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 <div class="row">
   <div class="col-md-9 contents">
     <div class="page-header">
     <h1>Read a JSON file</h1>
     <small class="dont-index">Source: <a href='https://github.com/apache/arrow/blob/master/r/R/json.R'><code>R/json.R</code></a></small>
     <div class="hidden name"><code>read_json_arrow.Rd</code></div>
     </div>

     <div class="ref-description">
     <p>Using <a href='CsvTableReader.html'>JsonTableReader</a></p>
     </div>

     <pre class="usage"><span class='fu'>read_json_arrow</span><span class='op'>(</span>
   <span class='va'>file</span>,
   col_select <span class='op'>=</span> <span class='cn'>NULL</span>,
   as_data_frame <span class='op'>=</span> <span class='cn'>TRUE</span>,
   schema <span class='op'>=</span> <span class='cn'>NULL</span>,
   <span class='va'>...</span>
 <span class='op'>)</span></pre>

     <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
     <table class="ref-arguments">
     <colgroup><col class="name" /><col class="desc" /></colgroup>
     <tr>
       <th>file</th>
       <td><p>A character file name or URI, <code>raw</code> vector, an Arrow input stream,
 or a <code>FileSystem</code> with path (<code>SubTreeFileSystem</code>).
 If a file name, a memory-mapped Arrow <a href='InputStream.html'>InputStream</a> will be opened and
 closed when finished; compression will be detected from the file extension
 and handled automatically. If an input stream is provided, it will be left
 open.</p></td>
     </tr>
     <tr>
       <th>col_select</th>
       <td><p>A character vector of column names to keep, as in the
 "select" argument to <code>data.table::fread()</code>, or a
 <a href='https://tidyselect.r-lib.org/reference/vars_select.html'>tidy selection specification</a>
 of columns, as used in <code><a href='https://dplyr.tidyverse.org/reference/select.html'>dplyr::select()</a></code>.</p></td>
     </tr>
     <tr>
       <th>as_data_frame</th>
       <td><p>Should the function return a <code>data.frame</code> (default) or
 an Arrow <a href='Table.html'>Table</a>?</p></td>
     </tr>
     <tr>
       <th>schema</th>
       <td><p><a href='Schema.html'>Schema</a> that describes the table.</p></td>
     </tr>
     <tr>
       <th>...</th>
       <td><p>Additional options passed to <code>JsonTableReader$create()</code></p></td>
     </tr>
     </table>

     <h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

     <p>A <code>data.frame</code>, or a Table if <code>as_data_frame = FALSE</code>.</p>

     <h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
     <pre class="examples"><div class='input'><span class='co'># \donttest{</span>
   <span class='va'>tf</span> <span class='op'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/tempfile.html'>tempfile</a></span><span class='op'>(</span><span class='op'>)</span>
   <span class='fu'><a href='https://rdrr.io/r/base/on.exit.html'>on.exit</a></span><span class='op'>(</span><span class='fu'><a href='https://rdrr.io/r/base/unlink.html'>unlink</a></span><span class='op'>(</span><span class='va'>tf</span><span class='op'>)</span><span class='op'>)</span>
   <span class='fu'><a href='https://rdrr.io/r/base/writeLines.html'>writeLines</a></span><span class='op'>(</span><span class='st'>'
     { "hello": 3.5, "world": false, "yo": "thing" }
     { "hello": 3.25, "world": null }
     { "hello": 0.0, "world": true, "yo": null }
   '</span>, <span class='va'>tf</span>, useBytes<span class='op'>=</span><span class='cn'>TRUE</span><span class='op'>)</span>
   <span class='va'>df</span> <span class='op'>&lt;-</span> <span class='fu'>read_json_arrow</span><span class='op'>(</span><span class='va'>tf</span><span class='op'>)</span>
 <span class='co'># }</span>
 </div></pre>
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	</header>

