---
title: Config Options for elm
sidebar_label: elm
---

| Option | Description | Values | Default |
| ------ | ----------- | ------ | ------- |
|elmVersion|Elm version: 0.18, 0.19|<dl><dt>**0.19**</dt><dd>Elm 0.19</dd><dt>**0.18**</dt><dd>Elm 0.18</dd><dl>|0.19|
|elmPrefixCustomTypeVariants|Prefix custom type variants| |false|
|elmEnableCustomBasePaths|Enable setting the base path for each request| |false|
|elmEnableHttpRequestTrackers|Enable adding a tracker to each http request| |false|
