Grpc.Core.Api.dll</h6>
  <h5 id="Grpc_Core_AsyncUnaryCall_1_syntax">Syntax</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public sealed class AsyncUnaryCall&lt;TResponse&gt; : IDisposable</code></pre>
  </div>
  <h5 class="typeParameters">Type Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="parametername">TResponse</span></td>
        <td><p>Response message type for this call.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="constructors">Constructors
  </h3>
  <a id="Grpc_Core_AsyncUnaryCall_1__ctor_" data-uid="Grpc.Core.AsyncUnaryCall`1.#ctor*"></a>
  <h4 id="Grpc_Core_AsyncUnaryCall_1__ctor_Task__0__Task_Grpc_Core_Metadata__Func_Grpc_Core_Status__Func_Grpc_Core_Metadata__Action_" data-uid="Grpc.Core.AsyncUnaryCall`1.#ctor(Task{`0},Task{Grpc.Core.Metadata},Func{Grpc.Core.Status},Func{Grpc.Core.Metadata},Action)">AsyncUnaryCall(Task&lt;TResponse&gt;, Task&lt;Metadata&gt;, Func&lt;Status&gt;, Func&lt;Metadata&gt;, Action)</h4>
  <div class="markdown level1 summary"><p>Creates a new AsyncUnaryCall object with the specified properties.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public AsyncUnaryCall(Task&lt;TResponse&gt; responseAsync, Task&lt;Metadata&gt; responseHeadersAsync, Func&lt;Status&gt; getStatusFunc, Func&lt;Metadata&gt; getTrailersFunc, Action disposeAction)</code></pre>
  </div>
  <h5 class="parameters">Parameters</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Name</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">Task</span>&lt;TResponse&gt;</td>
        <td><span class="parametername">responseAsync</span></td>
        <td><p>The response of the asynchronous call.</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">Task</span>&lt;<a class="xref" href="Grpc.Core.Metadata.html">Metadata</a>&gt;</td>
        <td><span class="parametername">responseHeadersAsync</span></td>
        <td><p>Response headers of the asynchronous call.</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">Func</span>&lt;<a class="xref" href="Grpc.Core.Status.html">Status</a>&gt;</td>
        <td><span class="parametername">getStatusFunc</span></td>
        <td><p>Delegate returning the status of the call.</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">Func</span>&lt;<a class="xref" href="Grpc.Core.Metadata.html">Metadata</a>&gt;</td>
        <td><span class="parametername">getTrailersFunc</span></td>
        <td><p>Delegate returning the trailing metadata of the call.</p>
</td>
      </tr>
      <tr>
        <td><span class="xref">Action</span></td>
        <td><span class="parametername">disposeAction</span></td>
        <td><p>Delegate to invoke when Dispose is called on the call object.</p>
</td>
      </tr>
    </tbody>
  </table>
  <h3 id="properties">Properties
  </h3>
  <a id="Grpc_Core_AsyncUnaryCall_1_ResponseAsync_" data-uid="Grpc.Core.AsyncUnaryCall`1.ResponseAsync*"></a>
  <h4 id="Grpc_Core_AsyncUnaryCall_1_ResponseAsync" data-uid="Grpc.Core.AsyncUnaryCall`1.ResponseAsync">ResponseAsync</h4>
  <div class="markdown level1 summary"><p>Asynchronous call result.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public Task&lt;TResponse&gt; ResponseAsync { get; }</code></pre>
  </div>
  <h5 class="propertyValue">Property Value</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">Task</span>&lt;TResponse&gt;</td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <a id="Grpc_Core_AsyncUnaryCall_1_ResponseHeadersAsync_" data-uid="Grpc.Core.AsyncUnaryCall`1.ResponseHeadersAsync*"></a>
  <h4 id="Grpc_Core_AsyncUnaryCall_1_ResponseHeadersAsync" data-uid="Grpc.Core.AsyncUnaryCall`1.ResponseHeadersAsync">ResponseHeadersAsync</h4>
  <div class="markdown level1 summary"><p>Asynchronous access to response headers.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public Task&lt;Metadata&gt; ResponseHeadersAsync { get; }</code></pre>
  </div>
  <h5 class="propertyValue">Property Value</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">Task</span>&lt;<a class="xref" href="Grpc.Core.Metadata.html">Metadata</a>&gt;</td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <h3 id="methods">Methods
  </h3>
  <a id="Grpc_Core_AsyncUnaryCall_1_Dispose_" data-uid="Grpc.Core.AsyncUnaryCall`1.Dispose*"></a>
  <h4 id="Grpc_Core_AsyncUnaryCall_1_Dispose" data-uid="Grpc.Core.AsyncUnaryCall`1.Dispose">Dispose()</h4>
  <div class="markdown level1 summary"><p>Provides means to cleanup after the call.