	<div class="row">
	<div class="col-md-9 contents">
	<div class="page-header">
	<h1>Read a JSON file</h1>
	<small class="dont-index">Source: <a href='https://github.com/apache/arrow/blob/master/r/R/json.R'><code>R/json.R</code></a></small>
	<div class="hidden name"><code>read_json_arrow.Rd</code></div>
	</div>

	<div class="ref-description">
	<p>Using <a href='CsvTableReader.html'>JsonTableReader</a></p>
	</div>

	<pre class="usage"><span class='fu'>read_json_arrow</span><span class='op'>(</span>
	<span class='va'>file</span>,
	col_select <span class='op'>=</span> <span class='cn'>NULL</span>,
	as_data_frame <span class='op'>=</span> <span class='cn'>TRUE</span>,
	schema <span class='op'>=</span> <span class='cn'>NULL</span>,
	<span class='va'>...</span>
	<span class='op'>)</span></pre>

	<h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
	<table class="ref-arguments">
	<colgroup><col class="name" /><col class="desc" /></colgroup>
	<tr>
	<th>file</th>
	<td><p>A character file name or URI, <code>raw</code> vector, an Arrow input stream,
	or a <code>FileSystem</code> with path (<code>SubTreeFileSystem</code>).
	If a file name, a memory-mapped Arrow <a href='InputStream.html'>InputStream</a> will be opened and
	closed when finished; compression will be detected from the file extension
	and handled automatically. If an input stream is provided, it will be left
	open.</p></td>
	</tr>
	<tr>
	<th>col_select</th>
	<td><p>A character vector of column names to keep, as in the
	"select" argument to <code>data.table::fread()</code>, or a
	<a href='https://tidyselect.r-lib.org/reference/vars_select.html'>tidy selection specification</a>
	of columns, as used in <code><a href='https://dplyr.tidyverse.org/reference/select.html'>dplyr::select()</a></code>.</p></td>
	</tr>
	<tr>
	<th>as_data_frame</th>
	<td><p>Should the function return a <code>data.frame</code> (default) or
	an Arrow <a href='Table.html'>Table</a>?</p></td>
	</tr>
	<tr>
	<th>schema</th>
	<td><p><a href='Schema.html'>Schema</a> that describes the table.</p></td>
	</tr>
	<tr>
	<th>...</th>
	<td><p>Additional options passed to <code>JsonTableReader$create()</code></p></td>
	</tr>
	</table>

	<h2 class="hasAnchor" id="value"><a class="anchor" href="#value"></a>Value</h2>

	<p>A <code>data.frame</code>, or a Table if <code>as_data_frame = FALSE</code>.</p>

	<h2 class="hasAnchor" id="examples"><a class="anchor" href="#examples"></a>Examples</h2>
	<pre class="examples"><div class='input'><span class='co'># \donttest{</span>
	<span class='va'>tf</span> <span class='op'><-</span> <span class='fu'><a href='https://rdrr.io/r/base/tempfile.html'>tempfile</a></span><span class='op'>(</span><span class='op'>)</span>
	<span class='fu'><a href='https://rdrr.io/r/base/on.exit.html'>on.exit</a></span><span class='op'>(</span><span class='fu'><a href='https://rdrr.io/r/base/unlink.html'>unlink</a></span><span class='op'>(</span><span class='va'>tf</span><span class='op'>)</span><span class='op'>)</span>
	<span class='fu'><a href='https://rdrr.io/r/base/writeLines.html'>writeLines</a></span><span class='op'>(</span><span class='st'>'
	{ "hello": 3.5, "world": false, "yo": "thing" }
	{ "hello": 3.25, "world": null }
	{ "hello": 0.0, "world": true, "yo": null }
	'</span>, <span class='va'>tf</span>, useBytes<span class='op'>=</span><span class='cn'>TRUE</span><span class='op'>)</span>
	<span class='va'>df</span> <span class='op'><-</span> <span class='fu'>read_json_arrow</span><span class='op'>(</span><span class='va'>tf</span><span class='op'>)</span>
	<span class='co'># }</span>
	</div></pre>
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