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<h1 class="title toc-ignore">File Dialogs</h1>

Using the <code>rstudioapi</code> package, you can request input from the user with various dialogs.
The <code>selectFile()</code> and <code>selectDirectory()</code> APIs allow you to request the name of an existing or non-existing path on the system.
<div class="sourceCode" id="cb1"><pre class="sourceCode r"><code class="sourceCode r"><a href="#cb1-1"></a># request the path to an existing .csv file on disk
<a href="#cb1-2"></a>path &lt;- rstudioapi::selectFile(caption = &quot;Select CSV File&quot;,
<a href="#cb1-3"></a> filter = &quot;CSV Files (*.csv)&quot;,
<a href="#cb1-4"></a> existing = TRUE)
<a href="#cb1-5"></a>
<a href="#cb1-6"></a># now, you could read the data using e.g. &#39;readr::read_csv()&#39;
<a href="#cb1-7"></a>data &lt;- readr::read_csv(path)
<a href="#cb1-8"></a>
<a href="#cb1-9"></a># request a file path (e.g. where you would like to save a new file)
<a href="#cb1-10"></a>target &lt;- rstudioapi::selectFile(caption = &quot;Save File&quot;,
<a href="#cb1-11"></a> label = &quot;Save&quot;,
<a href="#cb1-12"></a> existing = FALSE)
<a href="#cb1-13"></a>
<a href="#cb1-14"></a># save data to the path provided by the user
<a href="#cb1-15"></a>saveRDS(data, file = target)</code></pre></div>
Use <code>rstudioapi::askForPassword()</code> to request a password, or other credentials, from a user.
<div class="sourceCode" id="cb2"><pre class="sourceCode r"><code class="sourceCode r"><a href="#cb2-1"></a>token &lt;- rstudioapi::askForPassword(
<a href="#cb2-2"></a> prompt = &quot;Please provide your GitHub access token.&quot;
<a href="#cb2-3"></a>)</code></pre></div>
Use <code>rstudioapi::showDialog()</code> to display an informative dialog to the user. This dialog is used to report some kind of status or information to the user; it does not request any input.
<div class="sourceCode" id="cb3"><pre class="sourceCode r"><code class="sourceCode r"><a href="#cb3-1"></a>rstudioapi::showDialog(title = &quot;Hello, world!&quot;,
<a href="#cb3-2"></a> message = &quot;You&#39;re &lt;b&gt;awesome!&lt;/b&gt;&quot;,
<a href="#cb3-3"></a> url = &quot;http://www.example.com&quot;)</code></pre></div>

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