---
title: String
description: String protos for Istio API.
location: https://istio.io/docs/reference/config/istio.string.v1alpha1.html
layout: protoc-gen-docs
generator: protoc-gen-docs
number_of_entries: 1
---
<p>This package defines common string protos.</p>

<h2 id="StringMatch">StringMatch</h2>
<section>
<p>Describes how to match a given string. Match is case-sensitive.</p>

<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr id="StringMatch-exact" class="oneof oneof-start">
<td><code>exact</code></td>
<td><code>string (oneof)</code></td>
<td>
<p>exact string match.</p>

</td>
</tr>
<tr id="StringMatch-prefix" class="oneof">
<td><code>prefix</code></td>
<td><code>string (oneof)</code></td>
<td>
<p>prefix-based match.</p>

</td>
</tr>
<tr id="StringMatch-suffix" class="oneof">
<td><code>suffix</code></td>
<td><code>string (oneof)</code></td>
<td>
<p>suffix-based match.</p>

</td>
</tr>
<tr id="StringMatch-regex" class="oneof">
<td><code>regex</code></td>
<td><code>string (oneof)</code></td>
<td>
<p>ECMAscript style regex-based match as defined by <a href="http://en.cppreference.com/w/cpp/regex/ecmascript">EDCA-262</a>.
Example: &ldquo;^/pets/(.*?)?&rdquo;</p>

</td>
</tr>
</tbody>
</table>
</section>