If the call has already finished normally (request stream has been completed and call result has been received), doesn&apos;t do anything.
Otherwise, requests cancellation of the call which should terminate all pending async operations associated with the call.
As a result, all resources being used by the call should be released eventually.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public void Dispose()</code></pre>
  </div>
  <h5 id="Grpc_Core_AsyncUnaryCall_1_Dispose_remarks">Remarks</h5>
  <div class="markdown level1 remarks"><p>Normally, there is no need for you to dispose the call unless you want to utilize the
&quot;Cancel&quot; semantics of invoking <code>Dispose</code>.</p>
</div>
  <a id="Grpc_Core_AsyncUnaryCall_1_GetAwaiter_" data-uid="Grpc.Core.AsyncUnaryCall`1.GetAwaiter*"></a>
  <h4 id="Grpc_Core_AsyncUnaryCall_1_GetAwaiter" data-uid="Grpc.Core.AsyncUnaryCall`1.GetAwaiter">GetAwaiter()</h4>
  <div class="markdown level1 summary"><p>Allows awaiting this object directly.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public TaskAwaiter&lt;TResponse&gt; GetAwaiter()</code></pre>
  </div>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><span class="xref">TaskAwaiter</span>&lt;TResponse&gt;</td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <a id="Grpc_Core_AsyncUnaryCall_1_GetStatus_" data-uid="Grpc.Core.AsyncUnaryCall`1.GetStatus*"></a>
  <h4 id="Grpc_Core_AsyncUnaryCall_1_GetStatus" data-uid="Grpc.Core.AsyncUnaryCall`1.GetStatus">GetStatus()</h4>
  <div class="markdown level1 summary"><p>Gets the call status if the call has already finished.
Throws InvalidOperationException otherwise.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public Status GetStatus()</code></pre>
  </div>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Grpc.Core.Status.html">Status</a></td>
        <td></td>
      </tr>
    </tbody>
  </table>
  <a id="Grpc_Core_AsyncUnaryCall_1_GetTrailers_" data-uid="Grpc.Core.AsyncUnaryCall`1.GetTrailers*"></a>
  <h4 id="Grpc_Core_AsyncUnaryCall_1_GetTrailers" data-uid="Grpc.Core.AsyncUnaryCall`1.GetTrailers">GetTrailers()</h4>
  <div class="markdown level1 summary"><p>Gets the call trailing metadata if the call has already finished.
Throws InvalidOperationException otherwise.</p>
</div>
  <div class="markdown level1 conceptual"></div>
  <h5 class="decalaration">Declaration</h5>
  <div class="codewrapper">
    <pre><code class="lang-csharp hljs">public Metadata GetTrailers()</code></pre>
  </div>
  <h5 class="returns">Returns</h5>
  <table class="table table-bordered table-striped table-condensed">
    <thead>
      <tr>
        <th>Type</th>
        <th>Description</th>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td><a class="xref" href="Grpc.Core.Metadata.html">Metadata</a></td>
        <td></td>
      </tr>
    </tbody>
  </table>
</article>
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