---
title: Bypass
description: Adapter for connecting to gRPC based adapters as an inline adapter for some templates.
layout: protoc-gen-docs
generator: protoc-gen-docs
number_of_entries: 1
---
<p>The <code>bypass</code> adapter makes it possible to connect to gRPC based remote adapters using the compiled-in adapter
model.</p>

<p>This adapter supports the following templates:
<a href="https://istio.io/docs/reference/config/policy-and-telemetry/templates/metric/">metric</a>.
<a href="https://istio.io/docs/reference/config/policy-and-telemetry/templates/checknothing/">checknothing</a>.
<a href="https://istio.io/docs/reference/config/policy-and-telemetry/templates/reportnothing/">reportnothing</a>.
<a href="https://istio.io/docs/reference/config/policy-and-telemetry/templates/quota/">quota</a>.</p>

<p>Example configuration:</p>

<pre><code>### sessionBased indicates whether the client should use the Infrastructure API of the backend
### to create sessions. If set to true, the bypass adapter will first create a session.
sessionBased: false

### backendAddress is the remote adapter service backend address.
backendAddress: localhost:4567

### params is base64 encoded Any proto that should be passed to the remote backend as
### configuration.
params: RGFuJ3MgVG9vbHMgYXJlIGNvb2wh...
</code></pre>

<h2 id="Params">Params</h2>
<section>
<p>Configuration format for the Bypass adapter.</p>

<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Type</th>
<th>Description</th>
<th>Required</th>
</tr>
</thead>
<tbody>
<tr id="Params-backend_address">
<td><code>backendAddress</code></td>
<td><code>string</code></td>
<td>
<p>The backend address for the remote policy backend.</p>

</td>
<td>
No
</td>
</tr>
<tr id="Params-params">
<td><code>params</code></td>
<td><code><a href="https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#any">Any</a></code></td>
<td>
<p>The actual config parameters to send to the remote backend.</p>

</td>
<td>
No
</td>
</tr>
<tr id="Params-session_based">
<td><code>sessionBased</code></td>
<td><code>bool</code></td>
<td>
<p>Indicates whether the protocol is session based or not.</p>

</td>
<td>
No
</td>
</tr>
</tbody>
</table>
</section>